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Vacuum Gold Bar Making Machine

The most popular vacuum gold bar making machine for sale, Inquiry Now!

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Craft Purity & Precision: The Future of Bullion Casting with CDOCAST

In the world of precious metals, every gram counts. CDOCAST’s advanced vacuum Gold Silver Bar casting machines are engineered for those who demand perfection — delivering flawless, high-purity gold and silver bars with uncompromised surface quality and minimal metal loss.

Vacuum Gold Bar Making Machine

Whether you’re producing investment-grade bars or custom ingots, the CDOCAST vacuum gold bar casting machine offers unmatched flexibility and precision.

Batch Capacity: Cast up to 4 x 1kg ingots per cycle or a single 15kg large bullion bar. Custom sizes are also supported.
Vacuum + Argon Protection: Melt and cast in an oxygen-free environment to eliminate oxidation, porosity, and surface defects such as water ripples.
Maximized Yield: With near-zero precious metal loss, our systems help protect your margins and enhance metal recovery.
Scalable Power: From 75kW for standard 15kg bars to custom configurations — the right power for your output needs.

Silver Bullion Casting — Speed, Shine, Consistency

Produce mirror-finish silver bars that stand out in the market. CDOCAST’s silver bullion vacuum casting machines combine German IGBT induction technology with high-vacuum performance for industrial-grade reliability.

Multi‑Size Output: Cast 1kg, 5kg, 15kg, 30kg, or 1000oz bars in every batch.
Power‑Driven Efficiency: Choose from 25kW to 90kW models — a 90kW unit produces three 5kg silver bars per cycle.
High‑Vacuum Pumps: Equipped with German‑imported vacuum pumps to ensure brilliant surface quality and higher density.
Rapid Cycle Times: Melt in 6–15 minutes, cool in 8–15 minutes — produce 10kg of silver bars in under 25 minutes per cycle.

Engineered for Long‑Term Value

High‑Life Graphite Molds: Each custom mold lasts 200+ casting cycles, reducing downtime and tooling costs.
Energy‑Efficient Operation: Advanced induction heating ensures stable performance with lower operating costs.
Global Client Trust: Trusted by mints, refineries, and precious metal producers worldwide for performance-driven bullion solutions.

Whether you’re expanding production or launching a new bullion product line, CDOCAST delivers the technology, reliability, and finish that investors recognize and respect.

CDOCAST — Where Innovation Meets Precious Metals Mastery

Why Industry Leaders Choose CDOCAST:
– *Intuitive Operation: Minimal training required for expert-level results
– *Consistent Quality: Perfectly finished bars with mirror-like surfaces
– *Durable Performance: Engineered for long-term reliability
– *Rapid ROI: High throughput with minimal operational overhead

*Ready to transform your bullion production? Contact our engineering team to discover how our vacuum casting solutions can elevate your operation.

Machine Pictures

1KG Vacuum Gold Bar Making Machine with Auto Lid Opening

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2KG Vacuum Gold Bar Making Machine with Auto Lid Opening

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4KG Vacuum Gold Bar Making Machine with Auto Lid Opening

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Details

12.5KG Vacuum Gold Bar Making Machine with Auto Lid Opening

10kg/15kg/20kg/30kg Gold Silver Ingot Vacuum Casting Machine

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Tunnel Furnace for Automatic Vacuum Casting 1000oz 30Kg Silver Bullion

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*Production Process

Parameter

Model number	CDO-F1	CDO-F2	CDO-F4
Power source	Three phase 380V±10%, 50/60Hz	Three phase 380V±10%, 50/60Hz	Three phase 380V±10%, 50/60Hz
Power	25kw	35kw	45kw
Control system	PLC/Manual	PLC/Manual	PLC/Manual
Applicable metal	Gold and silver	Gold and silver	Gold and silver
Melting time	About 6 mins	About 7 mins	About 7-8 mins
Casting time	About 6-7 mins	About 7-8 mins	About 7-10 mins
The Max capacity	1 pc 1 kg bar	2 pcs 1 kg bar	4 pcs 1 kg bar
Dimension	9507501070mm	11008801100mm	15209001080mm
Weight	About 200 kg	About 300 kg	About 550 kg
Protective gas	Nitrogen or argon	Nitrogen or argon	Nitrogen or argon
Vacuum pump	40 m³/hour	40 m³/hour	40 m³/hour
Heating technology	Induction heating	Induction heating	Induction heating
Auto lid opening and closing	Yes	Yes	Yes

Click the link to get the mould size

Feature

Unlock Effortless Bullion Production with CDOCAST’s Intelligent Vacuum Casting Systems

Experience the next generation of precision casting technology with CDOCAST’s advanced vacuum bullion machines. Engineered for both exceptional results and remarkable ease of use, our systems transform raw materials into market-ready gold and silver bars with unmatched efficiency.

1. Seamless Automation from Start to Finish
Our PLC touch screen interface puts complete control at your fingertips. Simply load pre-weighed material into the graphite mold, secure the chamber door, and press start. The system executes a fully automated cycle, delivering perfectly cast bars with zero manual intervention.

2. Advanced Thermal Management for Superior Surface Quality
Featuring custom-shaped induction coils with integrated cooling technology, our proprietary process ensures uniform temperature distribution. The intelligent cooling system actively regulates mold temperature throughout the cycle, producing consistently brilliant, flawlessly flat surfaces that meet the highest market standards.

3. Optimized Production Cycles for Maximum Efficiency
Each casting sequence combines precisely calibrated melting and cooling phases. With melting cycles of 6-12 minutes and optimized cooling protocols, we balance production speed with mold longevity – delivering superior throughput while protecting your investment in tooling.

4. Engineered for Continuous Industrial Performance
Built for round-the-clock operation, our machines maintain consistent performance under demanding production schedules. The robust construction and refined thermal management ensure reliable output for high-volume manufacturing environments.

5. Self-Sufficient Installation and Operation
Forget complex onsite engineering. Every system includes comprehensive video guidance for installation and commissioning. Each unit undergoes rigorous factory testing, arriving ready to produce quality results from day one

6. Confidence-Backed Warranty Protection
We stand behind every system with a comprehensive Two-year warranty, ensuring your complete peace of mind and investment security.

Technical Deep Dive

The surface of my 9999 material is not smooth, despite the material specification. Could this be due to an issue with the quality of bar casting machine? For a definitive answer and solution, please contact our technical specialists or click the link below to learn more.

Unveiling How Our Cooling System Achieves a Mirror Effect on the Bar

FAQ

1. Do you provide operational manuals and instructional videos? How is installation and commissioning arranged?

A: Yes. Every machine is accompanied by comprehensive bilingual (English and Chinese) manuals, featuring detailed step-by-step guides for straightforward installation and commissioning. Should you require technical assistance, we can dispatch our engineers for on-site support at a service fee of USD 150 per day, exclusive of flight tickets, visa arrangements, and accommodation.

2. What is the service life of your graphite molds?

A: We use only high-density, premium graphite blocks to craft our molds, ensuring superior durability compared to standard market options. Under normal operating conditions, each mold is guaranteed for 200+ casting cycles without loss of quality.

3. How does your after-sales service work?

A: All CDOCAST machines include a 2-year comprehensive warranty. During this period, we begin with free remote video diagnostics. If any components are faulty, we replace them at no cost. Should the machine fail due to manufacturing defects, we offer a full machine replacement—free of charge.

4. How long does one production cycle take?

A: Melting typically takes 6–8 minutes, depending on bar size and material. For a standard 1kg gold or silver bar, melting is complete in about 6 minutes. We recommend a minimum 8-minute cooling phase—longer cooling not only ensures better surface finish but also extends your mold’s service life.

5. Do you provide operational manuals and instructional videos? How is installation and commissioning arranged?

6. Can any purity of gold or silver produce a mirror finish

A: A brilliant, mirror-like surface requires high-purity material—at least 99.9% fine gold or silver. Lower purity levels will result in a less reflective finish and may affect overall bar appearance.

7. Can I use my own water chiller?

A: Yes—as long as your chiller meets our technical specifications for flow rate and temperature control, you’re welcome to use it. We also offer compatible CDOCAST water chillers optimized for our systems.

8. How can I add custom engravings or stamps to gold or silver bars?

A: We offer hydraulic pressing systems capable of imprinting custom designs, logos, or text onto bars. Additionally, we provide casting Bar die design and production services. For serial numbering or fine markings, we supply laser marking or logo stamping machines tailored to your needs.

9. Why might the surface of my cast bars lack the smoothness shown in your videos?

A: Several technical factors—such as mold temperature, cooling rate, or material purity—can affect surface finish. Our technical team has prepared an in-depth article detailing common issues and solutions:

[Click the Link to the Technical Article Here]

10. Can this machine be used for platinum or palladium Bar Casting?

A: No. Platinum and palladium have significantly higher melting points and require specialized furnace engineering. We recommend our Tilting-Type Vacuum Bar Casting Furnace, specifically designed for high-temperature precious metals. Learn more here:

[Click the Link to Tilting Furnace Product Page]

11. Is inert gas required during operation? What is the gas consumption rate?

A: Yes. We recommend using argon or nitrogen for optimal oxidation prevention during melting. The gas flow is program-controlled and activated only at critical stages—not continuously—ensuring efficiency and cost-effectiveness. Typical consumption ranges between X L/min and Y L/min, depending on bar size and process phase.

CDOCAST vs. Others.

Component

Other Companies

CDOCAST

Control Panel

Unbranded touchscreen with unresponsive controls over time and no quality assurance.

Imported Siemens touchscreen & PLC control system for full automation and durability. Casting data can be viewed, saved, and adjusted directly on the screen.

Indicator Light

No status lights.

Clear visual status indicators for standby, operation, and alarm modes.

Mold Size

1kg mold: 135*72.5mm
4kg mold: 270*135mm

Larger cooling plates enable bigger mold sizes:
1kg mold: 176*90mm
4kg mold: 280*144mm
Substantially higher casting capacity

Graphite Mold

Lower grade graphite (e.g., -5), inexpensive but prone to damage, requiring frequent replacement

High purity -6 grade graphite: Superior hardness, elasticity, and compression resistance → Highly durable and heat-resistant.

Lid

Manual opening, labor-intensive.

Fully automated pneumatic lid for effortless operation.

Machine Housing

Welded assembly with standard paint that chips easily.

High-purity, one-piece aluminum casing – lightweight with excellent heat dissipation. Heat-resistant baked enamel finish for superior aesthetics & durability.

Spare Parts

Standard domestic or refurbished components.

Premium imported parts: Siemens touchscreens, Infineon IGBT modules (Germany), power boards, etc.

Thermocouple

Standard Type K, max temperature 1300°C, easily damaged.

Specialized Type S/R for precious metals, withstands up to 1600°C, high quality and reliability

Vacuum Pump

Typically 63m³/h pumps without safety enclosures, posing risks. Some use small built-in pumps with poor vacuum results & difficult repair.

Powerful 100m³/h pump for flawless, dense castings without pores. Includes safety enclosure & easy to read pressure gauge.

Catalog

Product Catalog

New design Vacuum Gold Bar Making Machine

The Vuum Bar Making Machine is equipped with an automatic cover opening and closing device, which does not require manual opening and closing of the furnace cover. Easy and safe operation.

High Quality Graphite molds can be customized according to different bar size,and we have professional engineer team to provide the design drawing