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150-300KG Hydraulic Tilting Induction Furnace

Click Here To Know Other Models Of Our Model Vacuum Induction Melting Furnace

*The shell can be customized as an 8cm thick stainless steel plate, making the furnace stronger and more durable without rust

500kg Hydraulic Tilting Induction Furnace

Main Furnace–Front Side

Main Furnace–Back Side

Parameter

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Precious Metal Melting Furnaces

Small Vacuum induction melting furnace

文章作者 cdocast_admin
发布日期 10月 12, 2020
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Small Vacuum Induction Melting Furnace video

1kg Silver Vacuum Bullion Casting machine

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[what is Small Vacuum induction melting furnace ]

CDOCAST Small vacuum Induction melting furnace is specially designed for melting small volume non-ferrous and ferrous metals under vacuum condition, the complete melting furnace mainly consists of furnace, vacuum pump, pouring mechanism, different levels of vacuum pump will be choosen according to different vacuum degree requirement.

The maximum temperature of this small vacuum furnace can reach 2200 degrees. It can be used to smelt precious metals (gold, silver, platinum, palladium) and other high-temperature alloys, such as nickel-based alloys.

This vacuum induction melting furnace adopted IGBT induction heating technology and comes with a rapid melting speed. For example,The melting speed of 10kg of molten metal can be completed in 1o minutes, due to this high efficiency feature which makes this small vacuum melter popular in the market. Moreover, the entire pouring process is carried out in a vacuum condition to ensure that the metal is protected to the greatest extent from oxidation and the quality of the castings.

Machine Pictures

Parameter

Model number	CDO-VTF15
Power source	3 phase 380V, 50/60Hz
Applicable metal	Gold, Silver, Platinum, Palladium, and their alloys
Melting time	7-10 minutes
Max capacity	Palladium: 2 kg Gold: 3 kg Silver: 1.6 kg
Max temperature	2600℃
Water cooling requirement	≥0.3Mpa, flow rate≥20L/min, ≤45℃
Dimension	69012001100mm
Weight	220 kgs
Heating technology	Induction heating

Feature

[ Small Vacuum induction melting furnace Feature]

1: Integrated design, smelting power supply and furnace body are designed integrated to one operation cabinet ,thus the whole equipment is small in size and do not occupying space

2:·Optional program heating and temperature control which can set the heating or cooling curve according to your process requirements, and the vacuum melting furnace will automatically heat or cool according to this process

3:Cdocast small vacuum melting furnace comes With pouring device, you can pour the melted sample into the ingot mold which is prepared in advance, and pour out the sample shape you want

4:· This vacuum induction melting furnace can be smelted in a variety of atmospheres: smelting in air, protective atmosphere and high vacuum. Adopt one device to achieve multiple functions which can greatest saves your cost.

5.· Optional secondary feeding system: it can add other elements in the melting process, which is convenient for you to prepare diversified samples

6:The furnace body can be designed with stainless steel structure, and with water cooling, to ensure that the temperature of the shell is lower than 35 ℃, to protect your personal safety…

Catalog

Click here to see the video link for the Laboratory Vacuum Induction Melting Furnace:

Melting and casting process takes place in a vacuum, almost no oxidation and no loss of your precious metals

Vacuum melting machine is equipped with two observation so that both melting and casting can be clearly seen

Operation panel can be customized to Siemens touchscreen panel,which can make the whole operation more advanced and easier

Precious Metal Melting Furnaces

Laboratory Vacuum Induction Melting Furnace

文章作者 cdocast_admin
发布日期 3月 26, 2022
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Laboratory Vacuum Induction Melting Furnace

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[ Laboratory Vacuum Induction Melting Furnace ]

*Ultimate Guide to Laboratory Vacuum Induction Melting Furnaces: Precision Engineering for Advanced Materials Research

*Introduction:

In the realm of materials science and metallurgical research, precision, control, and adaptability are paramount. Our laboratory vacuum induction melting furnace stands as a pinnacle of innovation, engineered to meet the rigorous demands of modern research and development. Designed for applications ranging from alloy development to advanced ceramics processing, this furnace combines cutting-edge technology with practical flexibility, making it an indispensable tool for academic institutions, industrial laboratories, and R&D facilities worldwide.

*Key Features and Benefits:

1. Versatile Capacity for Diverse Research Needs

– With a capacity range of 1kg to 10kg, our vacuum furnace accommodates both small-scale experiments and pilot production runs. This versatility ensures that researchers can efficiently process materials without compromising on precision or control. Whether you’re sintering metal powders, heat-treating alloys, or growing single crystals, this furnace delivers consistent results across a broad spectrum of applications.

2. Customizable Vacuum Systems for Precision Atmosphere Control

– The heart of any vacuum furnace lies in its ability to maintain a controlled environment. Our systems offer configurable vacuum pumping options to meet specific experimental requirements:

– Diffusion Pumps: Ideal for cost-effective high-vacuum applications, these pumps achieve vacuum levels suitable for most common metals and alloys.

– Molecular Pumps: For ultra-high vacuum environments (up to 10⁻⁸ mbar), molecular pumps are essential for processing oxygen-sensitive materials like titanium, nickel-based superalloys, and rare earth metals. This flexibility ensures that your research is never limited by atmospheric constraints.

3. Crucible Compatibility and Customization

▪ The choice of crucible material is critical to preventing contamination and achieving accurate results. Our furnace supports a wide range of crucible options, including:

▪ Silicon Carbide (SiC): Excellent thermal shock resistance and durability, ideal for high-temperature applications.

▪ Graphite: Perfect for non-oxide metals and alloys, offering superior thermal conductivity and stability.

▪ Zirconia (ZrO₂) and Magnesia (MgO): These refractory materials are suited for processing reactive metals and ceramics at extreme temperatures.

▪ Additionally, we offer custom-designed water-cooled copper molds for specialized applications such as rapid solidification, directional solidification, and unique geometric requirements.

4. Broad Material Applications

✔ Our vacuum furnace is designed to handle a diverse array of materials, including:

✔ Non-ferrous metals (e.g., aluminum, copper, and their alloys).

✔ Refractory metals (e.g., tungsten, molybdenum, and tantalum).

✔ Reactive metals (e.g., titanium, zirconium, and rare earth elements).

✔ Advanced ceramics and composites.

✔ The combination of precise temperature control and vacuum integrity ensures minimal contamination, making it possible to achieve high-purity results consistently.

5. User-Friendly Design and Robust Construction

– Built with researchers in mind, our furnace features an intuitive interface, programmable temperature cycles, and real-time monitoring capabilities. The robust construction ensures longevity and reliability, even under continuous operation. Safety features such as over-temperature protection, emergency cooling, and automated shutdown protocols are integrated to safeguard both the equipment and the user.

*Ideal Applications:

– Alloy Development and Testing: Perfect for homogenization, solution treatment, and aging studies.

– Sintering and Powder Metallurgy: Achieve uniform density and microstructure in powdered materials.

– Crystal Growth and Single Crystal Production: Precise temperature gradients and vacuum conditions enable the growth of high-quality crystals.

– Heat Treatment of Advanced Materials: From annealing to quenching, our furnace offers unparalleled control over thermal cycles.

– Academic and Industrial Research: Suitable for fundamental studies as well as applied research in aerospace, automotive, and energy sectors.

Machine Pictures

1KG – 3KG Horizontal Type Small Laboratory Vacuum Induction Melting Furnace

5KG Small Laboratory Vacuum Induction Melting Furnace

10KG 20KG Vacuum Induction Melting Furnace

Optional configuration

Vacuum Melting Furnace Stirring Device (Optional)

CDOCAST Vacuum Melting furnace can be equipped with a stirring device, which can stir materials at a uniform speed. The stirring rod is driven by a speed-regulating motor. Wilson or magnetic fluid and corrugated pipe are used to seal the stirring rod and furnace body. The stirring rod and motor can slide up and down freely under the drive of an electric moving screw rod, enter and leave the crucible.

Vacuum Melting Furnace Secondary Feeding Device (Optional)

The secondary feeding device is designed to add various metal elements in the vacuum smelting process. Therefore, we will design a special 4-grid feeder hopper in the feeding device. The feeding device contains a lid, which can vacuum seal the feeding device. Before melting and vacuum pumping, put the metal elements in the hopper of the feeding device in advance. When feeding, rotate the hopper of the feeding device with the hand wheel, and the metal will flow out of the feeder mouth and into the molten metal level to avoid splashing.

Vacuum Melting Furnace Slag Raking Device (Optional)

The slag raking device consists of a metal rod that can move up and down and rotate 360 degrees, a quartz spoon and a slag crucible. Use a quartz spoon to transfer the slag generated in the experiment to the slag crucible nearby.

Vacuum Melting Furnace Rotating Observation Window (Optional)

There are many pieces of quartz glass in the observation window. You can rotate the contaminated quartz glass to one side and turn the clean glass to the observation hole to observe the melting of materials in the crucible.

Vacuum Melting Furnace Continuous Vacuum Reclaimer (Optional)

The vacuum reclaiming device is composed of stainless steel pushrod, transition bin, high vacuum gate valve, quartz reclaiming spoon, etc; A reclaiming spoon is installed at the lower end of the push-pull rod. The push-pull rod is sealed with a JO seal ring between the push-pull rod and the transition chamber. The transition chamber and the vacuum chamber are connected through a high vacuum gate valve. When the chamber is vacuumized, open the flapper valve, and the reclaiming chamber will be vacuumized accordingly. After the materials are melted, the push-pull rod will push down for reclaiming, then pull to the transition chamber, close the gate, and open the transition chamber door to take the materials just taken out for testing. If it is necessary to take materials again, install the push rod again, close the transition bin door, and then vacuum the transition bin. After vacuum pumping, open the flapper valve to realize continuous vacuum reclaiming.

Vacuum Melting Furnace Other Parts (Optional )

Parameter

Moderl	VIF-1	VIF-2	VIF-3	VIF-5	VIF-10	VIF-25
Maximum melting weight (calculated by molten iron)	1KG	2KG	3KG	5KG	10KG	25KG
Maximum heating temperature ℃	1900℃	2000℃	1700℃	1700℃	1700℃	1700℃
power supply	HF induction power supply			IF induction power supply
Oscillation frequency	30-80KHZ	30-80KHZ	30-80KHZ	1-20KHZ	1-20KHZ	1-20KHZ
maximum input power	15KW	15KW	35KW	45KW	60KW (can be changed according to material)	80KW (can be changed according to material)
heating current	2-50A	2-52A	12-70A	15-95A	10~90A	20~130A
Cooling water requirements	≥0.2MPa ≥6L/min	≥0.2MPa ≥6L/min	≥0.2MPa ≥6L/min	≥0.2MPa ≥6L/min	10P (Change according to different requirements)	10P (Change according to different requirements)
Power supply weight	35KG	35KG	68KG	45KG	70KG	80KG
Input voltage	3P 380V 50/60HZ

Feature

1. Laboratory Vacuum Induction Melting Furnace has fashionable appearance and compact structure, covering an area of less than 2 square meters.

2. The vacuum furnace can be designed as a side door opening structure, which is convenient for taking and placing materials.

3. The furnace shell adopts a double-layer water cooling structure, and the surface temperature does not exceed 40 ℃, which is safer and reliable.

4. An observation window is arranged on the furnace cover to facilitate the observation of material melting. Gas inlet and outlet are installed on the furnace body, and multiple KF interfaces are reserved to facilitate connection to other devices.

5. The electrode can rotate.

6. Equipped with a secondary feeding device, other elements can be added in the smelting process to make various alloy materials.

7. IGBT special power supply and all digital circuits are adopted. The electrical system is equipped with overcurrent, overvoltage feedback, and protection circuit. The electric control panel box is made according to Siemens standard, with high temperature control accuracy and convenient operation.

8. Our small laboratory vacuum induction melting furnace can adopt two-stage pump, that is, mechanical pump and molecular pump, and the vacuum degree can reach 8 × 10-4P.

Buyer Guider

*Why Choose Our Laboratory Vacuum Melting Furnace?

– Proven Reliability: Backed by years of engineering expertise, our systems are trusted by leading research institutions worldwide.

– Customization Options: We understand that no two research projects are alike. Our team works closely with you to tailor the furnace to your specific needs, from vacuum pump configurations to crucible materials.

– Comprehensive Support: From installation and training to maintenance and troubleshooting, we provide end-to-end support to ensure seamless integration into your workflow.

*Technical Specifications

– Temperature Range: Up to 2000°C (optional upgrades available for higher temperatures).

– Vacuum Level: Configurable from medium vacuum (10⁻³ mbar) to ultra-high vacuum (10⁻⁸ mbar).

– Heating Elements: Graphite or molybdenum disilicide (MoSi₂) options, depending on application.

– Cooling System: Advanced water-cooling circuitry for rapid quenching and efficient thermal management.

– Control System: PLC-based interface with data logging and remote monitoring capabilities.

*Conclusion

In the competitive landscape of materials research, having the right tools can make all the difference. Our laboratory vacuum furnace offers the precision, flexibility, and reliability needed to push the boundaries of innovation. Whether you’re exploring new alloys, developing advanced ceramics, or conducting fundamental studies, this furnace is designed to empower your research.

*Contact us today to learn more about how our vacuum furnace can elevate your laboratory’s capabilities. Request a personalized quote or schedule a demo to see the system in action!

Catalog

All material crucibles can be used in this small furnace, which can suit for different metal

Sampling System and Secondary Alloy Adding Can be added, during melting process, you can take sample or add materail into the crucible

Inner Tilting Design，After melting, the crucible can be tilt manually or by hydraulic tilting into the casting mold,

Learn more through the guided article>>

Jewelry Vacuum Casting Machine

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【Jewelry Vacuum Casting Machine】

With the continuous development of modern industry, material science, and manufacturing technology are also constantly innovating. In the field of casting, vacuum pressure casting furnace has attracted widespread attention as a key technology. It achieves significant improvements in material properties and casting quality by applying vacuum and pressure during the casting process. This article will delve into the principles, advantages, and application fields of vacuum pressure casting furnaces, aiming to demonstrate the importance and potential of this technology.

1. Principle of Vacuum Pressure Casting Furnace

Vacuum pressure casting furnace is an advanced casting technology, whose core lies in controlling the atmosphere during the casting process to achieve a high vacuum environment and apply additional pressure. This process involves the following key steps

1.1 Vacuum treatment: Before the start of the casting process, the air inside the vacuum casting machine will be extracted to create a high vacuum environment. This can eliminate the presence of gases and impurities, thereby reducing the internal porosity of the casting and improving its density and uniformity

1.2 Pressurization operation: In a vacuum environment, pressure casting can be achieved by applying additional pressure to the molten metal. This pressure can eliminate bubbles inside the casting and promote a more uniform filling of the molten metal into the mold, thereby reducing shrinkage cavities and defects

CDOCAST Jewelry Vacuum Casting Machine is customized and made to melt and cast 1-6 kg of jewelry gold, silver, and other precious metals. Precious metal is melted and cast in an argon-protected atmosphere under a vacuum to protect your precious jewelry from oxidation, It achieves high density, high compactness, almost no air bubbles, and basically achieves non-shrinkage cavity casting. Any precise jewelry and metal artwork can be perfectly done with the CDOCAST Jewelry Casting Machine. We also offer a year-round warranty and worldwide on-site training services.

CDOCAST can provide a turn-key set of jewelry casting solutions, including a wax injection machine, wax lost heating oven, jewelry vacuum casting machine &washing machine ..etc. If you want to cast your own designed jewelry, please send us an inquiry, our experts will give you Professional design solutions within 24 hrs.

Ready to receive a personalized quote for your Jewelry Vacuum Casting Machine? CLICK TO REQUEST A QUOTE TODAY.

Machine Pictures

The jewelry casting process as below picture shows

Video>>

Finished Product From Jewelry Casting Machine

To learn all equipment in jewelry casting line

Parameter

Model number	CDO-JP1	CDO-JP4	CDO-VP4
Power	5kw	35kw	35kw
Voltage	220V,1P,50/60Hz	380V,3P,50/60Hz	380V,3P,50/60Hz
Casting system	Vacuum pressure casting system	Vacuum pressure casting system	Vacuum pressure casting system
Applicable metal	Gold, K-Gold, Silver, Copper, Brass, Bronze, and their alloys
Melting time	3-5min	3-5min	3-5min
Capacity	1kg gold	1-4kg gold	1-4kg gold
Max temperature	1600℃	1600℃	1600℃
Protective gas	Nitrogen or Argon	Nitrogen or Argon	Nitrogen or Argon
Operation system	Manual	Manual/Auto	Manual/Auto
Max pressure	2 MPa	2 MPa	4 MPa
Overall size	645625935mm	7207001150 mm	8007821336 mm
Weight	130 kg	210 kg	300 kg

The parameter of vacuum gypsum mixer

Model number	CDO-GM5	CDO-GM8
Power	750W	1500W
Voltage	380V,3P,50/60Hz	380V,3P,50/60Hz
Max flask size	4*10 inch	4*10 inch
Capacity	5 pcs	8 pcs
Weight	120KG	180KG
Dimension	7006801400mm	100010001550mm
Other sizes can be customized

The parameter of vacuum gypsum mixer pump

Model number	CDO-GMP15	CDO-GMP30	CDO-GMP70
Voltage	380V,3P,50/60Hz	380V,3P,50/60Hz	380V,3P,50/60Hz
Power	2.2KW	3KW	5.5KW
Rotary speed	320RPM	450RPM	420RPM
Oil Capacity	2.8L	2L	4.2L
Weight	190KG	236KG	338KG
Dimension	790530540mm	780500560mm	910650700mm

Feature

1:CDOCAST Jewelry Vacuum Pressurized Casting Machine is designed with the most advanced PID temperature control, Max Temperature can reach up to 1600 degrees Celsius, with a temperature difference only 2 degrees.

2:The strong induction electromagnetic stirring force makes the metal solution more uniform, and the casting quality is higher.

3:The entire melting and casting process is carried out under vacuum, thus minimizing metal oxidation and minimizing metal loss.

4:CDOACAST Jewelry Vacuum Pressurized Casting Machine Equipped with various safety alarms, such as over-current, over-pressure, water shortage and other alarms, when an emergency occurs, the machine can automatically stop

5:Integrated design of the melting and casting chambers for a more compact structure and a smaller footprint for our Jewelry Casting Machine

6: Jewelry Vacuum Casting Machine’s Pressurized casting design highly improves castings’ density and no porosity compare with the traditional casting

Advantage

Advantages of Jewelry Vacuum Pressure Casting Machine

1:Improving the quality of castings: The vacuum pressure casting machine reduces the presence of gases and impurities, making the internal structure of castings dense and reducing the generation of defects such as pores and shrinkage. This helps to improve the mechanical properties and corrosion resistance of castings, making the final product more reliable.

2:Enhanced alloy properties: In a vacuum environment, the oxidation reaction during the casting process is suppressed, thereby reducing the oxidation loss of the alloy. This can maintain the content of specific elements in the alloy and improve its properties and properties

3:Support for complex structural castings: Vacuum pressure casting furnaces can effectively cast castings with complex structures and rich details, as high vacuum environments and pressure operations can ensure more uniform flow of molten metal in the mold, filling fine voids

4: Energy saving: Compared with traditional casting methods, vacuum pressure casting furnaces have lower energy consumption. Due to faster heating and cooling rates in high vacuum environments, the entire casting cycle is shorter, saving energy and time costs.

Catalog

PRODUCT CATALOG

CDOCAST also offer solutions for high quality wax injection machine and dewaxing burnout oven

Pressurized casting improves density and non-porosity of castings

CDOCAST jewelry casting machine improve casting success and jewelry quality compared to conventional casting.

Click here to watch the video

Jewelry Continuous Casting Machine

Jewelry vacuum continuous casting machine

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[Jewelry Continuous Casting Machine]

*Elevate Your Metal Production with Next-Generation Jewelry Continuous Casting Technology

In the world of precision metal casting, innovation meets craftsmanship through our advanced *Downward Continuous Casting Machine. Engineered for versatility and exceptional performance, these machines empower jewelers, minting authorities, research laboratories, and specialized alloy producers to transform raw materials into flawlessly structured outputs―be it bars, plates, or tubes―with unmatched consistency and control.

CDOCAST Jewelry continuous casting machine is designed to draw small volumes of different shapes of precious metals such as gold, silver, karat gold, copper alloys, etc. This continuous casting machine can melt and cast types of metal into different shapes, like rod, wire, from(6-20mm), strip, bar. The casting speed is adjustable at about 200mm/min, and the melting capacity ranges from 3kg-30kg per batch.

CDOCAST Precious Metal continuous casting machines are fitted with an inert gas protection device to minimize oxidation of the metal and, in the case of karat gold drawing,

An optional vacuum Casting design allows the entire process to be carried out under vacuum conditions if you want to cast K gold or special Metal alloy. A separate vacuum Casting Chamber will be designed according to the client’s requirement, which means the melting& casting will both be under a vacuum condition to prevent any special metal alloy will oxidizing during the casting process. The vacuum continuous casting machine is ideal for the K-gold, copper alloy, and brass alloy casting.

CDOCAST Continuous casting machines adopt the most advanced medium-frequency induction heating technology, which allows super high temperatures to be reached in a very short time and therefore meets the requirements for continuous casting of most metals.

*Unmatched Flexibility for Precious and Non-Ferrous Metals**

Ideal for processing:

✔ Gold (all karats, including custom alloys)

✔ Silver

✔ Copper

✔ Karat Gold Blends

Our systems accommodate casting capacities from 1 kg to 30 kg, offering tailored solutions for both boutique jewelry studios and high-output industrial environments.

*Please note: Due to extreme melting point requirements, this system is not suitable for platinum or palladium.

Machine Pictures

3kg-30kg Capacity Precious Metal Continuous Casting Machine:

Vacuum Continuous Casting Machine For K-GOLD, Metal Alloy

Click here to watch the video

Vacuum Continuous Casting Machine For Rod :

Vacuum Continuous Casting Machine With Wire Take Up Device

Parameter

Model	CDO-JC15	CDO-JC25	CDO-JC30	CDO-JC35
Power	15kw	25kw	30kw	35kw
Voltage	Three phase 380V, 50/60Hz	Three phase 380V, 50/60Hz	Three phase 380V, 50/60Hz	Three phase 380V, 50/60Hz
Suitable Metal	Gold, Silver, Copper, Brass, Bronze, and their alloys	Gold, Silver, Copper, Brass, Bronze, and their alloys	Gold, Silver, Copper, Brass, Bronze, and their alloys	Gold, Silver, Copper, Brass, Bronze, and their alloys
Melting Time	About 5-6 mins	About 5-6 mins	About 15-30 mins	About 15-30 mins
Casting speed	10-20cm/m	10-20cm/m	10-20cm/m	10-20cm/m
Capacity	Gold:3.0 kg Silver: 2.0kg Copper:1.5kg	Gold:6.0 kg Silver: 4.0kg Copper:3.0kg	Gold:10.0 kg Silver: 6.0kg Copper:5.0kg	Gold:20.0 kg Silver:11.0kg Copper:10.0kg
Gas	Argon Gas or Nitrogen	Argon Gas or Nitrogen	Argon Gas or Nitrogen	Argon Gas or Nitrogen
Temperature	1600℃	1600℃	1600℃	1600℃
Overall Size	8006001650mm	9007001750mm	10008001850mm	10008001850mm
Machine Weight	200kg	220kg	240kg	250kg

Feature

Jewelry Continuous Casting Machine Feature

1. CDOCAST Jewelry Continuous Casting Machine Adopts intermediate frequency induction heating technology, with the advantage of high power and fast melting, and the highest temperature can reach 1300°C. It has a strong intermediate frequency stirring force, which can lead to a high degree of uniformity of the metal, which is especially helpful for the casting of gold, silver, and copper alloys.

2. Equipped with independent temperature control to continuously monitor the temperature during the entire draw process.

3. Comes with the built-in continuous temperature measurement system, easy to monitor the state of metal lead casting, which leads to the best density and quality of the final product.

4. Design with the ability to work 24 hours per day, this function ensures maximum productivity to meet the high production demands of some customers.

5. Power traction casting can realize drawing pipes, drawing rods, drawing sheets, and drawing strip pipes, which have the characteristics of high speed and high density of finished products. It has the unique magnetic stirring induction heating function to make the metal smelt more uniformly and increase the casting speed.

6. Special device is designed for pulling for automatic detection of slippage phenomena between the roller and the semi-finished product.

7. If a rapid cooling process is required, a water spray system can be installed to cool the semi-finished product directly.

8. Each continuous casting machine is equipped with advanced hydraulic shears for easy cutting of semi-finished products.

9. Abnormal alarm system, it will automatically stop when an abnormality occurs, so as to protect the machine to the greatest extent and prevent damage to the machine.

10. Different capacities can be customized, down-draw casting, effectively reduce the sand hole of the workpiece, and meet the requirements of deep processing.

Buyer Guider

*Precision-Engineered Outputs for Diverse Industries

From intricately designed jewelry components to standardized minting blanks and R&D prototypes, our Downward Continuous Casting Machine delivers:

✔ Bars & Plates: Perfect for rolling mills, stamping, and fabrication

✔ Tubes & Custom Profiles: Ideal for decorative, industrial, or architectural applications

✔ Tailored Dimensions: Customizable molds and continuous casting parameters ensure products match exact customer specifications.

*Cutting-Edge Features for Modern Manufacturers

1. Medium-Frequency Melting Technology

Achieve rapid, uniform melting with exceptional temperature stability—critical for preserving material properties and ensuring defect-free results.

2. Optional Hydraulic Shear System

Streamline production of large plates and continuous bars with an integrated hydraulic shear that automatically cuts cast products to desired lengths. No manual handling, no compromise on precision.

3. Intuitive Touchscreen Control

Take command of the entire casting process through a user-friendly digital interface. Monitor temperatures, control casting speed, and save custom profiles for different metals and shapes.

4. Vacuum Casting Upgrade

For oxidation-sensitive metals and alloys, our optional vacuum chamber attachment ensures melt and cast processes occur in an oxygen-free environment, preserving material purity and surface quality.

*Designed for the Innovators

Whether you’re crafting limited-edition jewelry, producing investment-grade minted products, or pioneering new alloys in a laboratory setting, this machine offers:

– Repeatable, high-yield production cycles

– Customization at every stage—from mold design to automation features

– Enhanced metal integrity via controlled solidification and reduced oxidation

*Ideal Applications Include

▶ Jewelry Manufacturing: Custom karat gold casting

▶ Mint & Medallion Production: Consistent-quality blank formation

▶ R&D and Specialty Alloy Development: Experimental casting under controllable conditions

▶ Industrial Metal Fabrication: Copper and silver parts for technical applications

*Bringing Imagination to Metal—Your Way

We don’t just build machines—we enable possibilities. With configurable options ranging from vacuum capabilities to smart automation, our Downward Continuous Casting Machine grows with your ambition.

*Ready to Transform Your Metal Casting Process?

Explore the capabilities of our casting systems. Reach out today to discuss your production requirements—let’s engineer the right solution together.

Catalog

PRODUCT CATALOG

Hydraulic shear is optional attached to the Jewelry Continuous Casting Machine

Vacuum condition is optional and the advanced technology ensure the finished product dense, uniform and shiny

CDOCAST continuous casting machine can cast your precious metals to any desired shape,rod,plate, wire..etc

Small Upward Continous Casting Machine

文章作者 cdocast_admin
发布日期 9月 18, 2020
Small Upward Continous Casting Machine无评论

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[What is Small Upward Continuous Casting Machine]

CDOCAST Small upward continuous casting machine is ideal for the production of gold, silver, copper wires, sheets, or tubes, with outstanding properties of high conductivity and good drawability. Our small upward continuous casting machine has been designed with the most up-to-date technology to give you semi-finished production with the best quality in the shortest time.

CDOCAST small upward casting machine adopts the coreless induction heating technology which can heat all metal at a rapid speed, coreless induction furnace enable melting can be 24 hrs,and also can stop any time as you like, Unlike other large-scale casting machine in the market, which must work continuously for 24 hours and non-Stopped, our small continuous manufacturing machine has strong flexibility

The small upward continuous casting machine is driven by servo motors in order to guarantee high stability in speed and high precision control. The Drawing speed is about 1000mm per minute, and the melting time usually takes about 30 minutes.

The small continuous casters adopt the Medium frequency induction heating, the strong metal stirring force can make the metal melt more fully and uniformly, due to the electromagnetic induction effect, the melting speed is rapid, the melting capacity is from 30kg-100Kg.

The most typical advantage of this small upward continuous casting machine is that it does not take up space. our continuous casting machine can cast max of four strands one time, which means each hour’s production capacity can reach up to 200kg per batch.

We also provide the wire rolling mill and wire drawing machine,

which can draw the wire to 0.2mm with the lowest investment.

It is the best choice for some customers with medium production output.

Our advisors are 24/7 online to answer any questions about this small upward continuous casting machine. Contact me to get a free proposal today.

Machine Pictures

Small Upward Continuous Casting Machine:

Operation Panel:

Parameter

Model number	CDO-UP45	CDO-UP70
Voltage	3P, 380V, 50/60Hz	3P, 380V, 50/60Hz
Power	45kw	70kw
Applicable metal	Gold, K-Gold, Silver, Copper, Brass, Bronze, and their alloys
Rated capacity	50kg copper	100kg copper
Maximum temperature	1600℃	1600℃
Temperature control range	0-1300℃	0-1300℃
Melting time	≤40 minutes	≤40 minutes
Drawing speed	1000mm per minute	1000mm per minute
Cast scope	Metals Rod, Pipe, Plate	Metals Rod, Pipe, Plate
Dimensions	12606901710mm	12606901710mm
Weight	400kg	450kg

Feature

1:Different from the cored intermediate frequency induction furnace, the CDOCAST Small upward casting machine can not only work continuously for 24 hours, but also stop production at any time, which is very suitable for small factories.

2:Charcoal is added to prevent oxidation during the entire melting & casting process to minimize metal oxidation

3:Integrated design with small size design, the whole set of equipment adds up to only about 3 cubic meters, the user no need to prepare the the speical foundation or build a platform for this small upward casting machine , Even a novice can learn to set up and use the equipment in less than half an hour.

4CDOCAST small upward casting machine Can be used for wire and tube drawing with various sizes.The crystallizer can be made to different specifications simply by changing the crystallizer to meet the customer’s needs.

5:: Suitable for continuous casting of gold, silver, K-gold as well as brass and copper.

Catalog

Machine adopts medium-frequency induction heating to make the metal melting more fully and evenly

Adopt the most advanced upward casting technology, can cast different shapes of rods depending on thecustomized mould

A bilingual or English operation panel can be set. PLC touch screen control panel can also be chosen.

Centrifugal Vacuum Casting Machine

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1Product Details1

[What is centrifugal vacuum casting machine]

This Centrifugal Vacuum Casting Machine adopts the latest Japanese crystal intermediate frequency generator, the output power is continuously adjustable, the oscillation frequency is stable with working ability of 24 hrs continuously working.

The centrifugal motor adopts a quick-start motor which can be driven immediately when the machine starts. It can reach the maximum speed in 0.2 seconds, and the speed is continuously adjustable.

CDOCAST centrifugal casting machine is equipped with perfect protection functions, including overvoltage, overheating, and water shortage protection. The switch is designed with mutual locking to prevent misoperation. Special pulse step function, mixing evenly and casting automatically, ensuring uniform product quality

CDOCAST centrifugal vacuum casting machine is specially designed for small-volume platinum, palladium, and stainless steel casting, this centrifugal casting machine comes with a vacuum pump design, thus the whole casting process will be in a vacuum condition, which can minimize the oxidation of the metal, When the charge is molten, the coil is retracted and the arm starts to spin in a high speed. During the rotating process, the metal gets out from the crucible and enters the flask.

This centrifugal vacuum casting machine is very suitable for small-volume platinum, palladium, and stainless steel casting. The maximum casting weight is 500g. Of course, we can also customize other platinum-casting machines.

Key Steps in Vacuum Centrifugal Casting:

Melting the Metal: The precious metal (e.g., gold or silver) is melted in a crucible using a high-temperature furnace.
Creating a Vacuum: The molten metal is transferred to a vacuum chamber, where air is removed to eliminate oxidation and gas entrapment.
Centrifugal Force: The vacuum chamber is rotated at high speed, generating centrifugal force that pushes the molten metal into a pre-designed mold.
Solidification: The metal cools and solidifies rapidly under the influence of centrifugal force, ensuring a dense and uniform structure.
Ejection: Once the metal has solidified, the mold is opened, and the casting is ejected for further processing or finishing.

How to Choose The Most Suitable Platinum Steel-Centrifugal Casting Machine

In case you are interested in getting a quotation for a non-standard casting machine do not hesitate to send us your technical specifications

Machine Pictures

Platinum Vacuum Centrifugal Casting Machine :

Vacuum Centrifugal Casting Machine Details:

Centrifugal Casting Machine With Infrared Temperature Control

Centrifugal Casting Machine Details

Centrifugal Casting Machine Siemens Touch Screen

Parameter

Model	CDO-CE15	CDO-CE20
Power	15kw	20kw
Voltage	3P, 380V, 50/60Hz	3P, 380V, 50/60Hz
Applicable metal	Platinum / Palladium / Steel / Stainless steel
Melting time	2min	2-3 min
Max capacity	300g (platinum)	1kg (stainless steel)
Max temperature	2000℃	2000℃
Overall Size	8006001200mm	130013001300mm
Weight	230kg	450kg

Feature

Feature of centrifugal vacuum casting machine:

Advantages of Vacuum Centrifugal Casting:

High-Quality Castings: The vacuum environment prevents oxidation and gas porosity, resulting in defect-free castings.
Precision and Detail: Centrifugal force ensures that the molten metal fills even the most intricate mold details.
Uniform Structure: The rapid cooling and centrifugal action produce a dense, uniform metal structure.
Efficiency: The process is fast and suitable for high-volume production

Catalog

Centrifugal vacuum casting machine coil rise and fall controlled by operation panel

After metal completely melted in a vacuum, the metal comes out of the crucible by spinning and into the flask.

Specially designed for small volume platinum, palladium, stainless steel casting

Metal granulator

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1Product Details1

[How to make silver,gold grains?- metal granulator]

In the world of precious and non-ferrous metal processing, achieving consistent, spherical, and high-purity metal granules is essential for a wide range of industrial and commercial applications. Our metal granulation machines are expertly engineered to meet these demands, offering unmatched precision, reliability, and flexibility for metals like gold, silver, copper, and various alloys. With capacities ranging from 2kg to 500kg, our systems are designed to serve both small-scale workshops and large industrial production facilities.

The metal granulator produced by CDOCAST is applied to produce various metal grains, such as gold, silver, K gold, copper, etc. The metal granulator includes three parts: the furnace, the water tank, and the loading frame. The molten metal will flow through the pure graphite comes with multiple at the bottom, and the whole granulation process is protected by inert gas argon or nitrogen, which minimizes the oxidation of metal.

*Tailored Design for Every Scale of Production

We understand that different production volumes require different solutions. That’s why we offer two distinct structural designs optimized for efficiency and ease of use:

– Integrated Units (2kg – 50kg):

These compact, all-in-one systems are perfect for laboratories, R&D centers, and small-batch producers. The melting and granulating components are housed within a single robust structure, saving space while ensuring seamless operation. Their user-friendly design allows for quick setup and minimal operator training.

– Platform-Based Systems (50kg – 500kg):

For medium to high-volume production, our platform-type systems provide enhanced stability and efficiency. The melting unit is positioned on an elevated platform, allowing molten metal to flow smoothly into the granulation water tank below. This separation not only improves operational safety but also facilitates maintenance and process monitoring.

*Advanced Medium-Frequency Melting & Customizable Granule Size

At the heart of each system lies our advanced medium-frequency induction melting technology. It ensures rapid, uniform heating and precise temperature control—critical for maintaining metal integrity and fluidity.

The granulation process begins once the metal is fully melted. The molten material flows through precision-drilled holes at the bottom of the crucible into a cooling water tank, forming perfectly round and uniform granules.

What sets our machines apart is the **customizable hole size** at the base of the crucible. Depending on whether you require 1mm, 3mm, or larger granules, we tailor the discharge holes to meet your exact specifications, giving you full control over the final product size.

*Specialized Solutions for Alloys & Oxidation-Sensitive Metals

Producing high-quality alloy granules requires more than standard equipment. To address this, we offer:

– Stirring Granulation Technology:

Our stirring-type granulators are specifically recommended for alloy processing. By stirring the molten metal during the heating process, these machines achieve a homogenous mixture, resulting in uniform composition and perfectly shaped alloy granules with consistent properties.

– Vacuum Granulation for Superior Results:

For metals that are prone to oxidation (such as certain copper and silver alloys), we provide vacuum granulation systems. These units operate in an oxygen-free environment, preventing oxidation and producing exceptionally bright, clean, and spherical granules. While this advanced technology represents a higher investment, it is indispensable for applications where purity and surface quality are critical.

CDOCAST can customized different metal granulator for customers according to different metals ,different capacities, and different production efficiency for each client, welcome to inquiry us now!

Machine Pictures

Small Metal Granulation Tank

2-4kg Gold Silver Grain Making Machine

6-12kg Gold Silver Grain Making Machine

20-50kg Metal Granulator with Graphite Plug

20-50kg Metal Granulating Machine with Stirring Function

10-50kg Vacuum Metal Granulator

50-500kg Platform Type Metal Granulating Machine

Structure Introduction

Structure of Gold &Silver Granulator

A gold silver granulator is a specialized machine used to produce high-quality gold granules, which are essential for applications in jewelry making, electronics, and industrial processes. One of the key components of a gold silver granulator is the **graphite crucible with a stopper rod**, which plays a critical role in controlling the flow of molten gold and ensuring consistent granule production. Below is an overview of the structure and functionality of this system.

### **1. Graphite Crucible**

The graphite crucible is the core component of the gold granulator, designed to withstand high temperatures and chemical corrosion. It is made from high-purity graphite, which offers excellent thermal conductivity and durability. The crucible is responsible for holding and melting the gold or silver

– **Material**: High-purity graphite ensures minimal contamination of the molten gold or silver.

– **Design**: The crucible is typically cylindrical with a tapered bottom to facilitate the flow of molten gold.

– **Heating**: The crucible is heated using an induction Heating furnace to melt the gold or silver at temperatures above 1,064°C (1,947°F).

### **2. Stopper Rod System**

The stopper rod is a precision mechanism that controls the flow of molten gold from the crucible into the granulation chamber. It consists of several key parts:

– **Rod Material**: The stopper rod is also made from high-quality graphite or ceramic to withstand high temperatures and resist wear.If the material is easily contaminated by graphite, we will also use boron nitride material as the plug rod

– **Sealing Mechanism**: The rod fits tightly into an opening at the bottom of the crucible, creating a seal to prevent molten gold from leaking.

– **Actuation System**: The stopper rod is connected to a manual or automated control system (e.g., pneumatic or electric actuator) that allows precise adjustment of the rod’s position. This controls the flow rate of the molten gold.

### **3. Granulation Chamber**

Below the crucible and stopper rod is the granulation chamber, where the molten gold is transformed into granules. This chamber typically includes:

– **Cooling Medium**: Water is mostly used to rapidly cool the molten gold droplets, solidifying them into granules.

– **Collection Tray**: A tray or container collects the solidified granules for further processing. CDOCAST granulator adopt the automatic lifting up tray to collect the granules, which can greatly reduce the cost the the production labour

### **4. Control System**

The gold granulator is equipped with a control system to regulate the melting and granulation process. This system includes:

– **Temperature Control**: Ensures the gold is melted at the optimal temperature.

– **Inert Gas Flow Control**: Adjusts the Inert Gas Flow Rate to get the most shinning and fine granules.

– **Automation**: Advanced granulators may feature automated controls for precise and repeatable operation.

### **5. Advantages of the Graphite Crucible with Stopper Rod**

– **Precision**: The stopper rod allows precise control over the flow of molten gold, ensuring uniform granule size.

– **Durability**: Graphite components are highly resistant to thermal and chemical degradation.

– **Efficiency**: The system enables continuous and efficient production of high-quality gold granules.

### **Conclusion**

The graphite crucible with a stopper rod is a critical component of a gold and Silver granulator, enabling precise control over the melting and granulation process. Its robust design and high-temperature resistance make it ideal for producing consistent, high-quality gold granules. By understanding the structure and functionality of this system, manufacturers can optimize their granulation processes and achieve superior results.

Parameter

Model	CDO-MG10	CDO-MG25	CDO-MG35	CDO-MG45	CDO-MG55
Power	10kw	25kw	35kw	45kw	55kw
Voltage	380V(220V), 3 phase, 50/60Hz	380V, 3 phase, 50/60Hz
Applicable metal	Gold, K-Gold, Silver, Copper, Brass, Bronze
Max temperature	1600℃	1600℃	1600℃	1600℃	1600℃
Melting time	2-5mins	5-8mins	10-15mins	10-20mins	20-30mins
Granulating time	About 5mins	About 10mins	About 15mins	About 20mins	About 30mins
Casting method	Gravity granulation	Gravity granulation	Gravity granulation	Gravity granulation	Gravity granulation
Max capacity	Gold: 2-4 kg Silver: 1-2 kg	Gold: 8-10 kg Silver: 4-5 kg	Gold: 40 kg Silver: 20 kg	Gold: 60 kg Silver: 30 kg	Gold: 100 kg Silver: 50 kg
Overall size	1000500965mm	11505001100mm	161015501930mm	161015501930mm	161015501930mm
Weight	150kg	270kg	600kg	700kg	750kg

Catalog-for-Metal-Granulator

Feature

1. The granulator is used to produce high-quality precious metal particles and alloy particles with uniform color. The finished beads have no oxidation, high density, and no pores, with especially good spherical surfaces, uniform particles, and stable color.

2. The metal granulator comes with Inert gas protection system, which minimizes oxidation in the process of metal melting and casting, especially suitable for precious metals and alloy metals that are easily oxidized. It also reduces the loss of smelted metal and increases the life of the crucible.

3. Applied with the Intermediate frequency induction heating technology, rapid melting speed, it takes about 15 minutes to melt one batch, and the casting time is about 15 minutes, which means that you will get high-quality metal grains within half an hour.

4. The temperature can reach 1600°C, the granulation time is 20-30 minutes, and the melting and granulation are completed in one. After the casting is completed, the pelletizing barrel is easy to take out.

5. Pure graphite crucible comes with quartz jacket as protection, the multihole design at the bottom can act as a breaker to make the molten metal cast into grains. What is more, it only takes 5 minutes to replace new crucible, which is very convenient for the operator

6. Special cooling water to prevent adhesion of metal particles and make particles more evenly formed.

7. Metal granulator melting chamber and water tank can be designed separately or as an integrated unit. If there is not enough space for the user, we will recommend the integrated unit, which takes up less space.

8. The detailed and complete self-diagnosis system and protection function ensure that the equipment failure rate is low.

9. After the melt is completed, the casting speed is fast, making the metal particles smooth and smooth without sand holes.

10. CDOCAST provides 2 years of after-sales service, which minimizes customers’ concerns about after-sales service.

Buyer Guider

*Why Choose Our Granulation Equipment?

– Uniform Granules: Every batch produces smooth, round, and size-consistent metal particles.

– High Efficiency: Medium-frequency melting ensures quick processing with low energy consumption.

– Durability & Low Maintenance: Built with industrial-grade materials for long-term reliability.

– Customization Options: From discharge hole sizing to overall configuration, we adapt the machine to your needs.

Ideal Applications:

✔ Precious metal refining and recycling

✔ Jewelry and decorative item manufacturing

✔ Electronic component production

✔ Metal powder and additive manufacturing feedstock

✔ Catalysts and chemical processing

*Let Us Help You Find the Right Solution

We know that every customer has unique production requirements and budget considerations. Whether you need a standard model for copper granulation or a vacuum system for high-purity silver granules, our team is ready to assist you in selecting the ideal equipment.

Whether you need a standard machine for copper granulation or a vacuum system for high-purity gold granules, we are here to support your production goals with cutting-edge technology and expert guidance.

*Contact us today* for a detailed consultation or request a personalized quotation. Let us help you optimize your metal granulation process with machines designed for quality, efficiency, and reliability.

Key Differences and Technical Essentials of Crucibles in Karat Gold vs. Pure Gold Granulation Processes

In precious metal refining and processing, granulation is a critical step for producing standardized raw materials such as gold and silver granules. This process involves melting the metal and allowing it to flow through fine holes at the bottom of a crucible, then cooling and solidifying it into uniform particles in water. However, due to significant differences in the physical properties of gold with varying purities—particularly between karat gold and pure gold—the design and use of the crucible, the core component of granulation equipment, must be tailored accordingly. Understanding these differences is essential for improving production efficiency, ensuring product quality, and minimizing losses.

1. Karat Gold vs. Pure Gold: The Root of All Differences

To grasp why crucibles differ, it’s important to first understand the fundamental characteristics of these two materials.

Karat Gold:

Complex Composition: Karat gold is an alloy of gold and other metals (such as silver, copper, zinc, or nickel). Its purity is much lower than 24K pure gold, with common variants including 18K (75% gold) and 14K (58.5% gold).
Higher and Broader Melting Range: The addition of alloying elements raises the melting point of karat gold above that of pure gold (1064°C), and melting occurs over a range rather than at a fixed point.
Poor Fluidity: Molten karat gold has high viscosity and significantly poorer fluidity compared to pure gold, due to oxide formation, slag, and inherent physical properties.
Prone to Oxidation and Slag Formation: Alloy metals oxidize more easily at high temperatures, forming slag that can clog small holes.

Pure Gold:

High Purity:Typically refers to 24K gold or high-purity gold with Au99.9% or higher, containing minimal impurities.
Fixed Melting Point: Has a distinct melting point (approximately 1064°C) and remains stable once molten.
Excellent Fluidity:Molten pure gold is watery and exhibits exceptional fluidity and ductility, allowing it to pass easily through very fine holes.
High Stability: Resists oxidation and produces almost no slag, resulting in a clean melt.

2. Key Differences in Crucible Design: Hole Size and Number

Based on these properties, crucible design focuses on addressing two core challenges: enabling viscous karat gold to flow smoothly and ensuring highly fluid pure gold flows evenly and controllably.

Feature	Karat Gold Granulation Crucible	Pure Gold Granulation Crucible
Graphite Stopper Configuration	It is recommended to equip a stopper rod. Due to the poor fluidity of karat gold, the stopper rod should only be lifted to initiate granulation after the metal has fully melted. If granulation is attempted without a stopper rod while the metal is still melting, the remaining small amount of metal in the later stage may fail to drain completely due to insufficient gravitational force overcoming its own viscosity and flow resistance, potentially resulting in material retention and loss	The use of a stopper rod is flexible and optional. Thanks to the excellent fluidity of pure gold, multi-hole crucibles are typically equipped with a stopper rod to precisely control the start and end of granulation. However, when processing large pieces of material, the stopper rod can be removed to allow a “free-flow” mode, where the metal flows out automatically while melting, ensuring complete drainage without residue
Hole Size	Typically φ1.2-2.0mm	Typically φ0.8mm
Number of Holes	Small to medium capacity (e.g., 2-4kg): Prefer single-hole crucibles with a plug. Multiple holes reduce pressure per hole, hindering flow due to high surface tension. Larger capacities (e.g., 6kg+): Can use more holes to improve efficiency while ensuring flow.	Commonly uses “small holes, multiple holes” design. Excellent fluidity allows high throughput with uniform granules.
Taper of Graphite Bottom Plug	Steeper taper. A sharper angle creates a smoother flow path, reducing adhesion and resistance for viscous karat gold, preventing clogging.	Standard taper. Excellent fluidity ensures perfect granulation without the need for a steep taper.

3. Additional Technical and Operational Considerations

Temperature Control

Karat Gold: Must be heated significantly above its melting point to reduce viscosity caused by high-melting-point components like silver and copper. Heating must be consistent and sustained throughout granulation, with slight power increases toward the end to compensate for heat loss and prevent clogging. However, excessive temperatures should be avoided to minimize oxidation and evaporation of alloy elements.
Pure Gold: Only requires heating slightly above its melting point to maintain liquidity.
Core Principle:Sustained heating throughout the granulation cycle—not just during melting—is critical for karat gold to avoid clogging.

4. Melt Treatment

Karat Gold:Fluxing agents (e.g., borax) can be added during melting to help gather oxides and impurities into slag, which can be skimmed off to improve melt purity and reduce clogging risks.
Pure Gold:Generally requires no fluxing agents.

5. Post-Processing

Karat Gold:Granules may have rougher surfaces and may require additional acid washing or polishing to remove oxides.
Pure Gold: Granules are typically bright, uniform, and consistent in quality.

6. Conclusion

In summary, selecting the right crucible for karat gold versus pure gold granulation is not merely a matter of size but a deep adaptation to the alloy’s physical properties.

For karat gold, the key to preventing clogging lies in the synergy between hole size and number, combined with a steeper Graphite Bottom Plug taper. The goal is to balance metal weight (determined by capacity and liquid level) with high surface tension. For small to medium capacities, a “large hole, single hole” strategy concentrates pressure to ensure flow. For larger capacities, more holes can be added to balance efficiency and flowability.

For pure gold, the inherent advantages of the material are leveraged through a “small hole, multiple holes” design to achieve both high efficiency and premium quality output.

Choosing the correct crucible and implementing appropriate temperature and operational controls are essential for ensuring smooth, efficient, and cost-effective operation in precious metal granulation production lines.

Catalog

Graphite crucible can be customized to suit different needs, the porous design of the bottom acts as a crusher to cast the molten metal into pellets

The integrated design of the power cabinet and furnace facilitates operation and mobility and reduces space requirements

Argon gas to protect the metal from oxidation during the melting process, and the finished product is bright and free of impurities

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Metal Flake Making Machine

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1Product Details1

[What is the Metal Flake Making Machine]

CDOCAST Metal Flake Making Machine is specially designed to make gold, silver, copper, platinum, etc., metal flakes, which greatly improves refining efficiency. It includes a melting chamber, casting chamber, collection bucket, lifting forklift, operating panel, and ladder. It can melt precious metal alloys and process them into metal flakes≤ 0.1mm, which is convenient for subsequent chemical dissolution.

[Advantage of Metal Flake Making Machine]

1. Doubled Purification Efficiency
After smelting, the material is directly formed into flakes ≤0.1mm in size by a centrifugal system, facilitating subsequent dissolution in chemical reagents and significantly improving purification efficiency.

2. Virtually No Loss
Sealed operation and inert gas protection isolate oxygen throughout the process, preventing high-temperature oxidation.

3. Low Production Cost
The machine is simple to operate and can be completed in one step. Direct recycling reduces material loss.

Machine Pictures

Gold Flake Making Machine

Tilting Type Platinum Flake Making Machine

Parameter

Parameter of Metal Flake Making Machine

Model number	CDO-FC50	CDO-FC70
Power source	Three phase 380V±10%, 50/60Hz	Three phase 380V±10%, 50/60Hz
Power	50kw	70kw
Max capacity	100 KG Gold	20 KG Platinum
Melting time	10-30 min	10-15 min
Max temperature	1250℃	2000℃
Protective gas pressure	0.2 MPa(argon or nitrogen)
Air pressure	0.6-0.8 MPa	0.6-0.8 MPa
Temperature control	PID	PID
Cooling water	Water pressure: 0.2-0.4 MPa, flow rate: 3m³/h
Dimension	210023552573mm	210020002575mm
More specifications can be customized

Feature

1. This machine prevents oxidation and wear of metals caused by high temperatures during centrifugal rotary blade.

2. It effectively improves product quality and significantly reduces production costs.

3. It improves refining quality, resolves recycling issues, and increases reactor efficiency.

4. This machine offers simple operation, reliable quality, and safe production.

5. Medium-frequency heating is harmless to the human body.

Catalog

Siemens PLC control panel can be set up in multiple languages,all operations can be done with touching of the screen

Applicable to the production of various precious metals flakes

Sealed inert gas melting environment to reduce oxidation loss

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Vacuum Powder Making Machine

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1Product Details1

[what is Vacuum Powder Making Machine-Water Metal Atomizer]

CDOCAST Water Metal Atomizer

Water atomization powder making equipment is a process that uses high-speed water flow to break molten metal into fine droplets, which are then rapidly cooled and solidified into metal powder. This technology is widely used in powder metallurgy, 3D printing, coating materials, and other fields. The following is a detailed description of its principle, equipment composition, and key features:

The basic principle of water atomization powder production

1. Preparation of molten metal
-Heating a metal or alloy above its melting point to form a uniform molten liquid metal.

2. High-pressure water flow impact fragmentation
-Molten metal flows out through a guide tube and is impacted by high-pressure (usually 10-50 MPa) water jets, causing the liquid flow to be sheared and torn into tiny droplets.
-The kinetic energy of water overcomes the surface tension of metals to achieve atomization.

3. Rapid cooling and solidification
-The atomized metal droplets are rapidly cooled in water (with a cooling rate of up to 10 ^ 3~10 ^ 6 K/s) to form solid powder.
-The cooling rate affects the microstructure of the powder, such as grain size and phase composition.

4. Powder collection and post-treatment
-Obtain the target particle size of metal powder through steps such as filtration, drying, and sieving.

The main components of water atomization powder equipment

1. Melting system
-Induction furnace or electric arc furnace: used for melting metals, requiring precise temperature control.
-Thermal insulation ladle: stores molten metal and stabilizes flow rate.

2. Atomization system
-High pressure water pump: Provides a stable high-pressure water source.
-Atomizing nozzle: The core component designed to affect the flow pattern (such as annular, laminar, or turbulent) and atomization efficiency.
-Diversion tube: controls the flow rate and flux of molten metal.

3. Cooling and collection system
– Atomization chamber: A closed space where metal droplets and water are mixed and cooled.
– Circulating water cooling device: Prevents excessive water temperature from affecting the atomization effect.

4. Drying and screening system
-Vacuum dryer: removes surface moisture from powder.
-Vibration screen or air classifier: classified by particle size.

Application Fields

1. Powder metallurgy
-Manufacturing mechanical parts such as gears and bearings (iron-based, copper based powder pressing and sintering).

2. Additive Manufacturing (3D Printing)
-Metal powder used for selective laser melting (SLM) (requiring subsequent spheroidization treatment).

3. Thermal spray coating
-Prepare wear-resistant and anti-corrosion coatings (such as nickel based alloy powder).

4. Magnetic materials
-Production of soft magnetic alloy powder (such as iron silicon alloy).

Technical Challenges and Development Trends

1. Challenges
– Control oxidation: by adding antioxidants or post-treatment reduction.
– Improve sphericity: Combine centrifugal atomization or secondary treatment (such as plasma spheroidization).

2. Trends
– Compound atomization: Water-gas combined atomization balances cost and performance.
– Nano powder preparation: ultra-high pressure water atomization combined with rapid cooling technology.
– Intelligent control: real-time monitoring of atomization parameters (water pressure, temperature, flow).

If you need to know more about the powder-making process or specific equipment parameters of a certain type of metal (such as stainless steel, titanium alloy), you can continue to ask questions

Machine Pictures

Small metal powder making tank

10kg 20kg 30kg 50kg Metal Vacuum Powder Making Machine

Platinum Steel Tilting Type Powder Making Machine

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50kg 100kg 150kg 200kg Steel Iron Copper Aluminum Powder Making Machine

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5kg Metal Vacuum Gas Atomization Powder Making Machine

→Learn more about the powder making

Introduction

Water Atomizer/Vacuum Metal Powder Making Machine

The process of making metal powder by water atomization has a long history. In ancient times, people poured molten iron into water to make it explode into fine metal particles, which were used as raw materials for making steel; There are also people who pour molten lead water directly into the water to make lead pills. The process principle of making alloy powder by water atomization is the same as that of making water-burst metal liquid in ancient times, but modern technology has greatly improved the efficiency of crushing and manufacturing particles

To make metal alloy powder by high-pressure water atomization method, first, melt the raw metal in the melting furnace, and then the molten gold must be overheated for about 50 degrees and then injected into the tundish. Start the high-pressure water pump before the injection of metel solution, and let the high-pressure water atomization device start the workpiece. The metel liquid in the tundish enters the atomizer through the nozzle at the bottom of the tundish through the beam flow.

The atomizer is the key part for producing metal alloy powder by high-pressure water mist. The atomizer is related to the metal powder-making efficiency, Under the action of the high-pressure water from the atomizer, the molten metal liquid is continuously broken into fine droplets, which fall into the cooling liquid in the water tank and solidify into alloy powder。

In the traditional high-pressure water atomization process for producing metal powder, the metal powder can be collected continuously, but a small amount of metal powder is lost with the atomized water， In the process of producing alloy powder by high-pressure water atomization, the atomized product is concentrated in the atomization device, and then precipitated and filtered (it can be dried if necessary, and generally sent directly to the next process。

A complete set of equipment for producing metal alloy powder by high-pressure water atomization is composed of the following parts:

1:For the melting part, the medium frequency induction melting furnace is the best choice. The capacity of the furnace depends on the processing capacity of the metal powder, we have furnace capacity from 2kg to 100kg per batch.

2: The atomization part, the equipment in this part is non-standard equipment, which should be designed and arranged according to the site conditions of the manufacturer, mainly including the tundish: when the tundish is produced in winter, it needs to be preheated;

Atomizer: the atomizer will come from high-pressure water, The high-pressure water of the pump impacts the metal liquid from the tundish at a predetermined speed and angle, breaking it into metal droplets.

Under the same water pump pressure, the amount of fine metal powder after atomization is related to the atomization efficiency of the atomizer; the atomization cylinder: it is the place where the alloy powder is atomized, crushed, cooled and collected.

3:In order to prevent the ultra-fine alloy powder from being lost with water, the obtained alloy powder should be left for a period of time after atomization, and then placed in the powder collecting box.

4:Post-processing part: powder collecting box: used to collect the atomized alloy powder and separate and remove excess water; drying furnace: dry the wet alloy powder with water;

screening machine: sieve the alloy powder, Out-of-specification coarser alloy powder can be re-melted and atomized as the return material

Feature

1: Adopt the electromagnetic induction heating principle with the feature of rapid melting time and high production efficiency， The melting temperature rises quickly, the production efficiency is high, and the particle size distribution is good;

2: With the ability to 24-hour continuously work, can meet the needs of customers with different production output

3: Come with vacuum Pump design, the whole granulation is carried out in the vacuum environment to minimize oxidation

4: CDOCAST vacuum powder making machine can be used for both granulation and pulverizing. with One machine you can do both purposes

5: This Vacuum powder making machine covers a very small production area and is easy to operate. No engineer needs to sent to do the on-site installation .

6: The Vacuum powder making machine with different capacity can be customized according to customer’s demand, and the maximum capacity can reach 100 kg per batch.

7:The brand-new integrated furnace body structure design helps to improve the performance of powder making.

8:The metal smelting process can be protected by inert gas to reduce oxidation;

Parameter

Integrated Type Powder Making Machine

Model	CDO-PM20	CDO-PM25	CDO-PM30	CDO-PM40	CDO-PM45	CDO-PM50
Power	20 KW	25 KW	30 KW	40 KW	45 KW	50 KW
Voltage	380V, 3 phase, 50/60Hz
Melting time	10 min	15 min	18 min	20 min	25 min	30 min
Casting time	2 min	3 min	5 min	8 min	10 min	15 min
Capacity	5 kg gold	10 kg gold	15 kg gold	20 kg gold	30 kg gold	50 kg gold
Pump power	15 KW	15 KW	15 KW	23 KW	23 KW	23 KW
Water pressure	15Mpa	15Mpa	15Mpa	20Mpa	20Mpa	20Mpa
Flow rate	20L/min	20L/min	20L/min	30L/min	30L/min	30L/min
Dimension	136011352000 mm				145012902000 mm
Weight	680 kg	700 kg	720 kg	750 kg	1000 kg	1100 kg
Application metal	Gold、Silver、Copper、Aluminum、Zinc、Tin、etc.

Platform Type Powder Making Machine

Model		CDO-LPM50	CDO-LPM75	CDO-LPM90
Hydraulic metal furnace	Power	50 KW	75 KW	90 KW
	Voltage	380V, 3 phase, 50/60Hz
	Capacity	50 kg gold	100 kg gold	150 kg gold
Platform	Dimension	442.5 m	452.5 m	452.5 m
	Capacity	5 kg gold	10 kg gold	15 kg gold
Powder size		200-1000 mesh	200-1000 mesh	200-1000 mesh
Hydraulic pump		Inlet pressure: ≥0.1 MPA, Outlet pressure: 17MPA, Flow rate: 170L/min, Speed: 405r/min
Casting method		Gravity granulation	Gravity granulation	Gravity granulation
Applacation metal		Iron, stainless steel, platinum and other high temperature metals

Powder Characteristic

Water atomized powder is a metal or alloy powder prepared by high-pressure water atomization technology. It is widely used in powder metallurgy, 3D printing, magnetic materials, welding materials and other fields. Its core features are as follows:

1. Particle morphology and structure
-Irregular shape: During the water atomization process, the molten metal droplets are rapidly cooled under the impact of high-pressure water flow, forming irregular shapes (such as spherical, flaky or dendritic) with high surface roughness.
-Surface oxide layer: Due to the contact between water and high-temperature metal, an oxide layer is easily formed on the surface of the powder (subsequent reduction treatment is required).
-Satellite powder and hollow powder: Some particles may form “satellite powder” due to collision and adhesion, or “hollow powder” may be formed due to the failure of internal gas to escape.

2. Particle size distribution
-Wide range: The particle size of water atomized powder is usually distributed between 10~150μm, which can be controlled by adjusting parameters such as water pressure and nozzle design.
-Suitable for coarse powder needs: Compared with gas atomized powder (finer and more spherical), water atomization is more suitable for scenes with looser particle size requirements (such as MIM metal injection molding).

3. Chemical composition and properties
-High oxygen content: Oxygen is easily introduced during the water atomization process (H₂O decomposition), and the oxygen content needs to be reduced by vacuum annealing or hydrogen reduction (for example, the oxygen content of iron-based powder can be reduced to less than 0.3%).
-Alloy flexibility: A variety of alloy powders can be prepared (such as stainless steel, tool steel, copper alloy, etc.), but highly active metals (such as titanium and aluminum) require special protection.

4. Process efficiency and cost
-High production efficiency: Water atomization equipment is simple, suitable for large-scale continuous production, and the cost is significantly lower than gas atomization.
-Low energy consumption: No inert gas protection is required, only high-pressure water pumps and cooling systems are required, and energy consumption costs are lower.

5. Application
-Powder metallurgy: automotive parts (gears, bearings), cemented carbide premixed powder.
-Magnetic materials: Preparation of Sendust soft magnetic powder.
-Welding and coating: used as welding rods and thermal spraying materials.
-3D printing (some areas): Binder jetting (Binder Jetting) with low requirements for powder sphericity.

6. Comparison of advantages and disadvantages

Advantage	Disadvantage
Low cost, suitable for large-scale production	Irregular powder shape, poor fluidity
Can be used for high melting point alloys	High oxygen content, requires subsequent treatment
Simple operation	Low fine powder yield (<20μm)

7. Comparison with other atomization technologies
-Gas atomization: finer powder, high sphericity, low oxygen content, but high cost, suitable for high-end fields such as aerospace, 3D printing, etc.
-Centrifugal atomization: uniform particles but complex equipment, mostly used for specific alloys (such as titanium powder).
-Water atomization: the king of cost-effectiveness, suitable for industrial applications that are not demanding on cost and shape.

The core competitiveness of water atomized powder lies in low cost and high production capacity, especially suitable for fields with high tolerance for powder shape and oxygen content. If higher purity or sphericity powder is required, gas atomization or plasma atomization process can be considered. The actual selection needs to be comprehensively evaluated in combination with the application scenario, cost budget and post-processing capabilities.

Catalog