PHD, Inc. Series RA High Load Pneumatic Rotary Actuators

Описание: http://www.phdinc.com/Product/?produc...

Available in five sizes and six standard rotations with torques ranging to 150 in-lb at 100 psi [17 Nm at 7 bar] to cover a wide range of applications. Zero backlash at ends of rotation for precise rotary positioning. The high strength steel alloy rack and one-piece pinion shaft are designed and tested to operate for a minimum of 10 million maintenance-free cycles. Free floating pistons with pressure and wear compensating seals provide long life and low friction with a 5 psi [0.3 bar] breakaway pressure. Oversize sealed ball bearings and large pinion shafts ensure shaft stability under heavy loading and high load stopping ability. Built-in standard angle adjustments, of +10°, -45° on each nominal angle rotation, make it easy to adjust to specific rotation requirements. This provides a total range of actuator rotations from 0 to 280° (+5° -22-1/2° from each end).
Mounting patterns on three surfaces provide flexibility in design and unit mounting. Units with rotations of 180° or less have all control adjustments and ports on top of the actuator saving space and easing accessibility. Optional built-in hydraulic shock absorbers provide smooth deceleration of external loads and allow for greater load stopping capacity. Optional built-in flow controls save space and provide constant and accurate control of the rotation speed.
Optional built-in adjustable cushions reduce end-of-rotation shock and increase the unit's stopping capacity. Optional hubbed pinion shaft provides a flat mounting surface with a four bolt pattern for easy mounting of tooling and accessories to the actuator's shaft.
Miniature PHD Proximity Switches mount easily into slots in the actuator's body for interfacing with an electrical controller. Units can be specified for use with PHD's Miniature Reed or Hall Effect Switches. Series RA Rotary Actuators are available in both metric and imperial versions allowing flexibility in design for a world market.