Pneumatically actuated clutches and brakes

Last crawled date: 2 years ago

With pneumatic clutches, the axial thrust for
building up the torque is transmitted by a piston
running in a cylinder. When the cylinder space is
depressurised, the springs push back the piston to
its starting position.
With spring-applied brakes, the axial thrust
required for building up the torque is generated by
springs. The brake is released by applying the
appropriate pneumatic pressure to the piston. In
the combined units, the frictional connection is
produced on the clutch side with air pressure and
on the brake side with spring pressure. The number
of springs and thereby the spring pressure can be
selected in accordance with the level of torque
required.