Torque multiplier

Norbar Torque Tools has added to its range a powered torque multiplier suitable for the open cast mining industry where large haul trucks are used.

The PTM-92- 4000 replaces Norbar's PTM-92-3500 in the PTM- 92 series. It offers an increase in torque output from the 92mm gearbox, made possible with a new output carrier made from a high strength, specialist steel.

Pneutorque operation is quiet - less than 85dB(A), with no impacting, making the multiplier comfortable for the operator to use and reducing fatigue.

The device consists of a robust air motor driving a Norbar multiplier with three or more stages of epicyclic gearing. Torque control is achieved by adjustment of air pressure. An air pressure versus torque graph and calibration certificate is supplied with each tool and allows specific torque values to be set.