Putting on the brakes
A new series of brakes from INTORQ with IP65 enclosure offers a low cost solution for stopping and holding duties in damp or dirty environments. The series BFK461 are spring-applied brakes that are released by applying dc voltage to an electromagnetic coil. They can be engaged dynamically at motor
speeds and also suit static holding applications. INTORQ are partners with Lenze who sell these brakes worldwide.
The BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface. A plastic cap and seal close the central bore, and the supplied fixing screws have seals under the heads. There are seven models in the range with rated torques from 4 to 150Nm. For holding duties the torques can be uprated to a maximum of 235Nm. Shaft sizes start at 10mm and go up to 45mm. Brake coils can be supplied for 24V low voltage connection or rectified mains at 103, 180 and 250V.
The high enclosure of these IP65 brakes suits machinery where providing protection has been costly and complicated, for example brake motors used outdoors, car wash systems, cranes and food machinery. As the BFK461 is based on standard brake components, costs are low. It is supplied as a self-contained unit that is quick and easy to fit.
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