The MIL 57 Direct acting and 58 Reverse acting
type pneumatic multi-spring actuators are designed to provide high performance.
Different spring ranges are achieved by varying spring quantity &
compression.
Key features include:
Field Reversible
Multi-spring actuators are field reversible without extra parts to
provide either air-to-close or air-toopen action.
Heavy One-piece Yoke
Provides maximum strength and rigidity.
Thrust Capability
Two actuator types and four sizes provide a wide range of applications.
Diaphragm
Moulded elastomer with fabric insert for strength, long life and high
sensitivity.
Exceptionally Low Hysteresis &
Good Dynamic Response
Due to the absence of side loads imposed by unevenness
of single coiled springs.
Compactness
MIL multi-spring actuators are more compact than other comparable
designs and hence easier to install and maintain. Smaller size allows
the actuators to be installed in more positions.
