pneumatic actuaotr

The air source pressure comes into the cylinder body between the two pistons from air entrance (2) and pushes the

pistons toward the end of the cylinder body. The air between the pistons and the ends of the cylinder body is released from air entrance (4). Meanwhile the racks of pistons rotate the output shaft anticlockwise (gear wheel)

simultaneously, whereas if the air source pressure comes into the ends of the cylinder body from air entrance (4) and pushes the pistons toward each other with the air between two pistons released from air entrance (2), the output shaft (gear wheel) would be driven by the racks of the pistons simultaneously to rotate clockwise. (if the pistons are

assembled in different direction from each other, the output shaft would turn out to rotate in inverse direction, namely the double acting reverse DL type)

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