The MCA power clamping nut from JAKOB Antriebstechnik provides the user with a long-proven, widely used and economical clamping element. This clamping technology can guarantee the highest clamping forces and maximum operational reliability without any additional installation work - and is very easy to operate manually. All that is required is an SW 17 wrench. However, we recommend using a torque wrench to ensure exact, reproducible clamping forces. The special inner workings, an integrated planetary gear mechanism, multiplies the manual tightening torque.


The power clamping nuts have proven their durability on a specially designed test bench. They were subjected to a continuous load of 10,000 load cycles and were able to confirm all expectations.


The power clamping nut mounts the planetary gears using stable claws instead of bolts, creating space and increasing the power range. The quenched and tempered steel material and the surface coating that protects against corrosion guarantee a long service life for the clamping elements. The mechanical clamping nut MCA is maintenance-free under normal operating conditions and can be used in special versions up to 400°C.


The power clamping nuts are used in all areas of mechanical engineering where high clamping forces are required. For example, the economical clamping of press and punching tools or for workpiece clamping during machining. But there are also universal areas of application in steel and fixture construction.


The MCA series is available with clamping screws from M12 to M64 and with clamping forces of up to 200 KN in the standard range.


Variants


In the MCA-S/MCA-T version, the power clamping nuts have been extended to include a star or T-handle for easy manual operation.

The latest MCA-DB series already contains an integrated torque limiter. This eliminates the need for a torque wrench and effectively prevents the clamping nut from being overloaded.