Pneumatic torque wrenches harness compressed air to deliver fast, powerful and repeatable torque. These robust tools are the go-to choice for high-volume bolting in mining, OTR and heavy industrial applications where speed and durability matter most.
Pneumatic (air-powered) torque wrenches use a planetary gear reduction system driven by a compressed air motor to deliver controlled, continuous torque. Unlike impact wrenches that deliver torque through sudden impacts, pneumatic torque wrenches provide smooth, shock-free tightening with measurable accuracy.
The key advantage of pneumatic torque technology is speed. These tools can complete a bolting cycle significantly faster than hydraulic alternatives, making them ideal for applications with large numbers of fasteners — such as off-the-road (OTR) tyre bolts on mining haul trucks and excavator track shoes.
Choosing between pneumatic, hydraulic and battery torque depends on your application. Pneumatic excels where compressed air is readily available, speed is critical and bolt counts are high. Hydraulic is preferred for the highest torque values and confined spaces. Battery offers portability where neither air nor power is available.
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A pneumatic torque wrench is an air-powered bolting tool that uses a planetary gear reduction mechanism to deliver controlled, repeatable torque. Unlike impact wrenches, pneumatic torque wrenches provide smooth, continuous rotation for accurate bolt tightening.
Most pneumatic torque wrenches operate at 90-100 PSI (6.2-6.9 bar) air pressure with a recommended air flow of 30-50 CFM depending on the model. A properly sized compressor is essential for optimal performance.
Pneumatic torque wrenches are widely used in mining for OTR tyre bolts, excavator track shoes, crusher maintenance and general plant bolting. Their speed, durability and continuous-duty capability make them ideal for high-volume mining bolting applications.
The RAD OTR is specifically designed for off-the-road tyre bolting on mining haul trucks, loaders and earthmoving equipment. It delivers fast, accurate torque for wheel nut applications in the harshest field conditions.
Choose pneumatic when speed is critical, bolt counts are high and compressed air is available. Choose hydraulic when maximum torque output is required, clearance is limited or the application demands the highest accuracy.