Graphite Rotor for Molten Aluminum Degassing
Introduction
Graphite rotors are critical components in molten aluminum degassing systems. The rotating shaft and impeller inject inert gas into molten aluminum to remove hydrogen and dissolved gases, improving casting quality and reducing porosity defects.
Our degassing graphite rotors are manufactured from high-density, fine-grain graphite with excellent corrosion resistance to molten aluminum and long service life compared to conventional ceramic or steel rotors.
Advantages
- Excellent corrosion resistance to molten aluminum
- High mechanical strength at operating temperatures
- Good thermal shock resistance
- Precision balanced for smooth rotation
- Various impeller designs available
- Long service life reduces downtime
- Easy to install and replace
Technical Data
| Item | Specification |
|---|---|
| Material | Fine Grain Isostatic Graphite |
| Density | 1.78 g/cm3 |
| Flexural Strength | 35 MPa |
| Hardness | 65 Shore |
| Operating Temp | 700C - 800C (aluminum) |
| Shaft Diameter | 50mm - 100mm |
| Rotor Diameter | 150mm - 350mm |
| Shaft Length | 500mm - 2000mm |
| Rotation Speed | 200 - 600 RPM |
| Service Life | 30 - 90 days (typical) |
Applications
- Aluminum die casting degassing
- Aluminum alloy foundries
- Secondary aluminum recycling
- Aluminum foil and sheet production
- Automotive aluminum parts casting
Why Choose Our Graphite Rotors?
- 15+ years in graphite foundry products
- Optimized impeller design for best degassing efficiency
- Consistent quality from batch to batch
- Custom sizes and configurations available
- Competitive factory-direct pricing
- Fast delivery: 7-15 days
- Exported to 40+ countries
- Technical support for rotor optimization
Q and A
Q: How long does a graphite degassing rotor last?
A: Typical service life is 30-90 days depending on aluminum type, operating temperature, rotation speed, and daily usage hours.
Q: Can you make rotors for my specific degassing machine?
A: Yes, we manufacture custom rotor and shaft assemblies based on your machine model and mounting specifications.
Q: Do you offer coated rotors for longer life?
A: Yes, we can supply boron nitride coated or SiC impregnated rotors for extended service life in aggressive aluminum alloys.
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