Rotary Actuator
MASCOT spring cylinder rotary actuator is a powerful, high-torque and high-stiffness pneumatic actuator, which can be used for precise throttling or on-off applications. Uniquely designed compact sized cylinders actuators accept supply pressures up to 150 psi, making very high torque available in a relatively compact unit making it the first choice for MASCOT control valves like the DiskFlo high performance butterfly valve, VFlo Segmented Ball Valve and the EFlo Eccentric Plug Valve. The MASCOT rotary actuator uses a “rocking” piston assembly for direct conversion of linear motion to rotary motion. The rocking piston assembly along with a splined shaft and lever eliminates any lost motion due to backlash.


25, 50, 100, 200 & 300 Sq In
Rotary Actuator
TypeSpring Cylinder
Sizes25, 50, 100, 200 & 300 Sq In
Spring DesignsStandard, Heavy Duty, Dual, Special Springs on Request
ActionAir-to-Open, Air to Close (Field Reversable)
Operating PressureUp to 150 psi (10.3 Bar)
Ambient Temperature-40 F to 185F
Extended Temperature VariantsUp to -76 F (-60° C) for Low Temperature
Up to 350 F (177° C) for High Temperature
Sensitivityas little as 0.017 psi rotates the stem by 0.01 degrees
Independent Linearity± 1.0% FS
Hysteresis± 0.5% FS

Product Catalogue

Rotary Actuator


Instruction and Operation Manual

Rotary Actuator

Oil & Gas
Pulp & Paper
Chemical Processing
Space Research
Mining & Metals
Industrial Gases & Cryogenic
Food & Beverage
Sugar & Distilleries

We’re here to assist you! Whether you have a question about our products, need assistance with an application, or just want to say hello, we’d love to hear from you. You can reach us by filling out this contact form.

Quick Enquiry