M27 M30 Torque Wrench

At sites involving highway bridges, petrochemical installations, or heavy equipment assembly, tightening high-strength bolts often requires torque exceeding 1,000 N·m. However, some operators fail to follow project specifications, instead using standard impact wrenches haphazardly; this results in imprecise torque control, leading to issues such as stripped threads or insufficient preload. Such practices create significant safety hazards, which is why industry standards now mandate the use of high-torque electric wrenches.

The Hanpu TL-21LP model features a German-made motor and offers a torque adjustment range of 900 to 2,100 N·m, specifically designed for tightening M27, M30, and larger hex bolts. It delivers 1,800 watts of power, operates at a speed of 6 rpm, and weighs 6.6 kg. After connecting to a 220V or 110V power supply and setting the target torque on the controller, the wrench tightens the bolt until the preset value is reached before automatically cutting off power. This ensures precise tightening-avoiding both over-tightening and under-tightening-with a repeatability accuracy of ±3%.

Another key feature is the Hanpu wrench's reaction arm. During operation, the reaction arm braces against a fixed point, absorbing the entire reaction force generated while tightening bolts; this relieves the operator's hands of any strain. These heavy-duty torque tools are widely used in steel bridge installation and petrochemical pipeline connections, making them ideal for demanding construction sites requiring continuous operation. Using this electric torque wrench doubles work efficiency while ensuring that every bolt meets the required tightening specifications.

For high-quality wrenches, choose Shandong Hanpu.

Email: marketing@hanputool.com or WhatsApp: +86 18653495537.

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