Permanent magnet brake optimised for use in servo motors 

KEB Automation has introduced an innovative permanent magnet brake that is optimised for use in servo motors. The new COMBIPERM P2 brake achieves significantly higher torque and has a more compact design to fit smaller installation spaces.

Brakes in servo motors must work precisely under specific ambient conditions. With this in mind, KEB developed the COMBIPERM P2 as the successor to its long-established COMBIPERM P1 brake.

“The P2 was built for the requirements of servo motors. It needs less power, which means that the motor does not heat up as much. Furthermore, the brake has the added advantage of an optimised magnetic flow,” explains Hendrik Wieneke, Head of Sales Brakes and Clutches at KEB.  

More emergency stops and a larger wear reserve 

The improved magnetic flow in the newly developed permanent magnet brake has positive effects on the torque. In addition, less permanent magnet material is required. Innovations in the P2 also include a felt ring, which is now integrated as standard. Due to the position of the brake on the engine mount, this serves, among other things, to catch the oil mist that is produced. More emergency stops and a larger wear reserve are further benefits that distinguish the P2 from its predecessor. Designed for voltages of 24V and with a torque range of 1 to 60Nm, the P2 presents itself as a particularly powerful brake.

“Thanks to its precision and its resistance to high temperatures in the motor compartment, the COMBIPERM P2 is suitable for numerous application areas. Servo motors, robotics, medical technology and logistics are just a few examples where our brake solution is in demand,” adds Wieneke.

The new COMBIPERM P2 brake is already in use at various customers and is undergoing further tests. Market launch is planned for the middle/end of 2023.