The difference between pneumatic torque wrench and pneumatic spanner
The first is pneumatic as the driving medium, pneumatic torque wrench is able to adjust the torque, and pneumatic wrench can not adjust the torque, the general pneumatic torque wrench accuracy can reach less than 5%, and adjust the torque scale is large, now the maximum torque can reach 12,000 Nm, and pneumatic wrench is mainly impact wrench, there are. Torque is usually small, and the torque is not accurate, noise is greater, compared with pneumatic torque wrench price is higher, generally imported things, pneumatic wrench price is lower. A pneumatic wrench with torque, a torque-free, torque-free wrench can manipulate the torque and tighten the bolt accurately.
Pneumatic impact bolt can only be a strong bolt, can not control the bolt is enough to tighten according to the requirements, you said the pneumatic torque wrench should be refers to the pneumatic ratchet wrench, this is not a torque calibration function, and torque wrench is generally used to lock the specified torque screw, can adjust the size of the torque, pneumatic torque wrench The wrench is powered by compressed air. Generally it's manual. If you only focus on the depth of the screw, maybe as you say, you're controlling the height. It's hard to do anything on the ground, no matter what brand. Unless you reduce the gas source and control the number of revolving circles by the naked eye, then calculate the thread travel. If this is actually operated, it will be difficult to achieve.
Therefore, electric sensors and sensors are used. The depth of thread tightening is controlled by viewpoint setting. And it is feasible to stop at the point of view. Pneumatic things are mainly used in low accuracy, some chaotic high-precision use of electric things. For example, automobile tires, engine cylinder heads and so on.
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