Power Core: Vane-Type Pneumatic Motor
At the heart of the pneumatic grinder lies a precision-engineered vane motor; compressed air enters through an intake valve, driving 6–8 carbon steel vanes to rotate at high speeds. An eccentric rotor design creates variable-volume chambers, allowing the expanding air to convert approximately 90% of its intake pressure into mechanical energy. Operating speeds typically range from 20,000 to 25,000 RPM, with stable power transmission ensured by a precision bearing assembly.
Dual-Core Grinding System
Spindle Drive: A carbide spindle connects the motor to the grinding wheel, utilizing a tapered fit to ensure concentricity.
Wheel Mounting: A dual-safety design-combining threaded locking with a mounting flange-prevents loosening caused by high-speed centrifugal forces.
Balance Adjustment: Built-in counterweights allow for fine-tuning, keeping vibration levels below 0.5 mm/s.
Triple-Layer Safety Protection
Airflow Cooling: 80% of the exhaust air cools the motor, while 20% is directed toward the grinding wheel's working surface.
Vibration Dampening: Rubber cushioning pads absorb over 60% of high-frequency vibrations.
Explosion-Proof Structure: The all-metal housing is designed to withstand the impact energy resulting from an accidental grinding wheel rupture.
