Part-turn actuators
Different types of hydraulic motors

What is a part-turn actuator and why do you need it?

A Part-turn actuator is a type of actuator, also known as a rotary actuator, that can only rotate left or right over an angle of maximum 300°. These hydraulic actuators operate at working pressures around 70 bar. Part-turn actuators are much smaller than cylinders and do not have any external moving parts. Part-turn actuators are mainly used for bunker slides, opening butterfly valves, and for push, pull, lift and mix operations.

Rotary actuators are a type of hydraulic actuators that rotate left or right over an angle of 300° or less.

Part-turn actuators are very simple in design. There are two versions: one has two wings on the axle, and the other one has two internal dividers. This construction brings the swivel bracket back to around 120° and doubles the torque. The first version is prone to a low, continuous leakage rate along the wing. This means that, during operation, the rotary actuator must be under constant pressure in order to perform properly.

Type of Part-turn Actuators

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The hydraulic motor must be geared to hydraulic system requirements; issues such as load, speed, serviceability, range of load, etc. must be taken into account. Get advice and suggestions from DTA to select the appropriate hydraulic motor for your application that will suit your budget. Contact DTA today!

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  +31 (0) 168 407 145


DTA is serving your industry with the supply of hydraulic parts and hydraulic components for more than 25 years. Since 2010 we have been fully qualified and certified as distributor hydraulics by Parker Hannifin. Together we developed a rapid delivery program for the genuine Denison Hydraulics single and multiple vane pumps. We support industrial and mobile applications and hold a considerable inventory of genuine parts, components and sub-assemblies.

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