The MCA-DB and MCG-DB variants extend the power clamping nuts with a preset torque limit. This means that a torque wrench is no longer required, a simple wrench is sufficient and the clamping force of the nut is always applied correctly. The torque limiter is built into an attachment that is preset by JAKOB to the required torque at the factory.
The MCA-DB and MCG-DB series cover nominal clamping forces from 60 to 200 kN. There is also the option of having existing power clamping nuts of the underlying MCA and MCG series expanded by the manufacturer to include the integrated torque limitation.