Multi Position Rotary Actuators

Multi-position rotary actuators provide back and forth rotation between three, four, or five positions in any sequence. All Rotomation multi-position actuators feature black-anodized aluminum bodies, one-piece heat-treated alloy steel pinion shafts, ball bearings, and stainless-steel hardware. The three-position version is the most common requirement but four and five-position units provide additional flexibility and designed with value in mind, based on the same basic assembly. They are designed to use one cylinder at a time (per position) to provide the propelling force, therefore they generate the same amount of torque as our single-rack rotary actuators.

Rotomation’s Unique Lash Reduction: Most competitive multi-position rotary actuators suffer from lash (free play) of the shaft in the intermediate positions. Rotomation utilizes a unique layout and a trimming operation during assembly to minimize this lash to a small fraction of a degree. This is a standard feature of all our multi-position rotary actuators.

Common Options: adjustable rotation (for end positions only), various shafts and keyway orientation, bumpers (for end positions only), magnetic switches for feedback of any or all positions, and various port locations.