1,Straight stroke pneumatic actuator is sealed by the piston seal ring, which is divided into single action and double action; Single action: the pressure of the gas source is on the tray, and in the same time, the compressed spring moves and gas source pressure take effect on the effective area of the tray to produce the thrust force on or up or down. Without gas pressure, the thrust force is released from the spring recovery to move, driving the push rod up or down. Double actions: When air pressure act on the piston cylinder, one side of the piston intake, and outlet on the other side. The pressure of the gas source in the effective area of the piston thrust drives the push rod to move up or down; by switching between an air inlet and an air outlet, the original air inlet turns into air outlet, and the original air outlet turn into air inlet, to achieve move the push rod backward.
2,Long stroke, with a maximum of up to 410mm.