FOL-N/B-BF Spring-applied Hydraulic Multi-disc Brake

Spring-applied brakes are realized to instantaneously lock a machinery or part of it in an emergency, simply cutting off pressure supplied to the brake actuator. They also may be used as parking brakes during scheduled stops or for maintenance.

In working conditions, this type of brake is engaged by the action of thrust springs, which guarantee the nominal braking torque. Releasing of the brake occurs when air/oil under pressure is supplied to the working cylinder through the supply bore «A» located on the external diameter of the working cylinder itself.

For dry applications, this series of multi-disc brakes makes use of a combination of bronze/steel disks that actually allows you to work without lubrication. In order to obtain a complete disengagement of the brake, you must guarantee the release pressure suggested on this catalogue; we also suggest to mount the command valve, which must be equipped with a blow-off device, as close as possible to the working cylinder, to quickly and precisely disengage the brake.