The XM Series three-stage pneumatic actuators are available in 0°- 45°-90° or 0° -90° -180° mode of operation. The intermediate position is achieved by the mechanical brake produced by the movement of two auxiliary pistons. The intermediate position is adjustable, such as a 90° rotary angle actuator can set the intermediate position to be 20°, 30°, 50°, or 75°.
