Torque wrench, also known as torque gun, torque wrench, is generally divided into two categories: constant torque electric wrench and constant torque manual wrench. Fixed torque electric wrench, also known as adjustable torque electric wrench, is a kind of electric wrench. Its main feature is that the torque can be set and the torque can be adjusted.

When the electric torque wrench is working, the torque value needs to be set in advance. When the wrench reaches the set torque value, the wrench will stop automatically.

At present, there are various brands of electric torque wrench on the market, and there are also many functions. Choosing a suitable brand is very important to the construction process and quality. We recommend Hanpu brand electric torque wrench.

Hanpu electric torque wrench TN-21LP is mainly used to tighten M27, M30 large hexagonal high-strength bolts, the torque range is 900-2100N.m, and the weight is 6.6KG. It is a very popular electric torque wrench, It has been widely used in many bridge constructions at home and abroad.