Pneumatic torque wrench is a kind of torque wrench with high pressure air pump as power source. A torque multiplier with three or more epicyclic gears is driven by one or two powerful pneumatic motors. The amount of torque is controlled by adjusting the gas pressure, and each tool is equipped with a special pneumatic torque chart and correction report to allow a specific torque demand setting. And for further application, the pneumatic torque wrench can be matched with a torque sensor at the same time, so that the output torque is more accurate. A suitable circuit system may be used to manually or automatically shut off the air supply after the required torque is obtained. Pneumatic torque wrench is a hand-held rotary pneumatic tool, which can accurately set the torque and is used to complete the locking or dismantling of nuts and bolts. The control part is realize through a voltage regulator and a power management system, that mechanical part adopt a planetary gear reduction mechanism [1] and the operation of a pneumatic torque wrench is quiet-lower than 85dB(A ), has absolutely no impact effect, reduces damage to tools, sleeve and locked objects, and can enable people using the tools to operate comfortably, reduce fatigue and improve safety, and the torque can reach 300,000N.m at most. Pneumatic torque wrenches provide accurate torque control-5% repeatability, equipped with sensors
Post time: Oct-13-2021
