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500KG Industrial Crucibles and aluminum melting crucible

Short Description:

Our Industrial Crucibles are designed to meet the diverse and demanding needs of modern metal melting processes, including aluminum, brass, copper, and other non-ferrous metals. Made from premium silicon carbide graphite and clay graphite materials, these crucibles are built to withstand high temperatures, chemical corrosion, and thermal shock, making them indispensable in foundry operations and industrial applications.


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FAQ

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Crucible Quality

Withstands Myriad Smelts

PRODUCT FEATURES

Superior Thermal Conductivity

The unique blend of silicon carbide and graphite ensures rapid and uniform heating, significantly cutting down on melting time.

 

silicon carbide graphite crucible
silicon carbide graphite crucible

Extreme Temperature Resistance

The unique blend of silicon carbide and graphite ensures rapid and uniform heating, significantly cutting down on melting time.

Durable Corrosion Resistance

The unique blend of silicon carbide and graphite ensures rapid and uniform heating, significantly cutting down on melting time.

silicon carbide graphite crucible

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 O D H ID BD
78 IND205 330 505 280 320
79 IND285 410 650 340 392
80 IND300 400 600 325 390
81 IND480 480 620 400 480
82 IND540 420 810 340 410
83 IND760 530 800 415 530
84 IND700 520 710 425 520
85 IND905 650 650 565 650
86 IND906 625 650 535 625
87 IND980 615 1000 480 615
88 IND900 520 900 428 520
89 IND990 520 1100 430 520
90 IND1000 520 1200 430 520
91 IND1100 650 900 564 650
92 IND1200 630 900 530 630
93 IND1250 650 1100 565 650
94 IND1400 710 720 622 710
95 IND1850 710 900 625 710
96 IND5600 980 1700 860 965

PROCESS FLOW

 premium silicon carbide
Isostatic Pressing
High-Temperature Sintering
brass melting crucible
brass melting crucible
brass melting crucible

1. Precision Formulation

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

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2.Isostatic Pressing

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

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3.High-Temperature Sintering

SiC particle recrystallization forming 3D network structure

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4.  Surface Enhancement

Anti-oxidation coating → 3× improved corrosion resistance

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5. Rigorous Quality Inspection

Unique tracking code for full lifecycle traceability

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6. Safety Packaging

Shock-absorbent layer + Moisture barrier + Reinforced casing

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PRODUCT APPLICATION

GAS MELTING FURNACE

Gas Melting Furnace

Induction melting furnace

Induction Melting Furnace

Resistance furnace

Resistance Melting Furnace

WHY CHOOSE US

Key Features and Benefits

  1. High Temperature Resistance
    Our Industrial Crucibles are capable of withstanding temperatures ranging from 400°C to 1600°C, making them ideal for melting metals like aluminum, brass, and copper. These crucibles maintain their structural integrity and resist deformation under extreme heat, ensuring reliable performance throughout their service life.
  2. Superior Thermal Conductivity
    The use of silicon carbide (SiC) and graphite ensures excellent thermal conductivity, which speeds up the melting process and reduces energy consumption. Whether you’re using an Aluminium Melting Crucible, Brass Melting Crucible, or Copper Melting Crucible, the efficient heat transfer in these crucibles enhances productivity and reduces operational costs.
  3. Corrosion and Chemical Resistance
    Our Industrial Crucibles are highly resistant to chemical attacks from molten metals, acids, and other corrosive substances. This ensures that the crucibles remain durable and maintain their performance over extended periods, even in harsh industrial environments.
  4. Thermal Shock Resistance
    With a low thermal expansion coefficient, our crucibles can handle rapid temperature changes without cracking, making them ideal for applications requiring quick heating and cooling cycles. This feature is particularly important in high-temperature processes such as metal casting and foundry operations.
  5. Long Service Life
    Compared to ordinary crucibles, our Industrial Crucibles have a service life that is 2-5 times longer, thanks to their high density, strength, and resistance to wear. Their durability reduces the frequency of replacements, leading to lower maintenance costs and improved operational efficiency.
  6. Smooth Interior Surface
    The smooth inner walls of the crucibles prevent molten metal from adhering to the surface, ensuring better flow and casting performance. This results in cleaner, more efficient metal casting with less waste.

Advanced Manufacturing and Material Composition

Our crucibles are produced using advanced technology, including isostatic pressing and high-pressure molding, to ensure isotropy, high density, and uniform compactness. The use of imported raw materials and innovative formulas enhances their high-temperature stability, oxidation resistance, and overall performance.

  • Silicon Carbide Graphite Crucibles: Known for their superior thermal conductivity and corrosion resistance, these crucibles are particularly suited for applications involving high-temperature metal melting, such as Aluminum Casting Crucible or Copper Melting Crucible.
  • Clay Graphite Crucibles: A cost-effective alternative that still provides excellent performance in terms of heat resistance and durability, ideal for non-ferrous metal casting and foundry operations.

Partner with Us

At our company, we believe in “Quality First, Honoring Contracts, and Standing by Reputations.” Our commitment to delivering the best Industrial Crucibles ensures that our customers receive superior products that meet their exacting standards. We warmly welcome businesses worldwide to establish long-term partnerships with us. Whether you’re in the foundry industry, metallurgy, or any other field that requires high-performance crucibles, we are here to provide the most effective and competitive solutions.

 

Choosing the right Industrial Crucibles for your metal melting processes can significantly enhance efficiency, reduce energy consumption, and extend equipment life. Our crucibles, made from high-quality silicon carbide graphite and clay graphite materials, offer the perfect balance of durability, thermal performance, and chemical resistance. Contact us today to learn more about how our crucibles can benefit your industrial operations and explore opportunities for long-term collaboration.

FAQS

Q1: What are the advantages of silicon carbide graphite crucibles compared to traditional graphite crucibles?

✅ Higher Temperature Resistance: Can withstand 1800°C long-term and 2200°C short-term (vs. ≤1600°C for graphite).
✅ Longer Lifespan: 5x better thermal shock resistance, 3-5x longer average service life.
✅ Zero Contamination: No carbon penetration, ensuring molten metal purity.

Q2: Which metals can be melted in these crucibles?
▸ Common Metals: Aluminum, copper, zinc, gold, silver, etc.
▸ Reactive Metals: Lithium, sodium, calcium (requires Si₃N₄ coating).
▸ Refractory Metals: Tungsten, molybdenum, titanium (requires vacuum/inert gas).

Q3: Do new crucibles require pre-treatment before use?
Mandatory Baking: Slowly heat to 300°C → hold for 2 hours (removes residual moisture).
First Melt Recommendation: Melt a batch of scrap material first (forms a protective layer).

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.


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