Inside a pneumatic grinder, vanes are the “muscle fibres” of the air motor. They slide in and out of the rotor, using compressed air to generate torque and speed. Over time, vanes wear down, chip, or lose their crisp edges—leading to sluggish start-up, lower power, inconsistent speed, and a tool that feels like it’s working too hard for too little output.

The AirCraft AT0025-24 Replacement Vanes (6 per set) are designed for the AirCraft 7" Heavy Duty Air Angle Grinder (AT0025). Fitting a fresh set helps restore proper sealing inside the air motor, improving efficiency, bringing back punch, and reducing rough running. Ideal for workshops that rely on pneumatic grinders daily and want dependable performance under load.

Fresh vanes bring the air motor back to life Vanes create the moving seal that converts compressed air into rotation. When they’re worn, the motor leaks internally and loses power—new vanes help restore torque, responsiveness and smooth operation.