What is a linear actuator?

• How does a linear actuator work?
• Types of linear actuators
  • Electric linear actuator
  • Hydraulic actuator
  • Pneumatic actuator
  • Mechanical linear actuator
  • Piezoelectric actuator
• Range of electric linear actuators from LINAK

How does a linear actuator work?

When the motor rotates, it drives the lead screw, causing the nut to move along the screw thread, thereby translating rotational motion into linear motion. Linear actuators are commonly used in a wide range of applications such as robotics, industrial automation, automotive systems, medical devices, and aerospace technology, where precise linear movement is required.

They come in different types, including electric, hydraulic, pneumatic, and mechanical, each with its own advantages and suitability for different tasks and environments.

Types of linear actuators

There are several types of linear actuators, each with its own mechanism for converting energy into linear motion.

Each type of linear actuator has its own advantages and limitations, and the choice depends on factors such as the required force, speed, precision, environment, and cost considerations of the specific application.

Need help figuring out which linear actuator matches your needs? See our guide on actuators and how to choose the type for you.

Electric linear actuator

These actuators use electric motors to generate linear motion. They can be further categorised into various subtypes such as screw-driven, belt-driven, or gear-driven actuators. Electric linear actuators are known for their precision, flexibility, and ease of control.

Hydraulic actuator

Hydraulic actuators use pressurised fluid to generate linear motion. They are often used in heavy-duty applications where high force is required, such as in construction equipment, industrial machinery, and aerospace systems.

Pneumatic actuator

Pneumatic actuators use compressed air to generate linear motion. They are commonly used in applications where rapid and repetitive motion is required, such as in automation systems, robotics, and assembly lines.

Mechanical linear actuator

Mechanical linear actuators use mechanisms like cams, levers, or linkages to convert rotary motion into linear motion. They are simple in design and are often used in low-force applications where precision is not critical. Mechanical actuators are great at converting rotary motion into linear motion.

Piezoelectric actuator

Piezoelectric actuators utilise the piezoelectric effect to generate a short linear motion. They are known for their high precision and fast response times, making them suitable for applications such as nano-positioning, microscopy, and optical instrumentation.

Range of electric linear actuators from LINAK

LINAK offers a variety of electric linear actuators designed to meet different requirements across various industries. Some of the electric linear actuators in the LINAK product lineup include:

Needing further assistance?

Questions about which linear actuator is right for you? Need guidance on actuator speed, choosing between dc or ac motor, or looking for actuators systems?
We are here to help. Contact us today.