Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec feugiat ultricies vulputate. Suspendisse quis lacinia erat, eu tincidunt ante.
Graphite crucible with lid for gold melting
PRODUCT FEATURES
Rapid Melting
High thermal conductivity graphite material improves thermal efficiency by 30%, significantly reducing melting time.
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.
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
1. Precision Formulation
High-purity graphite + premium silicon carbide + proprietary binding agent.
.
2.Isostatic Pressing
Density up to 2.2g/cm³ | Wall thickness tolerance ±0.3m
.
3.High-Temperature Sintering
SiC particle recrystallization forming 3D network structure
.
5. Rigorous Quality Inspection
Unique tracking code for full lifecycle traceability
.
4. Surface Enhancement
Anti-oxidation coating → 3× improved corrosion resistance
.
6. Safety Packaging
Shock-absorbent layer + Moisture barrier + Reinforced casing
.
PRODUCT APPLICATION
Suitable for most non-ferrous metals
Melt Aluminium
Melt Copper
Melt Gold
WHY CHOOSE US
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:Where can I obtain product and price information?
Send us an inquiry via email or contact us on the provided chat applications. We will respond promptly with detailed information.
Q8:How is shipping handled?
We transport goods to the port via truck or load them in containers directly at our factory.
Q9:Are you a factory or a trading company?
We are a direct-operated factory with advanced machinery and a 15,000 square meter workshop, employing around 80 skilled workers.
Case Study #1
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec feugiat ultricies vulputate. Suspendisse quis lacinia erat, eu tincidunt ante.
Case Study #2
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec feugiat ultricies vulputate. Suspendisse quis lacinia erat, eu tincidunt ante.
Testimonials
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec feugiat ultricies vulputate. Suspendisse quis lacinia erat, eu tincidunt ante. Pellentesque aliquet feugiat tellus, et feugiat tortor porttitor vel. Nullam id scelerisque magna. Curabitur placerat sodales placerat. Nunc dignissim ac velit vel lobortis.
- Jane Doe
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec feugiat ultricies vulputate. Suspendisse quis lacinia erat, eu tincidunt ante. Pellentesque aliquet feugiat tellus, et feugiat tortor porttitor vel. Nullam id scelerisque magna. Curabitur placerat sodales placerat. Nunc dignissim ac velit vel lobortis. Nam luctus mauris elit, sed suscipit nunc ullamcorper ut.
- John Doe





