A fixed torque electric wrench is a type of electric wrench that can automatically control torque. It is suitable for bridge structures, large steel towers, steel structure factories, metallurgical equipment frames, large crane frames, mine steel frames and other engineering projects that require high-strength bolt connections, as well as large diesel engines, power generation equipment, chemical equipment, etc. The bolts that require constant clamping force connections can also be tightened with a fixed torque wrench.

Electric wrench refers to an electric tool used to tighten and loosen bolts and nuts, and is a tool for tightening high-strength bolts. Used for the initial and final tightening of high-strength bolts with large hexagonal heads in the installation of steel structure bridges, factory buildings, chemical and power generation equipment, as well as the initial tightening of high-strength bolts with torsion shear type, and in situations where there are strict requirements for the torque or axial force of bolt fasteners.