Product Overview
High-performance graphite rotor shafts and impellers are critical components in molten aluminum degassing and purification systems. With excellent corrosion resistance to molten aluminum, high temperature strength, and good wear resistance, our degassing rotors provide reliable and efficient removal of hydrogen and impurities from molten aluminum in casting and foundry operations.
Key Features
- Excellent corrosion resistance to molten aluminum
- High temperature strength for continuous operation
- Good wear resistance for long service life
- Precision machined impeller geometry
- Consistent degassing performance
- Available in standard and custom lengths
- SiC coating option for extended life
Technical Specifications
| Parameter | Unit | Standard Grade | Premium Grade |
|---|---|---|---|
| Material | - | Fine-Grain Graphite | Isostatic Graphite |
| Bulk Density | g/cm³ | 1.75 | 1.85 |
| Shore Hardness | - | 65 | 75 |
| Flexural Strength | MPa | 40 | 55 |
| Shaft Diameter | mm | 40 - 100 | 40 - 100 |
| Impeller Diameter | mm | 100 - 300 | 100 - 300 |
| Max Length | mm | 1500 | 1500 |
| Max Operating Temp | °C | 750 | 800 |
Applications
- Molten aluminum degassing and purification
- Aluminum casting and foundry operations
- Aluminum alloy processing
- HDC (high pressure die casting) degassing
- Aluminum billet and slab casting
- Recycled aluminum processing
- Laboratory molten metal treatment
Why Choose Jincheng Degassing Rotors?
We manufacture precision graphite degassing rotors and shafts for aluminum foundries and casting companies worldwide. Our rotors are designed for optimal gas dispersion and hydrogen removal efficiency. We offer standard rotor designs as well as custom geometries and lengths to match your specific degassing equipment and melt handling requirements.
FAQ
Q: How long does a graphite degassing rotor last?
A: Rotor life depends on molten aluminum temperature, rotor speed, treatment frequency, and bath level. Typically, graphite degassing rotors last for 500-2000 treatment cycles. Premium isostatic graphite and SiC-coated rotors provide significantly longer service life than standard grades.
Q: Can you produce rotors for specific degassing machine brands?
A: Yes, we produce replacement rotors for most major degassing machine brands. Please provide your existing rotor dimensions or the degassing machine model, and we will produce a compatible replacement rotor. Custom designs are also available for special applications.
Q: What is the benefit of SiC coating on degassing rotors?
A: CVD SiC coating provides a dense, wear-resistant surface that significantly extends rotor service life by reducing erosion from molten aluminum and gas bubbles. SiC-coated rotors typically last 2-3 times longer than uncoated graphite rotors, reducing downtime and replacement costs.
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