Linear actuators are a common type of electric actuator, widely used in industrial automation, mechanical equipment, medical devices, and other fields. The main function of linear actuators is to convert rotary motion into linear motion, thereby achieving pushing, pulling, lifting, and other operations on objects. In the market, there are many different models and specifications of linear actuators, and below we will introduce some mainstream models. 1. Linear motor A linear motor is an electric actuator that converts electrical energy into linear motion. It uses linear motor technology to achieve linear motion through the action of an electromagnetic field. Linear motors have the advantages of high speed, high precision, low noise, etc., and are suitable for applications that require high-speed, high-precision linear motion. 2. Linear stepper motor A linear stepper motor is an electric actuator that converts rotary motion into linear motion. It uses stepper motor technology to achieve linear motion by controlling the stepper motor's step angle. Linear stepper motors have the advantages of simple structure, convenient control, low cost, etc., and are suitable for applications that require low-speed, medium-precision linear motion. 3. Linear servo motor A linear servo motor is an electric actuator that converts electrical energy into linear motion. It uses servo motor technology to achieve precise control of linear motion through a feedback control system. Linear servo motors have the advantages of high speed, high precision, fast response, etc., and are suitable for applications that require high-speed, high-precision linear motion. 4. Linear hydraulic cylinder A linear hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into linear motion. It uses hydraulic cylinder technology to achieve the pushing and pulling motion of the piston through the pressure of hydraulic oil. Linear hydraulic cylinders have the advantages of high load-bearing capacity, adjustable speed, and suitability for high-load applications, and are suitable for applications that require high torque and high thrust linear motion. 5. Linear pneumatic cylinder A linear pneumatic cylinder is an pneumatic actuator that converts pneumatic energy into linear motion. It uses cylinder technology to achieve the pushing and pulling motion of the piston through the pressure of compressed air. Linear pneumatic cylinders have the advantages of fast speed, low cost, and easy maintenance, and are suitable for applications that require medium to small torque and thrust linear motion. These are some mainstream models of linear actuators, each with its own characteristics and suitable applications. When choosing a linear actuator, it is important to consider specific application requirements and working environments to ensure that the linear actuator can operate properly and achieve the expected results. We hope that the above introduction can help everyone better understand the mainstream models of linear actuators.