Which directional control element is commonly used to control double-acting cylinders?

Two-position two-way solenoid valve, two-position three-way solenoid valve, three-position five-way solenoid valve, etc.

1. Two-position two-way solenoid valve: there are two working positions. By controlling the on-off state of the electromagnet, the air intake and exhaust of the cylinder can be controlled, and the unidirectional movement of the cylinder can be realized. This kind of solenoid valve is simple in structure and convenient to use, and is widely used to control the positive and negative rotation of the cylinder.

2. Two-position three-way solenoid valve: The two-position three-way solenoid valve has two air outlets and one air inlet. By controlling the on-off state of electromagnet, the cylinder can move and stop in one direction. When the electromagnet is energized, the cylinder sucks air and the cylinder pushes it; When the electromagnet is de-energized, the cylinder exhausts and returns. This kind of solenoid valve is often used to control the stop position of the cylinder.

3. Three-position five-way solenoid valve: it has three working positions and five gas paths. By controlling the on-off state of the electromagnet, the two-way movement and stop of the cylinder can be realized. This kind of solenoid valve has a complicated structure, but its function is flexible, which is suitable for the situation that the cylinder needs to be reversed and stopped.