A Pneumatic torque wrench is an air motor driven planetary gear box having a very high reduction ratio. The gear box is provisioned with a reaction arm to absorb the torque reaction. Unlike impact wrench a pneumatic torque wrench is driven by continuous gearing and hence has no noisy and hazardous hammering. This is why a pneumatic torque wrench has an excellent accuracy & repeatability. Pneumatic torque wrench offers following significant advantages:-
A pneumatic torque wrench is a power tool that uses compressed air to generate torque for tightening or loosening fasteners.
They offer high torque output, faster operation, reduced operator fatigue, and constant torque application.
It converts compressed air into mechanical energy by using a motor to drive a ratchet mechanism that applies torque.
Most pneumatic torque wrenches can handle a variety of fasteners, but always check the manufacturer's specifications for compatibility.