News Release from M-PT Matjeschk-PowerTools GmbH & Co. KG


Wind Industry Profile of

Successful LIEBHERR certification of the battery torque wrenches MAD (MB-RAD)

The global crane manufacturer LIEBHERR has approved the battery-operated torque wrenches of the MAD (MB-RAD) series for crane assembly.

Assembly of a tower crane with the MAD (MB-RAD) 7000 (Image: M-PT)Assembly of a tower crane with the MAD (MB-RAD) 7000 (Image: M-PT)

This opens up new technical possibilities for the assembly companies to quickly and safely produce the HSFG bolted connections on the tower. After extensive machine capability analysis and EMC tests of the torque wrenches in the torque range of 140-7,000Nm, the LIEBHERR standard "Technical Information" now also includes the battery torque wrenches MAD (MB-RAD). The use of non-approved torque wrenches for tower assembly is not permitted.

Secure bolted connections on tower cranes

The MAD (MB-RAD) has a repeatability of ± 2.8% and can be used reliably at ambient temperatures down to -20 ° C without heating. The torque wrench can optionally be equipped with data logging or a torque check function for maintenance work. Thanks to the brushless electric motor, torque / angle control and shutdown according to torque / angle also in counterclockwise rotation, the MAD (MB-RAD) works extremely precisely and is even up to 80% faster than a hydraulic torque wrench. This reduces the crane times and thus the costs for setting up a wind turbine.

M-PT Matjeschk-PowerTools – RAD Torque Systems in Germany

We support companies with the planning, installation and maintenance of wind turbines. The quality management requirements of our customers and our practical daily experience of assembly work from the basis of research and development at M-PT. The internationally renowned manufacturer RAD Torque Systems has authorized M-PT to be the sole German sales and service partner for its products.

We offer sales and rental, as well as repairs and calibration.

Press Office
M-PT, Liebherr, crane, battery torque wrench, MAD, assembly, RAD, torque, wrench

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