What are the types of pneumatic cylinders?

According to the structure of commonly used pneumatic cylinders, they can be divided into four types:

Piston
The single piston rod pneumatic cylinder has a piston rod at only one end.

Plunger
(1) The plunger pneumatic cylinder is a single-acting pneumatic cylinder, which can only move in one direction by air pressure, and the return stroke of the plunger depends on other external forces or the weight of the plunger;
(2) The plunger is only supported by the cylinder liner without contacting the cylinder liner, so that the cylinder liner is very easy to process, so it is suitable for long-stroke pneumatic cylinders;
(3) The plunger is always under pressure during operation, so it must have sufficient rigidity;
(4) The weight of the plunger is often large, and it is easy to sag due to its own weight when placed horizontally, causing unilateral wear of the seal and the guide, so its vertical use is more advantageous.

Telescopic
The telescopic pneumatic cylinder has two or multi-stage pistons. The sequence of the extension of the pistons in the telescopic pneumatic cylinder is from large to small, while the order of no-load retraction is generally from small to large. The telescopic cylinder can achieve a longer stroke, while the length is shorter when retracted, and the structure is more compact. This kind of pneumatic cylinder is often used in construction machinery and agricultural machinery.

Swing
Swing pneumatic cylinder is an executive element that outputs torque and realizes reciprocating motion, also known as swing pneumatic motor. There are two forms of single blade and double blade. The stator block is fixed on the cylinder, and the blade and the rotor are connected together. According to the direction of oil intake, the blades will drive the rotor to reciprocate.