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Linear actuators


Extremely powerful linear actuator able to create reliable movement even in very harsh environments. Comes with LINAK integrated controller (IC) and ideal for harsh outdoor environments.


Tough applications require equally tough actuator solutions. The actuator LA37 is specifically developed for heavy-duty applications in harsh environments, where there is a need for high lifting capacity and holding force.

The LA37 offers the well-known LINAK quality, guaranteeing you a maintenance-free product with a long lifetime.

  • Max. thrust: 15,000 N
  • Max. speed: 10 mm/s
  • Stroke length: 100-600 mm

The LA37 is available with these options: IC Basic, IC Advanced, LINbus, Modbus and Parallel as well as the two CAN bus protocols CAN SAE J1939 and CANopen. Furthermore, several of these options include PLUS+1 Compliance.

Learn more about IC – Integrated Controller.

LA37 data sheet

View the data sheet as an online magazine or download the PDF.

LA37, LA36 and LA35 MODBUS data sheet

View the data sheet as an online magazine or download the PDF.

Actuator LA37 user manual

This user manual will tell you how to install, use, and maintain your LINAK actuator LA37.



Focus on construction

When it comes to performance in rugged and harsh environments, LINAK actuators withstand the conditions, even on heavy duty construction machinery.

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Product catalogue presenting an overview of the LINAK solar product range - designed with all challenges in mind.

TECHLINE product overview

Explore the wide variety of tough and powerful TECHLINE products. Built to last, built for hard work and built for work in harsh environments.

How do linear actuators work?

A common type of linear actuator is an electric linear actuator. It is made up of three main components: spindle, motor and gears. The motor can be AC or DC depending on the power needs and other influencing factors.

Once a signal is sent by the operator, which can be through a control as simple as a button, the motor converts the electric energy into mechanical energy rotating the gears connected to the spindle. This rotates the spindle and causes the spindle nut and piston rod to travel outwards or inwards depending on the signal to the actuator.

As a rule of thumb, a high thread count and smaller spindle pitch will cause slow movement but a much higher load capacity. On the other hand, a low thread count, and higher spindle pitch, will favor fast movement of lower loads.

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Visit the Actuator Academy™
Explore the aspects of what makes an actuator ideal for use with industrial machinery and discover the technology behind it.

Welcome to the LINAK Actuator Academy™


What are the different types of electric linear actuators?

There are many types and sizes of electric linear actuators. From small and compact to fit in tight spaces, like in wheelchairs, to large and powerful to move heavy items like a wheel loader engine hood. In addition to size and power, there are also many different designs of electric linear actuators.

The original design has a motor housing that is outside of the gear and spindle profile. But when space is limited, an inline actuator is used so that the motor only extends the shape of the profile. For desks and some medical applications, lifting columns are used for an inline motor housing with two and three stage options.

Since the founder and CEO of LINAK, Bent Jensen, made his first electric linear actuator in 1979, the company has continued to develop new actuators and refine the innovative technology behind them to improve movement solutions for several industries.

LINAK designs and manufactures many types of linear actuators and lifting columns with various speeds, stroke lengths, and capacities. From the compact, inline LA20 to the robust LA36, LINAK actuators are built to fit almost any application.

With an almost endless list of customization options to help design an actuator specifically to fit unique applications, the range of LINAK actuators is even greater than the vast product range listed.

LINAK products

What is a linear actuator?

A linear actuator is a device or machine that converts rotational motion into linear motion and linear movement (in a straight line). This can be done through electric AC and DC motors, or the movement can be powered by hydraulics and pneumatics.

Electric linear actuators are a preferred option when precise and clean movement is needed. They are used for all types of applications where tilting, lifting, pulling or pushing with force is needed.

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Move on - go electric!

Learn about the advantages of actuator solutions compared to hydraulic systems.

Online Magazine


What is a linear actuator used for?

Actuators can be found anywhere, in homes, offices, hospitals, factories, farms, and many other places. Our electric actuators bring movement to the office and home with adjustable options for desks, kitchens, beds, and couches. In hospitals and medical centers, you will find actuators adding movement to hospital beds, patient lifts, surgery tables and more.

For industrial and rugged environments, electric linear actuators can replace hydraulic and pneumatic solutions found in agriculture, construction, and in industrial automation equipment.

LINAK business areas

Why use a linear actuator?

Electric linear actuators increase efficiency and give users precision movement through a variety of control options and accessories. Control options for electric linear actuators include handsets, footswitches, desk controls, computer software, mobile apps and much more.

With no need for hoses, oils, or valves, electric linear actuators require no maintenance and create a safe environment for users. High-quality electric actuators are also put through a variety of tests that push the actuators to extremes. This is done to ensure optimal performance at any given time in any situation. They also are designed, along with their accessories, to be easily mounted and installed in a variety of applications.

Making it easy for anyone to add precision movement where they need it. Being electric adds opportunities for additional smart features like CAN bus (LINAK offers CAN SAE J1939 and CANopen for actuator controls). Integrated Controller (IC) solutions can provide various position feedback options, virtual limits, soft start and stop, current limitation, and adjustable speed.

CAN bus - How to see which CAN bus version you are running

At LINAK® we currently supply actuators with two different CAN bus software versions - v1.x or v3.x.

Determine the actuator version with the LINAK BusLink software
Connect the actuator to the BusLink software to verify the correct software version. When the actuator is connected you can find the ‘Connection Information’ tab. In the example below, the LA36 CAN bus actuator has version 3.0.

For further information, please see the BusLink service interface chapter in the CAN bus user manual.

BusLink version 3.0

What is the difference between version 1.x and version 3.x?
On CAN bus v 3.0 we have introduced several new functionalities - such as hardware addressing, dynamic speed adjustment, soft start/stop commands and increased compatibility (125 kbps, 250 kbps, 500 kbps and Autobaud).
Please note that the soft start/stop must now be defined in the CAN bus command (in version 3.x). If left at 0 it will result in no ramping. If set to 251 it will use the actuator’s predefined factory settings. Any number in between will set the ramping time.

For further information, please see the Communication chapter in the CAN bus user manual.

BusLink quick guide
Find a guide on how to use the BusLink program for your actuator by clicking the BusLink icon.
BusLink logo

IC parallel actuator system - How to add, remove, replace an actuator

How to add, remove or replace an actuator in your IC™ parallel actuator system.

To add or remove an actuator:

  1. Connect all actuators to BusLink to configure the number of actuators in your parallel system
  2. Before running the system, let the system initialize itself

To replace an actuator:

  1. Power the system off and replace the actuator
  2. Power the system on and the new actuator will automatically catch up to the position of the remaining actuators

For more information about initializing your parallel IC system, please visit How to initialize your IC™ parallel actuator system.

IC parallel actuator system - How to initialize the system

How to initialize your IC™ parallel actuator system.

Initialize the system in two ways:

  1. Let the system initialize itself via Recovery mode, where the actuators automatically run in steps of 2000ms on and off for a full stroke length
  2. Initialize the system manually by using the BusLink software. Only the actuator in ‘position lost’ needs to be initialized by running the actuator to its mechanical endstop in one direction

For information about troubleshooting on your parallel IC system, please visit How to troubleshoot on your IC™ parallel actuator system.

IC parallel actuator system - How to troubleshoot on the system

How to troubleshoot on your IC™ parallel actuator system.

If an actuator has lost its position, the parallel system will enter Recovery mode and initialize itself. If the system is unable to run in recovery mode, please continue this troubleshooting process:

  1. Check cabling, power supply and communication signals between actuators
  2. Connect each actuator to the BusLink software and look at error codes to identify which actuator has caused the system to stop

If it is an overcurrent error code, restart the system by running it in the opposite direction.

If these error codes are registered, actuator replacement is necessary: H-bridge fault, switch mode power supply fault, or hall sensor failure.

Still having trouble? Please contact your local LINAK® supplier.

For information about initializing your parallel IC system, please visit  How to initialize your IC™ parallel actuator system.


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