Small metal powder making tank

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

→Click here to watch the video

Platinum Steel Tilting Type Powder Making Machine

Click the photo to watch the video

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

→Click here to watch the video

5kg Metal Vacuum Gas Atomization Powder Making Machine

→Learn more about the powder making

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

Integrated Type Powder Making Machine

Platform Type Powder Making Machine

Click the link to get the crucible size

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 a 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.

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

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.

Q1. What information do you need to provide a quotation and recommend a suitable model?

Prior to issuing a quotation, we require the following key parameters:

*Target Metal: The specific metal or alloy you intend to atomize (e.g., gold, silver, copper, iron).

*Daily Production Capacity: Your required output in weight per day.

*Particle Size Distribution: The desired powder size range (e.g., 100-200 mesh).

*Particle Shape (Sphericity): Requirements for particle morphology.

*Oxygen Content: Maximum allowable oxygen content in the final powder.

*Application of powder: For refining? 3D print? PM sintering or other purposes?

Providing these details is essential for an accurate proposal. If necessary, we can also produce sample powders for your evaluation.

Q2. What are the water requirements and consumption for the machine?

*Water Quality: We recommend using deionized or purified water. Tap water contains high levels of minerals, which can cause scaling, block water lines, and potentially contaminate the final product.

*Cooling Water Circuit: The cooling water for the furnace’s mechanical section is supplied by a closed-loop chiller system. This is an internal cycle with only minimal evaporation loss, requiring only periodic top-ups.

*Atomization Water Circuit: The machine is equipped with a water tank for the high-pressure atomization pump. This water is used to disintegrate the molten metal stream. The resulting water-powder mixture is then separated by a filter press.

*Water Consumption & Reuse: The atomization process is the primary consumer of water. The discharged water will contain simple impurities and residual metal particles. For water recycling, we recommend purchasing an optional filtration unit.

Q3. What is the power consumption profile of the machine?

The power load varies by process stage:

*Melting Phase: ~45 kW for approximately 20 minutes (requires chiller operation at ~10 kW).

*Holding & Atomizing: ~10 kW for molten metal holding, plus the high-pressure pump at ~55 kW for atomization.

*Separation & Drying: The filter press operates at ~5 kW, followed by the dryer at ~5 kW.

Q4. What certifications do your machines carry? Do you have UL certification?

All our equipment is standardly certified to the CE marking, demonstrating compliance with European health, safety, and environmental standards. We do not provide UL certification as a standard offering due to its prohibitively high cost, lengthy certification cycle, and general impracticality for custom, special-purpose machinery.

Q5. Can the copper powder size be adjusted? How is this controlled?

Yes, particle size is adjustable through a combination of two key parameters:

1.  *Water Pressure: Adjusted via the control switch on the high-pressure pump.
2.  *Molten Metal Flow Rate: Controlled by the nozzle aperture size at the bottom of the tundish (flow control funnel).

By fine-tuning these variables, you can influence the resulting particle size distribution.

Q6. What metals can the CDOCAST atomizer process?

We offer different models for various metal groups:

*Integrated Atomizer: Ideal for non-ferrous metals like gold, silver, copper, brass, bronze etc.

*Tilting-Type Atomizer: Recommended for high-melting-point precious metals such as platinum and palladium.

*Platform-Type Atomizer: Necessary for stainless steel and iron. These metals require a larger atomization chamber to handle the higher melting temperatures and larger volumes.

Q7. What is the typical particle size range of the produced powder?

The machine typically produces powder in the range of 100 to 1000 mesh. It is important to note that the atomizer produces a distribution of particle sizes within a set range. If a specific, tight cut (e.g., 150-200 mesh) is required, the powder must be processed through a separate screening or classifying machine after atomization.

Q8. What factory space is required for installation?

Space requirements depend on the machine type:

*Integrated Atomizer: Compact and simple. A room of approximately 4m x 6m is usually sufficient.

*Platform-Type Atomizer: Requires a larger workshop of about 5m x 10m with sufficient height and an overhead crane for handling.

Q9. What is the difference between Water and Gas Atomization, and which type is your machine?

*Water Atomization: Uses high-pressure water jets to break up the molten metal stream.

*Powder Characteristics: Irregularly shaped particles, higher oxygen content.

*Our Machine Type: The machine described in this document is a Water Atomization system.

*Gas Atomization: Uses inert gas (e.g., Nitrogen, Argon) jets to disintegrate the melt.

*Powder Characteristics: Highly spherical powder, low oxygen content.

*Application: Essential for applications like 3D Printing (Additive Manufacturing).

We offer both technologies. Please consult with our technical team before ordering to select the correct atomization method for your application.

Product Catalog