Pneumatic Actuators

A reliable source for Linear Actuator information and leading Linear Actuator Companies & Manufacturers.

In general, pneumatic actuators are affordable, have rapid response times and are simple and easy to control; however, they are also noisy, and their position is difficult to control. Read More…

Pneumatic Actuators Pneumatic actuators are devices that position control valves using linear motion by converting various forms of energy, typically air pressure, into mechanical energy.

Leading Manufacturers

Bethel, CT  |  203-778-2727

Del-Tron Precision, Inc. was founded in order to serve the needs of automated equipment manufacturers for innovative, high quality and reasonably priced anti-friction linear bearings and associated products such as valve actuators. Del-Tron has maintained the same high level of service by continually developing new products that deliver important advantages to its customers.

Request A Quote

Del-Tron Precision, Inc. $$$

Battle Creek, MI  |  800-537-9940

Utilized in a variety of applications and industries, the products designed and manufactured at Burr Engineering & Development include ball screw actuators and similar mechanisms. Standard models or customized designs are available to ensure that wherever the part will be, whether in construction equipment, a platform table or a satellite dish positioner, it will be a perfect fit.

Request A Quote

Burr Engineering & Development Company $$$

Cutchogue, NY  |  888-321-9178

Ultra Motion designs and manufactures precision electromechanical actuators, and related products, for multiple industries including aerospace, medical, industrial automation, defense, research, and more. Our areas of expertise include extreme power density, fully integrated closed loop servo actuators, multi-turn absolute position sensors, and challenging environments like space, deep sea, vacuum, etc.

Request A Quote

Ultra Motion $$$

Bethel, CT  |  800-447-2042

Tusk Direct’s specialty is linear motion components. We offer slides, bearings, lubricants and assemblies compatible with pneumatic or electric actuators and actuator systems. Our actuator parts and accessories comply with rigorous standards, and are satisfaction guaranteed and shipped promptly. Get in touch with our customer service representatives to see what we may do for you! Let us work for you!

Request A Quote

Tusk Direct, Inc. $$$

Saanichton. BC  |  206-347-9684

Our linear actuators are at the top of the market and on the leading edge of innovation. If you need a new design or modification to an existing design, we are the true professionals that you need to call. We have the capability to meet all of your specified requirements. Come and visit our website to learn more about what we do or contact one of our representatives to get started planning your next project.

Request A Quote

Actuonix Motion Devices $$$

Lansdale, PA  |  800-313-4753

SKF Motion Technologies is a leading global supplier of quality linear motion components. Our wide range of linear guides consist of linear ball bearings and profile rail guides with ball or roller recirculation and nearly unlimited axial motion. In addition, precision rail guides with constant rolling element contact, feature highest precision. Call us today for all of your linear motion needs.

Request A Quote

Ewellix $$$
placeholder image Del-Tron Precision, Inc. Burr Engineering & Development Company Ultra Motion Tusk Direct, Inc. Actuonix Motion Devices Ewellix

There are many different types of pneumatic actuators, including tie rod cylinders, grippers, and pneumatic artificial muscles, but the main type of pneumatic linear actuator is a pneumatic valve actuator.

One important feature of a pneumatic actuator is the addition of a controller. A controller can be added to pneumatic actuators in order to position the valve according to the demands of the operator. The controller sends an output signal to the positioner that represents the desired position of the valve. The controller is pre-set to maintain a valve position and quickly adjusts in order to correct any deviation of a controlled variable from the setpoint.

With this and many other optional and beneficial features, pneumatic actuators can be used for a multitude of applications, including pushing, lifting, rotating or transporting products or equipment during various manufacturing processes. Industries that benefit from using pneumatic actuators include automotive, aerospace, biotechnology, pharmaceuticals, food processing, material handling, and electronics.

Friction Free Pneumatic Actuator Friction Free Pneumatic Actuator - Del-Tron Precision, Inc.

A typical pneumatic valve actuator mainly consists of a piston, or stem, a spring and valves, also called ports. Operating through a combination of air pressure and spring force, pneumatic actuators transmit energy through the stem.

A rubber diaphragm is used to create two separate air chambers in the housing; air is supplied to the upper chamber through an opening in the top of the actuator housing. The bottom chamber houses the spring, which applies force to the diaphragm to halt mechanical stops in the upper chamber.

A local position indicator is attached to the stem about midway through the bottom chamber in order to indicate the valve's position, which is controlled by the upper chamber's varying air pressure. The positioner is a complex device: on the outside is an input connection for the control valve, a supply air connection, a supply air input connection, a supply air vent connection and a feedback linkage; and on the inside is a network of air lines, linkages, valves, necessary adjustments and electrical transducers.

Without air, the spring holds the valve fully open: with an increasing air supply the air pressure‘s force on the diaphragm begins to overpower the spring's force and causes the valve to close. The positioning of the valve relies upon the amount of air supplied to the top chamber. Once the desired position is achieved, the positioner stops changing the air pressuring and holds the valve in place.

Pneumatic Actuator Informational Video