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A graphite rotor that erodes or cracks mid-cast costs you a melt and a line stop. Degassing rotors spin and stir molten metal at high temperature, where wear is fast. This article covers five specs that extend graphite rotor life.
Dongguan Jiecheng Graphite Products Co., Ltd. (since 2003) machines degassing rotors to spec and confirms grade and balance in writing.
Five specs that extend rotor life
Grade resists oxidation and thermal shock. Density limits erosion by the melt. Balance reduces vibration and breakage. Wall and vane geometry keeps gas dispersion effective. And the shoulder fit protects the shaft connection. Jiecheng Graphite confirms these values before machining.
Grade — oxidation and thermal-shock resistance
Density — lower erosion in the melt
Balance — low vibration, less breakage
Geometry — vanes sized for gas dispersion
Fit — shoulder tolerance on the shaft
Where degassing rotors are used
Degassing rotors stir and purge dissolved gases in molten aluminum and other non-ferrous melts. Confirm the metal, temperature and rotation speed before ordering.
Molten aluminum degassing and purification
Rotary flux and gas injection units
Non-ferrous foundry and casting lines
What to specify before you buy
Send the shaft size, melt temperature and rotation speed. Jiecheng Graphite machines rotors in its 3,000 m² Dalang, Dongguan plant with 100+ five-axis CNC centers and ships worldwide.
Spec | What to confirm | Why it matters |
Grade | Oxidation + shock | Sets rotor life |
Density | Value | Controls erosion |
Balance | Runout | Cuts vibration |
Geometry | Vane size | Keeps gas dispersion |
Fit | Shoulder tolerance | Protects connection |
Buying checklist
1. Send shaft size, temperature and speed
2. Confirm grade and density for the melt
3. Specify balance and vane geometry
4. Agree inspection per batch
5. Freeze the rotor spec
FAQ
Why does my rotor erode fast?
Grade or density; confirm both for your melt.
How do I stop rotor vibration?
Balance the rotor and hold the shaft fit.
How long should a rotor last?
Depends on grade, melt and speed; confirm the value.
Confirming rotor life
Rotor life is decided in the spec, not in the melt. Confirm the grade, density and balance before machining, and log the first run. Jiecheng Graphite documents grade and balance on every rotor, so you compare life on data.
Confirm grade and density limits
Set balance and fit values
Log rotor life per run
A long-lived degassing rotor comes from grade, density, balance, geometry and fit, all confirmed. Jiecheng Graphite has made graphite rotors since 2003 and keeps the spec on file for consistent re-orders.
