Rotary Actuators

Rotary actuators offer precise and efficient rotational movement across a number of industrial applications. At their core, rotary actuators consist of essential components such as a housing, shaft, bearings, and an actuation mechanism. This mechanism, whether hydraulic, pneumatic, or electric, serves as the driving force behind the actuator's rotational motion, delivering the required torque to accomplish tasks ranging from valve control and material handling to robotic arm articulation and indexing operations.

Air Torque Pneumatic Rack & Pinion Rotary Actuator

The Air Torque actuator is manufactured, assembled & tested in Bergamo Italy to highest of international standards and approvals. In a little over 20 years since the company was founded in 1990, the Air Torque brand of aluminium, rack & pinion and scotch yoke pneumatic actuators have become known worldwide for their high quality and reliability, with 100% of all manufacturing and construction materials sourced within Western European Countries.

Function: Spring Return, Double Acting
Body Material: Anodized Aluminium, PTFE Coating, Epoxy Coating, Stainless Steel
Rotation: 90°, 120°, 135°, 180°
Torque Levels: 8-10,000 NM
Operating Media: Dry/Lubricated Air, Inert/Non-Corrosive Gases
Pressure Rating: 2.5 Bar (36 PSI) Minimum – 8 Bar (116 PSI) Maximum
Certifications: SIL3 IEC 61508, ATEX 94/9/EC, GOST, GOST-R, EN 60529 IEC 529
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3278 Type Pneumatic Diaphragm Rotary Actuator

The Type 3278 pneumatic rolling diaphragm actuator is tailored for diverse industrial uses, serving as a rotary motion device perfectly suited for a wide array of rotary valves. Its torque output varies based on factors such as actuator area, pneumatic supply pressure, spring stiffness, travel distance, initial spring compression, and the quantity of internal springs within the actuator.

Max Torque: 730 Nm
Rotation: 90°
Options: Reversable fail action, Travel stops
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R Type Standard Duty Rolling Diaphragm Pneumatic Rotary Actuator

The Vetec Type R pneumatic rolling diaphragm actuator caters to diverse industrial needs, offering a rotary motion solution tailored for various rotary valve applications. Its torque output is contingent upon factors such as actuator area, pneumatic supply pressure, spring stiffness, travel distance, initial spring compression, and the quantity of internal springs within the actuator.

Max. Rotation 90°
Max Torque: 750 Nm
Options: Handwheel
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Frequently Asked Questions

Rotary Actuator FAQs

A rotary actuator is a mechanical device used to produce rotary motion, rotating objects around an axis, unlike linear actuators that generate linear motion along a straight path.

Rotary actuators find applications in various industries such as manufacturing, robotics, automotive, aerospace, agriculture, and more, commonly used in valve control, material handling, indexing tables, robotic arm movement, and conveyor systems.

Rotary actuators can produce angular rotation, oscillation, indexing, and continuous rotation in both clockwise and counterclockwise directions.

The main components typically include a housing, shaft, bearings, gears (if applicable), seals, and actuation mechanism (hydraulic, pneumatic, or electric).

Hydraulic rotary actuators use pressurized hydraulic fluid for high torque output and precise control, while pneumatic actuators utilise compressed air for faster response times and simpler installation.

Yes, they can usually be integrated with relative ease, especially if designed to be compatible with standard mounting configurations and interfaces.

Considerations include torque output, speed, operating environment, mounting options, duty cycle, and compatibility with control systems for optimal performance and longevity.

Advantages include compact size, high torque-to-weight ratio, precise positioning, versatility, and suitability for harsh environments.

Higher torque ratings are necessary for applications requiring heavy loads or high inertial forces, impacting the actuator's ability to rotate objects and overcome resistance.

Maintenance typically includes periodic inspections, lubrication, and replacement of parts as needed to ensure reliable performance and longevity.

They are designed to operate in varying conditions, including temperature, humidity, and exposure to dust or chemicals, with proper consideration during selection.

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Samson Rotary Actuators