Pneumatic cylinder also known as the air cylinder is a mechanical device that uses the compressed gas power to produce force in reciprocal linear direction. It uses the air pressure to produce that force. Just as in a hydraulic cylinder where a piston being disc moves in a certain direction, this direction is given by a pneumatic cylinder. Engineers now more often prefer pneumatic cylinders because they are quite, safe and clean. They do not include the usage of any liquid that on leakage contaminates the surrounding. The operating liquid being a gas makes it the top favorite of many engineers.
- Single acting cylinder- the singular action cylinder produces air which the piston use to move in one specified direction only and come to the home position after it ends. This cylinder has some limited extension provided because of the compressed spring being taken up.
- Double acting cylinder- the double acting cylinder of this type uses the compressed air to more In two directions i.e. extend and the retract strokes. The cylinders have to two strokes for allowing air in i.e. one is for outstroke and the other being of instroke. The stroke length of this device isnt limited however piston size can be bending. Additional calculations should be done in every case.
- Multiple type- the multiple type or the telescopic cylinders more commonly known as telescopic cylinders can be single and double acting cylinders. The major benefit which this device gives is the longer stroke which a single cylinder wouldn’t have provided. It also works well being a double cylinder because it uses a longer piston rod. One of the drawbacks of this cylinder is the enhanced potential for the piston flexion due to a very segmented design of piston rod.