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Linear actuators

LA21

The LA21 is a small yet powerful industrial electric linear actuator designed for fast and precise positioning. Featuring an integrated controller, its compact form and broad customisation options make it ideal for applications where space is limited but performance is critical.

LA21

The LA21 actuator offers a compact and high-performance solution for applications where installation space is limited – without compromising on power, speed, or precision. With up to 3,500 N force, stroke length up to 800 mm, and speeds up to 85 mm/s, it enables fast and reliable movement where larger actuators simply will not fit.

Built for harsh environments, the LA21 withstands vibrations, moisture, chemicals, and extreme temperatures. Featuring robust metal gears, a proven housing design, and an integrated brake, it ensures long-lasting reliability and consistent performance.


Key features:

  • Compact and clean design
    The three-part motor housing encloses the spindle and components tightly, minimising space usage. Straight or angled cable options simplify installation in confined areas.

  • High performance
    Available in five load categories from 500 N to 3,500 N, with speeds up to 85 mm/s for fast, precise movement. Choose the configuration that best fits your application.

  • Reliable under pressure
    Withstands dust, water, and high-pressure cleaning (up to 90°C at 320 bar). Rated up to IP66 during operation and IP69K when idle.

  • Flexible built-in options
    Stroke lengths from 50 mm (70 mm for IC versions) up to 800 mm, with multiple mounting options for seamless integration.

  • Multiple power options
    Operates on 12 V, 24 V, or 48 V, allowing easy integration into various system architectures.

  • Intelligent movement
    Supports integration with intelligent control systems for enhanced positioning and feedback capabilities.

Proven across industries, the LA21 is ideal for agricultural machinery, construction, vehicles, and industrial automation. Wherever space is limited but performance, reliability, and speed are essential, the LA21 delivers a compact, high-quality solution.


Product and communications options

Image from a video about the LINAK actuator LA21 play-icon

New compact actuator delivers big performance in tight spaces

LA21 data sheet

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

LA21 actuator user manual

This user manual will tell you how to install, use, and maintain your LINAK LA21 actuator.

Standard interface user manual

This manual guides you through installing and setting up your actuator without built-in controller.

I/O™ interface user manual

This manual guides you through installing and setting up your actuator with our I/O™ interface.

EtherNet/IP™ user manual

This manual guides you through installing and setting up your actuator with EtherNet/IP™.

IO-Link® user manual

This manual guides you through installing and setting up your actuator with IO-Link®.

Modbus® TCP/IP user manual

This manual guides you through installing and setting up your actuator with Modbus® TCP/IP.

Modbus® RTU user manual

This manual guides you through installing and setting up your actuator with Modbus® RTU.

PROFINET user manual

This manual guides you through installing and setting up your actuator with PROFINET.

CANopen® user manual

This manual guides you through installing and setting up your actuator with CANopen®.

CAN SAE J1939® user manual

This manual guides you through installing and setting up your actuator with CAN SAE J1939®.

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