What type of actuator is commonly used in pneumatic systems?

The commonly used actuator in pneumatic systems is the pneumatic cylinder actuator. This type of actuator is specifically designed to convert compressed air energy into mechanical motion. Pneumatic cylinders work by using the pressure of the air to drive a piston within a cylinder, allowing for linear motion. This is particularly advantageous in various industrial applications where speed, precision, and simplicity are essential.

Pneumatic cylinder actuators are compact, have a straightforward design, and can be easily controlled for a variety of tasks, from simple push/pull actions to more complex operations requiring precise positioning. They are widely favored in automation, robotics, and manufacturing processes due to their ability to operate efficiently under high speeds and with rapid cycles.

In contrast, the other actuator types listed have different operational principles and typically suit other applications. For example, solenoid actuators are generally used for quick on/off operations and are not suitable for applications needing continuous motion or force, which is critical in many pneumatic applications. Electrical motor actuators convert electrical energy to mechanical energy, which can involve more complexity and slower response times compared to pneumatic cylinders. Hydraulic piston actuators are used in situations requiring high force output, but they operate using fluids under pressure other than air, making them separate from pneumatic applications.