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Durable Copper melting crucible BN/BU 200KG 300KG 400KG 500KG

Short Description:

Copper smelting crucible is a high-performance container specially designed for high-temperature smelting of copper and its alloys. It is widely used in metallurgy, casting, metal processing and other fields.  The crucible has excellent high temperature resistance and corrosion resistance, and maintains stable physical and chemical properties in high temperature environments, ensuring the production of high-quality copper products.


Product Detail

FAQ

Product Tags

Faster Heat Conduction · Longer Service Life

Premium Thermal Shock Resistant Graphite Crucible

PRODUCT FEATURES

Rapid Melting

High thermal conductivity graphite material improves thermal efficiency by 30%, significantly reducing melting time.

graphite crucibles
graphite crucbiles

Superior Thermal Shock Resistance

Resin-bonded technology withstands rapid heating and cooling, allowing direct charging without cracking.

Exceptional Durability

High mechanical strength resists physical impact and chemical erosion for a longer service life.

grapthite crucibles

TECHNICAL SPECIFICATIONS

 

Graphite / % 41.49
SiC / % 45.16
B/C / % 4.85
Al₂O₃ / % 8.50
Bulk density / g·cm⁻³ 2.20
Apparent porosity / % 10.8
Crushing strength/ MPa (25℃) 28.4
Modulus of rupture/ MPa (25℃) 9.5
Fire resistance temperature/ ℃ >1680
Thermal shock resistance / Times 100

 

No Model H OD BD
RA100 100# 380 330 205
RA200H400 180# 400 400 230
RA200 200# 450 410 230
RA300 300# 450 450 230
RA350 349# 590 460 230
RA350H510 345# 510 460 230
RA400 400# 600 530 310
RA500 500# 660 530 310
RA600 501# 700 530 310
RA800 650# 800 570 330
RR351 351# 650 420 230

 

PROCESS FLOW

Precision Formulation

1. Precision Formulation

High-purity graphite + premium silicon carbide + proprietary binding agent.

.

Isostatic Pressing

2.Isostatic Pressing

Density up to 2.2g/cm³ | Wall thickness tolerance ±0.3m

.

High-Temperature Sintering

3.High-Temperature Sintering

SiC particle recrystallization forming 3D network structure

.

Rigorous Quality Inspection

5. Rigorous Quality Inspection

Unique tracking code for full lifecycle traceability

.

Surface Enhancement

4.  Surface Enhancement

Anti-oxidation coating → 3× improved corrosion resistance

.

Safety Packaging

6. Safety Packaging

Shock-absorbent layer + Moisture barrier + Reinforced casing

.

PRODUCT APPLICATION

Suitable for most non-ferrous metals

melting aluminium

Melt Aluminium

melting copper

Melt Copper

melting gold

Melt Gold

WHY CHOOSE US

  • Customized Services:
    We offer crucibles in various materials and specifications tailored to meet your specific smelting needs. Our professional technical support and after-sales service ensure worry-free usage.
  • Cost-Effectiveness:
    By optimizing our manufacturing processes, we provide competitive prices without compromising quality. The long-life design reduces replacement frequency, lowering overall operational costs.
  • Environmental Protection:
    We prioritize sustainable development by using environmentally friendly materials and processes. Our old crucibles can be recycled, minimizing environmental impact.

Why Partner with Us?

When you choose us, you get more than a product—you get a partner.

  • Expertise: Decades of experience in the foundry industry.
  • Customization: Tailored solutions to meet your specific needs.
  • Support: From selection to installation, we’re with you every step of the way.

Material:

Our Cylindrical Crucible is crafted from isostatically pressed silicon carbide graphite, a material that offers exceptional high-temperature resistance and excellent thermal conductivity, making it an essential tool for industrial smelting applications.

  1. Silicon Carbide (SiC): Silicon carbide is known for its extreme hardness and excellent resistance to wear and corrosion. It can withstand high-temperature chemical reactions, offering superior stability even under thermal stress, which reduces the risk of cracking during sudden temperature changes.
  2. Natural Graphite: Natural graphite delivers exceptional thermal conductivity, ensuring rapid and uniform heat distribution throughout the crucible. Unlike traditional clay-based graphite crucibles, our cylindrical crucible uses high-purity natural graphite, which improves heat transfer efficiency and reduces energy consumption.
  3. Isostatic Pressing Technology: The crucible is formed using advanced isostatic pressing, ensuring uniform density with no internal or external defects. This technology enhances the strength and crack resistance of the crucible, extending its durability in high-temperature environments.

Performance:

  1. Superior Thermal Conductivity: The Cylindrical Crucible is made from high thermal conductivity materials that allow for rapid and even heat distribution. This enhances the efficiency of the smelting process while reducing energy consumption. Compared to conventional crucibles, thermal conductivity is improved by 15%-20%, leading to significant fuel savings and faster production cycles.
  2. Excellent Corrosion Resistance: Our silicon carbide graphite crucibles are highly resistant to the corrosive effects of molten metals and chemicals, ensuring the stability and longevity of the crucible during prolonged use. This makes them ideal for smelting aluminum, copper, and various metal alloys, reducing maintenance and replacement frequency.
  3. Extended Service Life: With its high-density and high-strength structure, the lifespan of our cylindrical crucible is 2 to 5 times longer than traditional clay graphite crucibles. The superior resistance to cracking and wear extends operational life, lowering downtime and replacement costs.
  4. High Oxidation Resistance: A specially formulated material composition effectively prevents oxidation of the graphite, minimizing degradation at high temperatures and further extending the crucible's life.
  5. Superior Mechanical Strength: Thanks to the isostatic pressing process, the crucible boasts exceptional mechanical strength, retaining its shape and durability in high-temperature environments. This makes it ideal for smelting processes requiring high pressure and mechanical stability.

Product Advantages:

  • Material Benefits: The use of natural graphite and silicon carbide ensures high thermal conductivity and corrosion resistance, providing lasting performance in harsh, high-temperature environments.
  • High-Density Structure: Isostatic pressing technology eliminates internal voids and cracks, significantly improving the crucible’s durability and strength during extended use.
  • High-Temperature Stability: Capable of withstanding temperatures up to 1700°C, this crucible is ideal for various smelting and casting processes involving metals and alloys.
  • Energy Efficiency: Its superior heat transfer properties reduce fuel consumption, while the environmentally friendly material minimizes pollution and waste.

Choosing our high-performance Cylindrical Crucible will not only enhance your smelting efficiency but also reduce energy consumption, extend equipment lifespan, and lower maintenance costs, ultimately improving production efficiency.

At our company, we pride ourselves on delivering Crucible For Metal Melting products that meet the high demands of the casting and metallurgical industries. With extensive project management experience and a personalized, one-to-one service model, we ensure smooth and effective communication, truly understanding your business needs. As the world economy becomes increasingly integrated, the casting industry faces both challenges and opportunities. By embracing teamwork, innovation, and quality-first principles, we are confident in providing you with premium crucibles at competitive prices. Together, we can shape a brighter future under the values of higher, faster, and stronger cooperation.

Crucible Applications and Furnace Compatibility

Our crucibles are versatile and suitable for various types of furnaces, including:

  • Coke furnaces
  • Oil furnaces
  • Natural gas furnaces
  • Electric furnaces
  • High-frequency induction furnaces

These crucibles are engineered from high-quality graphite carbon material, making them ideal for melting a wide range of metals, including:

  • Gold, silver, copper, and aluminum
  • Lead, zinc, and medium carbon steel
  • Rare metals and other non-ferrous metals

The combination of highly conductive material, dense structure, and low porousness ensures fast thermal conduction, making your melting process more efficient.

 

graphite crucibles

FAQS

Q1: Can The Crucible Cover reduce energy costs?
A: Absolutely! It reduces heat loss, cutting energy consumption by up to 30%.

Q2: What furnaces are compatible?
A: It’s versatile—suitable for induction, gas, and electric furnaces.

Q3: Is graphite silicon carbide safe for high temperatures?
A: Yes. Its thermal and chemical stability makes it perfect for extreme conditions.

 Q4: How to prevent crucible cracking?

Never charge cold material into a hot crucible (max ΔT < 400°C).

Cooling rate after melting < 200°C/hour.

Use dedicated crucible tongs (avoid mechanical impact).

Q5: How to prevent crucible cracking?

Never charge cold material into a hot crucible (max ΔT < 400°C).

Cooling rate after melting < 200°C/hour.

Use dedicated crucible tongs (avoid mechanical impact).

Q6: What is the minimum order quantity (MOQ)?

Standard Models: 1 piece (samples available).

Custom Designs: 10 pieces (CAD drawings required).

Q7: What is the lead time?
⏳ In-Stock Items: Ships within 48 hours.
⏳ Custom Orders: 15-25 days for production and 20 days for mould.

Q8: How to determine if a crucible has failed?

Cracks > 5mm on inner wall.

Metal penetration depth > 2mm.

Deformation > 3% (measure outer diameter change).

Q9: Do you provide melting process guidance?

Heating curves for different metals.

Inert gas flow rate calculator.

Slag removal video tutorials.

Case Study #1

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Case Study #2

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Testimonials

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- Jane Doe

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- John Doe

Schedule a Consultation Now!

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