电动扳手是指拧紧和旋松螺栓及螺母的电动工具，是一种拧紧螺栓的工具。用于钢结构桥梁、厂房建筑、化工、发电设备安装大六角头螺栓施工的初拧、终拧和扭剪型螺栓的初拧，以及对螺栓紧固件的扭矩或轴向力有严格要求的场合。
Electric wrench refers to an electric tool used to tighten and loosen bolts and nuts, and is a tool for tightening bolts. Used for the initial tightening, final tightening, and initial tightening of shear type bolts for the installation of large hexagonal head bolts in steel structure bridges, factory buildings, chemical engineering, and power generation equipment, as well as in situations where there are strict requirements for the torque or axial force of bolt fasteners.
电动扳手的产品名称型号不同，用途使用范围也不同。这里介绍定转矩电动扳手，供使用参考。
The product names and models of electric wrenches vary, and their usage ranges also vary. Here is an introduction to fixed torque electric wrenches for reference.
定转矩电动扳手是一种能自动控制转矩的电动扳手。它适用于需要用螺栓连接的桥梁结构、大型钢塔、转矩稳定等优点。
Fixed torque electric wrench is a type of electric wrench that can automatically control torque. It is suitable for bridge structures that require bolted connections, large steel towers, torque stability, and other advantages.
我国自行设计、制造的120kgf·m定转矩电动扳手是一种静转矩结构的扳手。它可作为螺栓的终拧工具，即把初拧过的螺栓再拧到规定的
The 120kgf · m fixed torque electric wrench designed and manufactured by China is a type of wrench with a static torque structure. It can be used as a final tightening tool for bolts, that is, to tighten the initially tightened bolts to the specified value
电动扳手是装卸螺纹联接件的手持式电动工具，应用于汽车、拖拉机、电机电器、动力机械、阀门、水泵、纺织机械等制造业的装配工作中，在化工、水泥预制件、塑料成型等作业中则用于生产流程中装拆真空罐、反应釜和水泥模板、带螺纹塑料件的脱模工作；也可用在铁道、桥梁、建筑等工程中作水泥轨枕、桁架节点、角钢脚手架等结构的安装、检修和拆换工作。
Electric wrench is a handheld electric tool used for loading and unloading threaded connectors. It is used in the assembly work of manufacturing industries such as automobiles, tractors, electric motors, power machinery, valves, water pumps, textile machinery, etc. In chemical engineering, cement prefabrication, plastic molding, and other operations, it is used for the assembly and disassembly of vacuum tanks, reaction kettles, cement templates, and demolding of threaded plastic parts in the production process; It can also be used for the installation, maintenance, and replacement of cement sleepers, truss nodes, angle steel scaffolding, and other structures in railway, bridge, construction, and other engineering projects.
