Classification of commonly used torque wrenches.hydraulic torque wrench company

　　As a qualified hydraulic wrench salesperson, you must be familiar with torque wrenches. The editor of Turt Machinery will be working on the axe today, and I will sort out several categories of torque wrenches for everyone.

　　The commonly used torque wrenches include manual torque wrenches, electric torque wrenches, pneumatic torque wrenches and hydraulic torque wrenches. I have written a lot of articles about hydraulic wrenches before, so I won’t repeat them here. Let’s discuss manual torque wrenches, Features and functions of electric torque wrenches and pneumatic torque wrenches. #Heat exchanger hydraulic wrench#

　　1. A manual torque wrench is a torque wrench that requires manual operation. There are three common manual torque wrenches as follows. #Manual torque wrench#

　　1. Mechanical torque wrench: If the torque reaches the set torque value during use, there will be a "click" sound similar to a mechanical collision alarm. At this time, the wrench can no longer work to prevent excessive force.

　　2. Digital display or pointer torque wrench: These two types are equipped with a digital display or pointer torque meter on the mechanical torque wrench to visualize the acting torque.

　　3. Automatic sliding torque wrench: The working principle of this torque wrench is to automatically unload after reaching the set torque, which plays the role of overload protection.

　　Among the above three manual torque wrenches, the mechanical torque wrench is widely used in the market because of its low cost and low price.

　　2. Electric torque wrench: refers to the electric wrench that can set the torque value on the wrench. It is currently the most widely circulated and frequently used electric wrench. According to the use function, it is divided into two types: current type electric wrench and dynamic torque sensor type electric wrench. #electric torque wrench#

　　1. Current-type electric wrench: This electric torque wrench judges the torque value according to the change of the current value during the tightening process of the motor. Once the set torque value is reached, the motor will automatically stop and stop working. According to the different scope of use, it is divided into straight handle electric torque wrench and curved handle electric torque wrench.

　　2. Electric wrench with torque sensor: This kind of wrench with sensor is equipped with a torque sensor on the reduction box, which can monitor the change of the torque value of the wrench, and the motor will automatically stop working if it reaches the predetermined torque value.

　　The electric torque wrench is widely used, and it has the characteristics of high torque accuracy, wide application range, low failure rate and long service life, which can play a role in many fields.

　　3. Pneumatic torque wrench: The working principle of this wrench is that compressed gas is used as the air source. After setting the air pressure, the starter motor in the wrench is driven by the pneumatic triple piece to drive the gear to tighten the bolt. There are mainly oil pressure pulse type, clutch type, Dynamic torque sensor type. #Pneumatic torque wrench#

　　1. Oil pressure pulse type and clutch type: These two types of pneumatic wrenches avoid over force by automatically cutting off the air after the torque value reaches the set value.

　　2. Torque sensor type: when the torque value reaches the set torque value, the controller will control the solenoid valve to cut off the air, and the wrench will stop working.

　　Among the pneumatic torque wrenches, the hydraulic pulse type is favored by many people because it has no reaction force, but it is not suitable for hitting soft connecting bolts.

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