Large crucible

Material and Construction

Our large crucibles are made from premium-grade silicon carbide (SiC) and graphite composites, offering superior thermal conductivity, mechanical strength, and resistance to thermal shock. These materials are chosen for their ability to handle intense heat and corrosive environments, making the crucibles ideal for melting metals such as:

• Aluminum
• Copper
• Brass
• Steel
• Precious metals (Gold and Silver)

Each large crucible is precision-manufactured through isostatic pressing to ensure uniform thickness and consistency, which results in better heat distribution and extended service life.

Thermal and Mechanical Performance

Large crucibles are designed to withstand extreme temperatures, often reaching up to 1600°C, depending on the specific metal being processed. Their high thermal conductivity ensures faster heating times and energy efficiency, which is essential for large-scale industrial applications.

In addition, their low coefficient of thermal expansion ensures that the crucible resists cracking or warping during rapid temperature changes, making them highly durable for repeated use in heavy-duty operations.

Corrosion and Slag Resistance

When melting large volumes of metals, the crucible is often exposed to corrosive slags and metal oxides that can deteriorate lower-quality materials. Our large crucibles are specially designed with high corrosion resistance, ensuring minimal wear even when melting reactive metals or alloys. The crucible’s smooth inner surface also prevents the buildup of metal residue, ensuring that the molten metal flows freely without sticking, which improves the overall pourability and reduces metal waste.

Capacity and Applications

Our large crucibles are available in various sizes, with capacities ranging from 50 kg to over 500 kg, depending on the specific furnace and metal melting requirements. These crucibles are designed to be compatible with electric induction furnaces, gas-fired furnaces, and resistance furnaces, offering flexibility across different metal processing industries.

Applications include:

• Foundries and Metal Casting: Ideal for large-scale melting of metals such as aluminum, copper, and steel in foundries that require high throughput and consistent quality.
• Steel Production: Large crucibles are critical for handling molten steel during the alloying and casting processes.
• Precious Metal Refining: Perfect for refining operations that deal with gold, silver, and platinum in large quantities.
• Recycling Industries: Used for melting scrap metals and reprocessing them into usable ingots or components.

Extended Durability and Lifespan

Our large crucibles are built to endure the harsh conditions of continuous metal melting operations. With a lifespan of up to 100 melt cycles depending on the metal type and furnace conditions, they offer long-term cost savings by reducing the frequency of replacements. The robust structure also ensures that the crucible remains structurally sound, even after repeated exposure to high heat and mechanical stress.

Key Features

• High Thermal Conductivity: Ensures rapid heating and even distribution of temperature.
• Low Thermal Expansion: Minimizes the risk of cracking under rapid temperature changes.
• Corrosion and Slag Resistance: Protects the crucible from chemical reactions and slag buildup during melting.
• Large Capacity: Available in sizes suitable for melting 50 kg to 500 kg or more of metal.
• Compatibility with Multiple Furnace Types: Suitable for use in electric induction, gas-fired, and resistance furnaces.
• Long Service Life: Built to withstand multiple melt cycles, reducing operational downtime and replacement costs.

Why Choose Our Large Crucibles?

As a leading supplier of crucibles for industrial applications, we prioritize quality, durability, and performance in every product. Our large crucibles are engineered to enhance productivity and ensure consistent results in high-volume melting processes. Whether you are running a metal foundry, precious metal refinery, or recycling plant, our large crucibles offer the capacity and reliability needed to meet your operational goals.

1.Store crucibles in a dry and cool place to prevent moisture absorption and corrosion.
2.Keep crucibles away from direct sunlight and heat sources to prevent deformation or cracking due to thermal expansion.
3.Store crucibles in a clean and dust-free environment to prevent contamination of the interior.
4.If possible, keep crucibles covered with a lid or wrapping to prevent dust, debris, or other foreign matter from entering.
5.Avoid stacking or piling crucibles on top of each other, as this can cause damage to the lower ones.
6.If you need to transport or move crucibles, handle them with care and avoid dropping or hitting them against hard surfaces.
7.Periodically inspect the crucibles for any signs of damage or wear, and replace them as needed.

How can we guarantee quality?

We guarantee quality through our process of always creating a pre-production sample before mass production and conducting a final inspection before shipment.

Why should you buy from us not from other suppliers?

Choosing us as your supplier means having access to our specialized equipment and receiving professional technical consultation and excellent after-sales service.

What value added services does your company provide?

In addition to custom production of graphite products, we also offer value-added services such as anti-oxidation impregnation and coating treatment, which can help to extend the service life of our products.