Electric wrench is a wrench powered by power supply or battery. It is a tool for tightening high-strength bolts, also known as high-strength bolt gun. It is mainly divided into impact wrench, torsion shear wrench, constant torque wrench, angle wrench and angle wrench. So how do we choose products? What should we choose from?

扭力测试仪

Torque tester

扭力测试仪，主要用于检测样品的紧固程度以及其样品某些部件的抗扭性能，以确定样品是否符合扭力要求。主要检测瓶装包装产品瓶盖锁紧、开启的扭矩值大小，是生产单位离线或在线重 点控制的工艺参数之一。

Torque tester is mainly used to test the fastening degree of the sample and the torsional performance of some parts of the sample to determine whether the sample meets the torque requirements. It mainly detects the torque value of bottle cap locking and opening of bottled packaging products, which is one of the key process parameters controlled by the production unit offline or online.

推拉力计

Push pull meter

推拉力计，是一种用于推力及拉力测试的力学测量仪器。推拉力计适用于电子电器、轻工纺织、建筑五金、打火机及点火装置、消防器材、制笔、制锁、渔具、动力机械、科研机构等行业的推拉负荷测试。如：在化妆品行业中用于头发断裂力的测试;在包装行业中用于测量胶带、薄膜等包装材料的强度等。推拉力计适用于各种不同用途的测试，如：拉力、压力、插拔力、裂开力、弯曲力、剥离力、延伸力、硬度、拉开力、拉力强度、破断力、开关接点。

Push pull meter is a mechanical measuring instrument used for thrust and tension test. The push-pull meter is applicable to the push-pull load test of electronic and electrical appliances, light industry and textile, construction hardware, lighters and ignition devices, fire fighting equipment, pen making, lock making, fishing gear, power machinery, scientific research institutions and other industries. For example, it is used to test the breaking force of hair in the cosmetics industry; In the packaging industry, it is used to measure the strength of packaging materials such as tape and film. The push-pull tester is suitable for testing for various purposes, such as tensile force, pressure, plug-in force, cracking force, bending force, peeling force, extension force, hardness, pulling force, tensile strength, breaking force and switch contact.

扭力扳手

Torque wrench

扭力扳手又称扭力计、扭力螺钉旋具。它是依据梁的弯曲原理、扭杆的扭力扳手弯曲原理和螺旋弹簧的压缩原理而设计的，能测量出作用在螺母上的力矩大小。也叫力矩扳手，力矩就是力和距离的乘积，在紧固螺丝螺栓螺母等螺纹紧固件时需要控制施加的力矩大小，以保证螺纹紧固且不至于因力矩过大破坏螺纹，所以用扭矩扳手来操作。常用的是手动扭力扳手，除此之外还有电动扭力扳手、风动扭力扳手等。

Torque wrench is also called torque meter and torque screw driver. It is designed according to the bending principle of beam, the bending principle of torsion wrench of torsion bar and the compression principle of coil spring. It can measure the torque acting on the nut. It is also called torque wrench. Torque is the product of force and distance. When tightening threaded fasteners such as screws, bolts and nuts, the applied torque needs to be controlled to ensure that the threads are tightened and will not damage the threads due to excessive torque, so it is operated with torque wrench. Manual torque wrench is commonly used. In addition, there are electric torque wrench, pneumatic torque wrench, etc.

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