If you are looking for a brake, a clutch or a brake-clutch configuration,
Lenze may be able to help. The company has a wide range of products,
including its BFK series spring operated brakes with electromagnetic
release, as well as electromagnetic clutches and brakes, and the
Simplabloc clutch-brake assembly, which allows the drive shaft to be
accelerated or decelerated at constant drive speed.
BFK brakes cover torque requirements from 0.5 to 600Nm, the three models
in the series offering a number of frame sizes to suit the application.
The BFK 454 is specially approved for use in lift mechanisms, where it
serves as a holding brake with emergency stop function in the event of
power loss, while the BFK 458 unit can be modified for low noise
operation in stage scenery movement systems. For smaller applications,
such as mobility vehicles and sports equipment, the BFK 457.
If variable braking is required, Lenze offers its Moditorque system,
which can be used in conjunction with a BFK 458 spring-operated brake to
provide smooth deceleration of loads.