DRQ-50-90-PPV-A

What does a semi-rotary actuator do?

A semi-rotary actuator converts compressed-air pressure into a controlled rotary movement over a limited angle. This type is commonly used to index, turn, clamp, open/close, divert, or orient parts in automated machinery.

What swivel angle does this unit provide?

This variant is configured for a 90° swivel motion. In many installations, 90° operation is used for quarter-turn positioning tasks such as diverting parts or rotating a gripper between two orientations.

Is it single-acting or double-acting?

It is typically used as a double-acting pneumatic actuator, meaning air pressure is applied to drive motion in both directions (clockwise and counter-clockwise), providing consistent force and repeatable movement.

What does the PPV feature mean in practical terms?

PPV indicates adjustable pneumatic end-position cushioning. It helps reduce impact at the end of each stroke, which can improve smoothness, reduce noise, and lessen mechanical stress on the actuator and connected tooling.

How do I adjust the end-position cushioning?

Cushioning is adjusted using the cushioning adjustment screws (if fitted on your unit). A common approach is to start with cushioning more open, run the actuator at normal operating speed, then gradually adjust until end-position impact is reduced while maintaining reliable reaching of end positions.

What size is this actuator and why does it matter?

This is size 50. The size is a key selection factor because it relates to the actuator’s torque capability, shaft/interface dimensions, and overall envelope—important when matching an existing machine layout and load requirement.

What types of applications is it commonly used for?

Common uses include turning and orienting components, rotating grippers, indexing small fixtures, operating diverter gates, and other quarter-turn motions in packaging, assembly, and material handling equipment.

Can it be used for precise positioning?

It is designed primarily for repeatable end-to-end rotation between two end positions. For higher positioning accuracy, performance also depends on the external load, air supply stability, speed control, and mechanical stiffness of the mounting and tooling.

How is rotation speed typically controlled?

Rotation speed is usually controlled with external flow control valves on the air ports. Adjusting the airflow in and/or out of the actuator allows you to tune cycle time and reduce end impacts in combination with the built-in cushioning.

What should I check to ensure interchangeability with an existing actuator?

Confirm the swivel angle (90°), size (50), the presence of adjustable cushioning (PPV), the mechanical interface (shaft type and mounting pattern), port location/orientation, and the available installation space. If you are matching an existing assembly, also compare the output shaft height and any attached coupling or hub dimensions.

Does this actuator require lubricated air?

It is generally intended to operate on properly prepared compressed air. If your system uses lubrication, keep it consistent (do not switch between lubricated and non-lubricated operation without reviewing the overall pneumatic setup), as changes can affect seals and performance over time.

Are sensors or position feedback commonly used with this type of actuator?

Yes. Many semi-rotary actuator installations use external sensors to detect end positions (for example, via a mounted sensor and a suitable target on the moving tooling). The exact sensing method depends on your machine design and how the end positions are referenced.