The gas in the two holes of the cylinder is communicated.

Yes, there are ***4 holes, and every two holes are the same. The two smaller holes with adjusting screws are called buffer holes, which are used to adjust the buffer speed of the cylinder to the bottom or top. If the cylinder piston is screwed to death, it will not reach the end position. Two large, completely through holes are the working ports of the cylinder. The port here is for air intake and the port there is for air exhaust.

Connection mode and introduction of cylinder

Normal connection mode: the steam source is connected to the air inlet of the solenoid valve, and both sides of the air inlet are used for exhaust. The steam hole at the upper end is connected to the lower end of the cylinder, and B is connected to the upper end of the cylinder. Connect the solenoid valve plug so that the pneumatic door can be opened and closed at a distance. For local operation, you can press the steam channel button on the solenoid valve.

Cylinder manufacturers will go through fluid design, and structural damage may cause fouling and affect the service life of cylinders. Moreover, from the point of view of pneumatic system, the parts such as air pipe and valve are matched, and the effect of changing a cylinder alone is not great. And if the speed is too fast, you need to consider buffering, and the built-in buffer is definitely not enough. Considering your own needs, if you need high speed, choose a dedicated high-speed cylinder.