Isostatic Graphite Ingot Mould for Gold and Silver Casting

Delmer Group’s isostatic graphite ingot mould is a casting consumable for professional gold and silver melting, refining, bullion production and jewellery-manufacturing workflows. Molten metal is poured into the mould cavity and allowed to solidify into an ingot or bar shape.

Isostatic graphite is selected for its uniform structure, thermal stability and machinability. A clean, undamaged cavity can help produce repeatable ingot geometry and support metal release when the mould is correctly selected, prepared and maintained. Actual casting results depend on the metal, mould dimensions, heating and pouring procedure, equipment and operator practice.

Need a particular ingot weight or cavity size? Contact Delmer with your metal type, target ingot weight, required dimensions and casting method so the suitable mould configuration can be confirmed.

Key Features

• Isostatic graphite body: uniform material structure for a consistent machined cavity.
• Gold and silver casting: intended for compatible precious-metal ingot and bar casting applications.
• Thermal stability: graphite is suited to high-temperature casting when used within the correct process limits.
• Machined cavity: cavity geometry determines the resulting ingot shape and dimensions.
• Reusable tooling: service life depends on handling, thermal cycling, metal and process conditions, inspection and maintenance.
• Custom requirements: contact Delmer to confirm availability for specific dimensions and ingot-weight targets.

Applications

• Gold ingot and bar casting
• Silver ingot and bar casting
• Precious-metal refining and recycling workflows
• Bullion production and jewellery-manufacturing stock preparation
• Use as casting tooling with compatible melting and casting equipment

Material and Casting Process

Isostatic graphite is formed by applying pressure uniformly from different directions during manufacture. Its material properties can make it suitable for precision-machined casting tooling. Mould selection should account for target ingot weight, cavity volume and dimensions, metal density, pouring method and the capacity of the associated melting or casting equipment.

This mould is a passive tool. It does not provide induction heating, vacuum, or protective-atmosphere control. Where required, these functions must be provided by the associated equipment and process.

Technical Specifications

Important: Do not assume a standard ingot weight from the product image. Gold and silver have different densities; the same cavity volume will not produce the same mass for both metals. Confirm cavity dimensions, capacity, material grade and compatibility before purchase.

How to Choose the Correct Graphite Ingot Mould

1. Specify the metal: gold, silver or another proposed metal/alloy for compatibility review.
2. Specify the target ingot: provide target mass and external dimensions.
3. Check the equipment: confirm the melting furnace capacity and the casting method, such as gravity or tilt pouring.
4. Confirm the mould: obtain the cavity dimensions and material details before placing the order.

Handling and Maintenance

• Inspect the mould for cracks, chips or cavity damage before use.
• Keep the cavity clean and dry; avoid contamination from oil, moisture or debris.
• Handle carefully because graphite can be brittle and may chip if dropped or struck.
• Avoid abrupt temperature changes and follow the process and equipment supplier’s preparation, preheating and cooling instructions.
• Allow the mould and casting to cool according to the approved process before demoulding.
• Replace moulds showing damage or wear that could affect safe operation or casting quality.

Frequently Asked Questions

What is a graphite ingot mould used for?
A graphite ingot mould provides a cavity in which molten metal solidifies into an ingot or bar. This product is intended for gold and silver casting applications, subject to confirmation of size and compatibility.

Can this mould be used for both gold and silver?
The product is intended for gold and silver casting. Confirm the required cavity dimensions and process compatibility before ordering. Because the metals have different densities, the same cavity volume results in different ingot masses.

Does the mould provide vacuum or inert-gas protection?
No. The mould is a passive casting tool. Any vacuum, induction heating or protective atmosphere must be provided by compatible casting equipment.

Are dimensions and ingot capacity standard?
Specific cavity dimensions and capacity should be confirmed with Delmer. Provide the target metal, ingot weight and dimensions when requesting a quotation.

Can a custom mould be requested?
Contact Delmer with the required cavity geometry, ingot dimensions, target mass, metal and casting method. Custom availability must be confirmed.

Request Technical Information

Before ordering, ask Delmer to confirm mould dimensions, graphite grade, cavity capacity, compatibility with your process and availability. For a faster recommendation, include your metal type, required ingot mass, target dimensions and melting/casting equipment.

Contact Delmer Group for technical information →

Choose the Right Casting Equipment

This graphite ingot mould is a passive tool for compatible gravity or tilt-pour ingot casting; it is not the water-cooled die used in a continuous casting system. For suitable batch melting and pouring, explore Delmer static and tilting induction melting furnaces and Delmer gold and silver bar furnaces. If your production requires continuous rods, strips or profiles, compare the process with Delmer continuous casting systems; these systems use process-specific tooling, so do not assume this ingot mould is compatible. Confirm the target metal, ingot weight, cavity dimensions and casting method before purchase.

Explore other graphite and ceramic consumables or contact Delmer to check mould and equipment selection.

MACROBRILL is a high-performance polishing media specially formulated to overcome the limitations of traditional stainless steel balls like AISI 420. Designed to work in harmony with dedicated shining compounds for various metals, it completely eliminates oxidation issues, ensuring no transfer of oxidized particles during the polishing process. This makes post-polishing acid treatments unnecessary and significantly reduces water discharge—making your process cleaner and more sustainable.

With its exceptional hardness and low specific gravity, MACROBRILL delivers an ultra-fine, mirror-like finish without causing the “orange peel” texture commonly seen in conventional polishing. Its unique composition allows safe use on delicate, ultra-thin components such as intricate gold jewelry, enabling both polishing and smoothing in one gentle yet effective step. Most importantly, it retains the metal's natural tone and enhances its visual appeal without altering its original characteristics.

Why Choose MACROBRILL?

✔️ Zero oxidation, zero contamination

✔️ Eliminates the need for acid-based cleaning

✔️ Perfect for fragile and detailed pieces

✔️ Polishes and smooths in one process

✔️ Eco-conscious with low water usage

✔️ Maintains natural metal color and integrity

Key Features of MACROBRILL Polishing Media

💧 Water-Based Use : Easily used with water—no harsh chemicals required.

✨ Enhanced Shine with VILUX : Achieves superior brilliance when paired with VILUX compound.

🧼 Easy to Clean : Simply rinse with water for effortless maintenance and reuse.

🌟 No Oxidation : Guarantees a clean, bright finish without any discoloration or dark tones.

🍊 Smooth Finish – No Orange Peel : Delivers ultra-fine results without surface texturing, even in extended vibratory cycles.

⏳ Long-Term Durability : Minimal wear over time—ideal for high-efficiency polishing.

🧲 Non-Magnetic Material : Not retrievable with magnets if dropped, encouraging careful handling.

Vitrified Ceramic Jacket for Graphite Crucibles

The Delmer Vitrified Ceramic Jacket is a precision-engineered protective sleeve designed to extend the operational life of graphite crucibles used in induction melting furnaces. Manufactured from high-grade vitrified ceramic, it provides structural reinforcement, thermal insulation, and resistance to mechanical stress during repeated heating and cooling cycles.

Key Benefits

• Extended Crucible Life: Reduces wear and cracking on graphite crucibles, lowering replacement frequency and total cost of ownership.
• Thermal Stability: Withstands high-temperature induction melting environments without deformation or spalling.
• Structural Reinforcement: Absorbs mechanical shock and thermal expansion stress, protecting the crucible body during tilting and pouring operations.
• Chemical Resistance: Vitrified ceramic surface resists flux contamination and metal splash, maintaining a clean melting environment.
• Precision Fit: Available in matched sizes (2kg, 5kg, 10kg, 20kg) to fit standard Delmer graphite crucibles without modification.

Specifications

• Material: High-density vitrified ceramic
• Available Sizes: 2kg | 5kg | 10kg | 20kg (matched to crucible capacity)
• Finish: Glazed ceramic exterior for smooth, non-porous surface
• Compatible With: Delmer graphite crucibles used in iD Series and iD Pro induction melting furnaces
• Application: Gold, silver, platinum, copper, and other precious and non-ferrous metal melting

Applications

Ideal for jewellery manufacturers, precious metal refiners, casting houses, and industrial foundries operating induction melting furnaces. The ceramic jacket is a recommended consumable for any operation seeking to reduce crucible breakage, minimize downtime, and maintain consistent melt quality across production runs.

Ordering Information

Select the size that matches your graphite crucible capacity. For bulk orders or custom sizing requirements, contact Delmer Group directly for a quotation.

Related Furnaces and Consumables

Select the ceramic jacket only after confirming that its dimensions and design match the graphite crucible and intended furnace. Explore Delmer static and tilting induction melting furnaces for suitable batch-melting applications and Delmer gold and silver bar furnaces for bullion-production workflows. For continuous production of rods, strips or profiles, review Delmer continuous casting systems as a process option; this jacket is not a universal accessory for every system, and compatibility must be confirmed.

Compare the graphite crucible supplied with a vitrified ceramic jacket and the graphite crucible without jacket. Browse graphite, ceramic and metal-finishing consumables or contact Delmer with the crucible size and furnace model for confirmation.

Delmer graphite crucible without jacket for suitable furnace-based melting of gold, silver and other precious or non-ferrous metals. This version is supplied without an external ceramic jacket. Confirm the crucible material grade, dimensions, capacity and furnace compatibility before ordering.

Key Features

• Graphite crucible supplied without an outer ceramic jacket.
• For suitable gold, silver and precious/non-ferrous metal melting applications.
• Useful where the furnace setup and operating procedure are specified for an unjacketed crucible.
• Compatibility depends on furnace type, dimensions, temperature and handling procedure.

Product Details

What Is It Used For?

A graphite crucible holds the metal charge during melting in a compatible furnace. Select the crucible based on the metal, charge size, furnace design and the supplier's operating recommendations. Do not assume every graphite grade is suitable for every metal or heating method.

Without Jacket or With Ceramic Jacket?

This version is supplied without an outer jacket. If your application requires one, see the Delmer graphite crucible with vitrified ceramic jacket. A replacement outer component may be available as the vitrified ceramic jacket.

Localized Product Terms

For Italian searches, relevant wording includes crogiolo in grafite per fusione di oro e argento and crogiolo in grafite senza camicia ceramica. For German-speaking buyers, relevant terms include Graphittiegel zum Schmelzen von Gold und Silber and Graphittiegel ohne Keramikmantel. These are localized search terms; confirm the exact material grade and dimensions for your application.

Related Delmer Equipment

Browse graphite and ceramic consumables and gold and silver melting furnaces, or contact Delmer to check compatibility.

FAQs

Does this product include a ceramic jacket?

No. This version is supplied without an outer ceramic jacket.

Can it be used for gold and silver?

It is intended for suitable precious-metal melting applications, but compatibility depends on the graphite grade, furnace and operating conditions. Confirm these details before ordering.

How do I choose the correct crucible?

Share your furnace type, required metal charge, dimensions and operating conditions with Delmer so the correct specification can be checked.

Related Furnaces and Process Selection

Choose a crucible according to the furnace manufacturer's requirements, the metal charge, capacity and operating conditions. Explore Delmer static and tilting induction melting furnaces for suitable batch-melting applications and Delmer gold and silver bar furnaces for bullion-production workflows. For continuous production of rods, strips or profiles, review Delmer continuous casting systems as an alternative process; compatibility with this standalone crucible is not implied and must be confirmed for the specific system.

If an outer jacket is required, compare the graphite crucible with vitrified ceramic jacket and the separate vitrified ceramic jacket. Browse the full graphite and ceramic consumables collection or contact Delmer to confirm dimensions and compatibility.

Delmer graphite crucible with vitrified ceramic jacket for furnace-based melting of gold, silver and other precious or non-ferrous metals. The crucible body is described as graphite; the external protective component is the vitrified ceramic jacket. Confirm crucible capacity, furnace dimensions and operating conditions before ordering.

Key Features

• Graphite crucible supplied with an external ceramic protective jacket.
• Designed for suitable precious-metal melting applications, including gold and silver.
• Capacity options: 2 kg, 5 kg, 10 kg and 20 kg (confirm the applicable metal and furnace conditions).
• Suitable selection depends on furnace type, temperature, metal charge and handling procedure.

Product Details

What Is the Ceramic Jacket For?

The ceramic jacket is a separate outer protective component around the graphite crucible. It is not the same material as the graphite crucible body. Always follow the equipment supplier's handling instructions and confirm compatibility with your furnace before use.

With Jacket or Without Jacket?

Choose this version if you require the graphite crucible supplied with a ceramic jacket. For the version without an outer jacket, see the Delmer graphite crucible without jacket. A replacement jacket may be available separately: vitrified ceramic jacket.

Localized Product Terms

For Italian buyers, this product may be described as crogiolo in grafite con camicia ceramica or crogiolo in grafite con camicia ceramica vetrificata. For German-speaking buyers, common search wording includes Graphittiegel mit Keramikmantel and Graphittiegel mit keramischem Schutzmantel. These terms describe the graphite crucible and its ceramic jacket; exact specifications should be confirmed before purchase.

Related Delmer Equipment

Browse graphite and ceramic consumables and gold and silver melting furnaces, or contact Delmer to confirm capacity and furnace compatibility.

FAQs

Is the crucible body vitrified?

The product is described as a graphite crucible with a vitrified ceramic jacket. The term “vitrified” refers to the jacket, not the graphite body.

Which capacities are available?

Listed options are 2 kg, 5 kg, 10 kg and 20 kg. Confirm the required capacity for your metal and furnace setup.

Can I use it in any melting furnace?

No universal compatibility is implied. Confirm dimensions, heating method, temperature range and the furnace manufacturer's guidance before use.

Related Furnaces and Process Selection

This graphite crucible with a vitrified ceramic jacket must be matched to the furnace design, capacity and operating instructions. Explore Delmer static and tilting induction melting furnaces for suitable batch-melting applications and Delmer gold and silver bar furnaces for bullion-production workflows. For continuous production of rods, strips or profiles, see Delmer continuous casting systems as a process option; crucible, jacket and system compatibility must be confirmed for the specific model. The link is for process selection, not a universal compatibility claim.

Compare the graphite crucible without jacket, the separate vitrified ceramic jacket and the wider graphite and ceramic consumables collection. Confirm capacity, dimensions, metal and furnace model with Delmer before ordering.