CAMOZZI, Italy

The Italian CAMOZZI cylinder is composed of a cylinder barrel, end cap, piston, piston rod, and sealing components. The inner diameter of the cylinder barrel represents the output force of the cylinder. The piston should perform smooth reciprocating sliding inside the cylinder, and the surface roughness of the cylinder inner surface should reach Ra0.8 μ m.

Italian CAMOZZI cylinder structure:

A cylinder is composed of a cylinder barrel, end cap, piston, piston rod, and sealing components. Its internal structure is shown in the figure:

Schematic diagram of CAMOZZI-SMC cylinder in Italy

1) Cylinder barrel

The inner diameter of the cylinder represents the output force of the cylinder. The piston should perform smooth reciprocating sliding inside the cylinder, and the surface roughness of the cylinder inner surface should reach Ra0.8 μ m.

SMC and CM2 cylinder pistons are equipped with composite sealing rings to achieve bidirectional sealing, and the piston and piston rod are connected by rivets without the need for nuts.

2) End cap

There are intake and exhaust ports on the end cover, and some also have buffer mechanisms inside the end cover. The end cover on the rod side is equipped with a sealing ring and a dust ring to prevent air leakage from the piston rod and prevent external dust from entering the cylinder. A guide sleeve is installed on the end cover of the rod to improve the guiding accuracy of the cylinder, withstand a small amount of lateral load on the piston rod, reduce the downward bending of the piston rod when it extends, and extend the service life of the cylinder. The guide sleeve usually uses sintered oil containing alloy and forward leaning copper castings. In the past, malleable cast iron was commonly used for end caps. To reduce weight and prevent rust, aluminum alloy die-casting was often used, and brass material was used for micro cylinders.

3) Piston

The piston is a pressurized component in the cylinder. To prevent air leakage between the left and right chambers of the piston, a piston sealing ring is installed. The wear-resistant ring on the piston can improve the guidance of the cylinder, reduce the wear of the piston sealing ring, and reduce frictional resistance. Wear resistant rings are made of materials such as polyurethane, polytetrafluoroethylene, and synthetic resin for fabric clamping. The width of the piston is determined by the size of the sealing ring and the necessary length of the sliding part. The sliding part is too short, which can easily cause early wear and jamming. The materials commonly used for pistons are aluminum alloy and cast iron, while pistons for small cylinders are made of brass.

4) Piston rod

The piston rod is the most important load-bearing component in a cylinder. High carbon steel is usually used, with a surface treated with hard chrome plating, or stainless steel is used to prevent corrosion and improve the wear resistance of the sealing ring.

5) Sealing ring

The sealing of components at the point of rotation or reciprocating motion is called dynamic sealing, while the sealing of stationary parts is called static sealing.

There are several main methods for connecting the cylinder and end cap:

Integral type, riveted type, threaded connection type, flange type, pull rod type.

6) When the cylinder is working, it relies on the oil mist in the compressed air to lubricate the piston. There are also a small number of lubrication free cylinders.