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Linear Actuators

Linear actuators are part of a motion control system that produces the desired motion. An actuator is a device that creates physical movement by converting various forms of energy to rotary or linear mechanical motion. A linear motion actuator is defined as a device that converts various forms of energy into linear motion or straight push/pull movements. Actuators (electric cylinders) are mainly thrust producing devices that use either an acme or ball screw as the driving mechanism.

Electromate supplies a range of linear actuators, including rodless and rod style actuators for servo and stepper motion control. We stock products from top manufacturers like Tolomatic, E-DRIVE, and Dyadic Systems. Each model has unique capabilities and applications to suit your needs. Browse through our selection of linear actuators via the category links below.

Linear Actuators we Carry

Three different rod actuatorsThree different rod actuators

Rod Actuators

Rod type actuators produce more force and are highly tolerant of dirty environments, although they require a bearing structure to carry the load. The thrust element or rod moves out of the end of the actuator as motion takes place.

Set of different size rodless actuatorsSet of different size rodless actuators

Rodless Actuators

In this actuator, the actuator housing completely surrounds the screw, which provides a load bearing and guidance structure. Rodless actuators carry the load without the need for external guides and are particularly suited for transporting loads at long stroke lengths. Rodless actuators are difficult to seal and thus are not ideal for dirty or wet environments.

Other Types of Actuators

Screw Actuators

There are several different types of screw actuators including lead screw actuators, ball screw actuators, and planetary roller screw actuators.

Lead Screw Actuator

Lead screw actuators have a threaded nut that moves with a screw, providing both simple construction and lowest cost. This type of actuator is mainly used when an industry needs a cost-effective solution. Lead screw actuators are quiet, flexible, corrosion-resistant, and have some self-locking capabilities.

Ball Screw Actuator

Ball screw actuators are essentially lead screw actuators that use ball bearings. They are usually chosen due to their faster rates of speed with continuous duty cycles and ability to carry higher loads. They are more expensive but offer less friction when compared to lead screw actuators.

Planetary Roller Screw Actuator

Planetary roller screw actuators are lead screw actuators that use threaded rollers surrounding the main threaded shaft. This actuator is the most expensive option, but also the most durable. Because their load-carrying rollers don’t contact each other, planetary roller screw actuators typically achieve higher speeds than ball screws.

Belt Actuators

Belt actuators are actuators based on belt drives and are often used where speed is important but with limited accuracy. These actuators operate under the same principle as the conveyor belt system; the belt drive translates rotary motion to linear motion via a timing belt. Belt actuators are designed for high speeds with long distances and are perfect for fast positioning and handling tasks

Integrated Actuators

Integrated actuators, as the name suggests, integrate a rod style actuator into a motor housing to eliminate the need for coupling. These actuators provide the lowest size and weight with easier maintenance, but at a higher cost.

Industries & Applications

What is a linear actuator used for? They are ideally suited for applications where tilting, lifting, pulling, or pushing with pounds of force are required. Common applications for linear actuators include:

Frequently Asked Questions

What is a linear actuator?

A linear actuator is defined as a device that converts various forms of energy into linear motion or straight push/pull movements. Actuators (electric cylinders) are mainly thrust producing devices that use either an acme or ball screw as the driving mechanism. Linear actuators allow the device to slide, tilt, and lift as needed.

How do linear actuators work?

Electric linear actuators use electrical energy to enable movements in a straight line. A piston or rod moves back and forth based on control signals. Linear actuators use a motor that generates high-speed rotational motion and a gearbox that slows its impact. This increases the torque used to turn a lead screw, which results in linear motion of a shaft or drive nut. A 12V DC motor is often used in linear actuators but other motors can also be used. Switching the polarity of the connection from motor to the battery would make the motor rotate in the reverse direction.

Why use a linear actuator?

Electric linear actuators increase efficiency and enable safe, secure, and precise motion.

How do I choose a linear actuator?

When choosing a linear actuator, follow these steps:

  1. Determine the amount of force needed
  2. Determine the distance the actuator must travel
  3. Determine the speed
  4. Choose a type of linear actuator based on your specific project specifications and requirements
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IMA33 RN10 (1 Stack, 230 VAC) by Tolomatic

IMA33 RN10 (1 Stack, 230 VAC)

IMA Series, Size 33, 18" (457 mm) Max Stroke, 175 lbf (800 N) Max Cont. Thrust, 230 VAC Winding

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IMA33 RN10 (3 Stack, 230 VAC) by Tolomatic

IMA33 RN10 (3 Stack, 230 VAC)

IMA Series, Size 33, 18" (457 mm) Max Stroke, 425 lbf (1900 N) Max Cont. Thrust, 230 VAC Winding

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IMA44 BN10 (230 VAC) by Tolomatic

IMA44 BN10 (230 VAC)

IMA Series, Size 44, 18" (457 mm) Max Stroke, 875 lbf (3890 N) Max Cont. Thrust, 230 VAC Winding

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IMA44 RN10 (230 VAC) by Tolomatic

IMA44 RN10 (230 VAC)

IMA Series, Size 44, 18" (457 mm) Max Stroke, 825 lbf (3700 N) Max Cont. Thrust, 230 VAC Winding

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IMA55 BN10 (230 VAC) by Tolomatic

IMA55 BN10 (230 VAC)

IMA Series, Size 55, 18" (457 mm) Max Stroke, 1475 lbf (6560 N) Max Cont. Thrust, 230 VAC Winding

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IMA55 RN10 (230 VAC) by Tolomatic

IMA55 RN10 (230 VAC)

IMA Series, Size 55, 18" (457 mm) Max Stroke, 1375 lbf (6100 N) Max Cont. Thrust, 230 VAC Winding

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IMA33 BN10 (3 Stack, 230 VAC) by Tolomatic

IMA33 BN10 (3 Stack, 230 VAC)

IMA Series, Size 33, 18" (457 mm) Max Stroke, 450 lbf (2000 N) Max Cont. Thrust, 230 VAC Winding

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ERD15 BNM10 by Tolomatic

ERD15 BNM10

ERD Series, Size 15, 24" Max Stroke, 200 lbf Peak Thrust, 40.2 in/s Max Speed

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ERD20 BNM10 by Tolomatic

ERD20 BNM10

ERD Series, Size 20, 24" Max Stroke, 500 lbf Peak Thrust, 19.7 in/s Max Speed

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ERD22 RNM10 by Tolomatic

ERD22 RNM10

ERD Series, Size 22, 16" Max Stroke, 850 lbf Peak Thrust, 20 in/s Max Speed

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ERD22 BNM10 by Tolomatic

ERD22 BNM10

ERD Series, Size 22, 39.4" Max Stroke, 900 lbf Peak Thrust, 49 in/s Max Speed

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ERD25 RNM10 by Tolomatic

ERD25 RNM10

ERD Series, Size 25, 16" Max Stroke, 1500 lbf Peak Thrust, 23 in/s Max Speed

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RSA24 RN10 HT by Tolomatic

RSA24 RN10 HT

RSA-HT Series, Size 24, 18" Max Stroke, 1556 lbf Peak Thrust

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ERD25 BNM10 by Tolomatic

ERD25 BNM10

ERD Series, Size 25, 39.4" Max Stroke, 1750 lbf Peak Thrust, 24 in/s Max Speed

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RSA50 BNM10 ST by Tolomatic

RSA50 BNM10 ST

RSA-ST Series, Size 50, 48" Max Stroke, 1926 lbf Peak Thrust

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