There is no need to set the torque during the initial tightening of the torsion shear bolt. It is necessary to use the fixed torque wrench or impact wrench for initial tightening, and the torque can reach 60% - 80%, and then use the final tightening torsion shear wrench for final tightening. The final tightening torsion shear wrench has set the torque according to the size of the bolt, so it is not necessary to set it by itself. The sleeve is selected according to the size of the bolt. There are six kinds of national standard torsion shear bolts m16-20-22-24-27-30, as well as British, American and customized bolts. Except that the national standard bolt sleeve is in stock, others generally need to be customized.

电动扭剪扳手使用效果：

Use effect of electric torsion shear wrench:

1、冲击电动扳手主要是初紧螺栓的，它的使用很简单，就是对准螺栓扳动电源开关就行。电动扭剪扳手主要是终紧扭剪型螺栓的，它的使用就是对准螺栓扳动电源开关，直到把扭剪型螺栓的梅花头打断为止。

1. The impact electric wrench is mainly used to initially tighten the bolt. Its use is very simple. Just aim at the bolt and pull the power switch. The electric torsion shear wrench is mainly used to finally tighten the torsion shear bolt. Its use is to align the bolt and pull the power switch until the plum blossom head of the torsion shear bolt is broken.

2、电动定扭矩扳手既可初紧又可终紧，它的使用是先调节扭矩，再紧固螺栓。电动转角扳手主要也属于定扭矩扳手的一种，它的使用是先调节旋转度数，再紧固螺栓。电动角向扳手是一种专门紧固钢架夹角部位螺栓的电动扳手，它的使用和电动扭剪扳手原理一样。电动扭剪扳手拆装扭力矩大、比手工更保险可靠。方便、美观、实用、便于随车携带。广泛用于钢结构桥梁、厂房、高层建筑、化工建设等设施的施工作业。

2. The electric constant torque wrench can be tightened initially and finally. Its use is to adjust the torque first and then tighten the bolts. Electric angle wrench mainly belongs to a kind of constant torque wrench. Its use is to adjust the rotation degree first, and then tighten the bolt. The electric angle wrench is an electric wrench specially used to fasten the bolts at the included angle of the steel frame. Its use principle is the same as that of the electric torsion shear wrench. The electric torsional shear wrench has a large torque for disassembly and assembly, which is safer and more reliable than manual. Convenient, beautiful, practical and easy to carry with the car. It is widely used in the construction of steel structure bridges, factories, high-rise buildings, chemical construction and other facilities.

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