The MCA power clamping nut from JAKOB Antriebstechnik provides the user with a long-proven, widely used and economical clamping element. Without additional installation effort, this clamping technology can ensure the highest clamping forces and maximum operational safety - and can be operated manually quite easily. All that is needed is an SW 17 wrench. However, it is recommended to use a torque wrench to ensure exact, reproducible clamping forces. The special inner workings, an integrated planetary gear mechanism, multiply the manual tightening torque.

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

The power lock nut supports the planetary gears by means of stable claws instead of bolts, which has created space and increased the power range. The material design in quenched and tempered steel as well as the surface coating protecting against corrosion guarantee a long service life of the clamping elements. The MCA mechanical clamping nut is maintenance-free under normal operating conditions and, in a special design, can be used at temperatures of up to 400°C.

The power clamping nuts are used in all areas of mechanical engineering where large clamping forces are required. For example, the economical clamping of press and punching tools or for workpiece clamping during machining. However, 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 up to 200 KN in the standard program.

Variants

In the MCA-S/MCA-T version, the power clamping nuts have been extended by a star or T-handle to allow easy operation by hand.

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