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Linear actuators convert rotational motion into linear motion, providing precise and controlled movement in a straight line. They are widely used in various industrial applications due to their ability to handle high loads, offer precise positioning, and provide reliable performance. Linear actuators come in different types, including electric, pneumatic, and hydraulic actuators, each suited for specific applications and requirements.
If you would like help in selecting the correct actuator for your application, our linear specialists are on hand and can assist you with your selection.
High-Performance actuators have powerful planetary roller screw drives and are based on the same telescopic push/pull capability as the electric actuator. We have High-Performance linear actuators available complete with motors offering forces up to 500kN.
Electric actuators provide precise, accurate, and powerful backward or forward linear motion. Their ability to convert rotary energy and signals into linear motion makes them a unique type of actuator. We supply a complete set with a basic electric motor, typically 24v DC or 12v DC, but AC Servo Drive versions are also available with gearboxes to provide complex motion profiles with a variable choice of speed and force.
We supply different versions of positioning actuators that provide different performance characteristics. These actuators typically offer repeatability positioning from a few microns to 100 microns, with loads from a few grams to 1000s of kg.
Linear actuators work by using various drive mechanisms, such as screws, belts, gears, rods, and motors, to convert the rotary motion of a standard motor into smooth linear motion.
All these are referred to as components, and they play a major role in how linear actuators work.
Electric Motor: The actuator is driven by an electric motor, which generates rotational force. Gearbox assemblies are typically used for this purpose.
Gearbox: In between the motor and the actuator, there can be a gearbox. The Actuators' force can be controlled by their gearboxes, which determine the speed and torque. There are different combinations of force/speed resulting from different gearing setups.
Screw Drive: During rotation, motion is converted into linear motion via the screw drive. As the output shaft of the gearbox rotates, the screw spins. In order to spin the screw, a captive block or nut must be mounted on it and move along its length.
Rod: Rod actuators have a rod assembly that is mounted to the nut and moves up and down the lead screw with the nut.
External housing: Most actuators are encased by an external housing that keeps the components perfectly aligned as well as protects them from the elements.
Other components: You may find other electronics within an actuator. This can vary a lot from model to model but some common components are end limit switches, potentiometers, and circuitry to support other functions.
To learn more about linear actuators, read our blog on How Linear Actuators Work today.
Linear actuators can be used in applications involving lifting, lowering, sliding, adjusting, and tilting objects. Linear actuators are very versatile and can be used in different industries. Some of the industries include:
Food processing
Packaging
Factory automation
HVAC
Materials handling
Agriculture
Industrial machinery
Machine tools
Industrial automation
Construction and heavy machinery
At ACORN industrial services, our offerings extend beyond just maintenance of linear bearings. We are committed to providing other linear motion products to meet your industrial needs:
Linear actuators are a type of actuator that converts rotational motion in motors into linear or straight push/pull movements. They offer a potentially simple and quick solution for an X-Y or X-Y-Z stage. Belt-driven actuators are very useful for long stroke applications, where strokes in excess of 10m are possible.
Linear actuators move objects to and fro in a straight line, while rotary actuators move objects at any angle required in a circular pattern. They can rotate at any set of angles required.
The most efficient type of actuator is the electric actuator. They offer more precise motions and can be tightly controlled.
No, linear actuators are not self-locking, but a brake on the motor or on the guide system will give you the precise location and positioning required for your application.
An actuator is a device that converts energy into motion. It is a critical component in various mechanical systems, enabling the movement and control of mechanisms and machinery. Actuators can be powered by different sources, including electric current, hydraulic fluid, or pneumatic pressure.