Guide to Linear Actuators Types and Key Advantages

In today’s world, automation and precision control have become an integral part of many industries. Whether it’s in manufacturing, automotive, or robotics, actuators are at the heart of these systems. They provide the necessary mechanical motion for everything from assembly lines to vehicles.

In this article, we’ll explore what an actuator is, actuator definition, and take a deep dive into the various types of linear actuators, including AC actuators, turbine actuators, and electric actuators.

What Is an Actuator? — Actuator Definition

An actuator is a device that converts energy into motion. In simple terms, it’s a mechanical part that makes something move. An actuator receives a control signal (usually electrical, hydraulic, or pneumatic) and uses that energy to move a physical part of a system. They are widely used in applications that require automated or precise movement, such as robotic arms, valves, conveyors, and even vehicles.

Actuators come in many forms, each suited to a specific task. The most common types include linear actuators, rotary actuators, and various specialized actuators, such as turbine actuators or electric actuators. But in this article, we’ll focus primarily on linear actuators and the subtypes that offer different ways of controlling motion.

Actuator Types: Linear, AC, Turbine, and Electric Actuators

1. Linear Actuators

A linear actuator is an actuator that moves in a straight line, rather than producing a rotary motion like other actuators. These actuators are ideal for applications that require controlled, precise motion, such as industrial machinery, medical devices, and even home automation systems.

Linear actuators typically work by converting rotary motion (from an electric motor) into linear motion using a mechanism such as a screw or belt. They are often used in applications that require a push, pull, or lift motion. Types of linear actuator are electric linear actuators, hydraulic linear actuators, and pneumatic linear actuators.

2. AC Actuators

AC actuators run on alternating current (AC) electricity, which makes them a popular choice in many industrial and consumer applications. These linear actuator systems are often used in systems that require continuous or high-powered motion, such as air conditioning units, large machinery, and automated assembly lines.

AC actuators work by converting electrical energy from an AC power source into mechanical motion. Their main advantage is their ability to maintain consistent performance over a longer period of time, making them a reliable choice for industrial systems. The main benefits of AC actuators are high power efficiency, durability, and cost-effectiveness.

3. Turbine Actuator

A turbo actuator is a specialized actuator commonly used in the automotive and aerospace industries. Its main function is to control the movement of the wastegate of a turbocharged engine, regulating the exhaust gas flow and optimizing performance.

Turbocharger actuators are designed to operate under extreme conditions of high temperature and pressure. These actuators can be electric, hydraulic or pneumatic, and they ensure that the turbocharger operates efficiently, improving engine performance and increasing fuel economy. The main advantages of turbocharger actuators are enhanced engine performance, improved fuel efficiency, and durability suitable for high temperature and pressure.

4. Electric Actuators

An electric actuator is an actuator that uses electrical energy to drive mechanical motion. Unlike pneumatic or hydraulic actuators, which rely on air or fluid pressure, electric actuators are driven by electric motors.

These actuators provide precise motion control and are available in a variety of types, such as Linear Actuator JC35L30, Linear Actuator JC35N3, etc. They are often used in systems that have strict requirements for accuracy, reliability, and ease of integration. Electric actuators have a wide range of applications, from robotics to home automation and medical equipment.

Linear Actuators Key Advantages

1. Precise Motion Control

One of the key linear actuator benefits is precise motion control. Electric linear actuators offer accurate positioning and repeatable movement, making them ideal for automation systems, robotic arms, and medical equipment. Compared to hydraulic options, they reduce complexity and deliver smoother, more reliable performance in tasks requiring fine motion accuracy.

2. Energy Efficiency

Among the major advantages of linear actuators is their energy-saving capability. Electric linear actuators consume power only during motion, unlike pneumatic or hydraulic systems that require continuous pressure. This design reduces overall energy costs, making them ideal for eco-friendly applications in manufacturing, home automation, and adjustable furniture systems.

3. Low Maintenance Requirements

Another strong point in favor of electric linear actuators is their low maintenance. With fewer moving parts and no fluid leaks, they demand minimal upkeep. This leads to lower operational downtime and cost over time. This benefit is especially important in hard-to-reach or critical installations where reliability is essential.

4. Safe and Quiet Operation

A clear linear actuator benefit is safe and quiet operation. Electric models eliminate the noise and hazards associated with fluid systems, making them ideal for home and hospital use. Their built-in safety features, like limit switches and overload protection, ensure user safety and system durability under continuous use.

5. Compact and Flexible Design

The compact and modular nature of electric linear actuators allows for installation in tight or custom spaces. Their flexible stroke lengths and mounting configurations support diverse design needs. This is one of the top advantages of linear actuators in industries like automotive, aerospace, and ergonomic furniture manufacturing.

6. Environmentally Friendly

Electric linear actuators are an eco-conscious choice. Unlike hydraulic systems, they don’t rely on oils or fluids, which reduces the risk of spills and contamination. This environmentally friendly aspect supports sustainable manufacturing and helps organizations meet increasingly strict environmental regulations and green building standards.

Conclusion

Understanding what actuators are and the various types available, such as linear actuators, AC actuators, turbine actuators, and electric actuators, is essential to choosing the right solution for your needs. Whether you need the precision of a linear actuator, the power efficiency of an AC actuator, or a dedicated system for engine control such as a turbine actuator, choosing the right actuator ensures reliable and efficient operation.

As automation continues to develop in various industries, the role of actuators will only grow, providing more precise, energy-efficient, and versatile solutions. In the JIECANG linear drive product platform, we not only provide linear actuator related services, but also provide drive and intelligent control solutions for related industries such as smart office, medical care, smart home, and industrial automation.

Linear Actuators FAQs：

1.What is an actuator used for?

An actuator is a part of a device or machine that helps it to achieve physical movements by converting energy, often electrical, air, or hydraulic, into mechanical force. Simply put, it is the component in any machine that enables movement.

2.What is an actuator in a computer?

An actuator is often part of a computer control system. The actuator is a mechanical device or motor which carries out the action or decision made by the control system. For example the lens of this digital camera moves in and out according to how much zoom is wanted. This movement is controlled by an 'actuator'.

3.How many actuators are in a car?

Prepare to be surprised: a standard vehicle can house anywhere from 30 to over 100 actuators, depending on its complexity and level of luxury. This article will explore the various types of actuators, including solenoid, electric linear, and rotary, and discuss their critical applications within your vehicle.