cylinder

Cylinder Product Overview

A cylindrical piece of metal that guides the piston to reciprocate in a straight line in a cylinder. The working medium converts heat energy into mechanical energy by expansion in the engine cylinder; The gas receives piston compression in the compressor cylinder and increases the pressure.

Cylinder composition

1) Cylinder cylinder

The inner diameter of the cylinder represents the output force of the cylinder. Piston to do a smooth reciprocating slide in the cylinder, cylinder surface roughness should be up to Ra0.8 m.

SMC and CM2 cylinder piston using a combination of sealing ring to achieve bidirectional sealing, the piston and piston rod with riveting links, without nuts.

2) Cylinder end cover

The end cover is provided with an inlet and outlet, and some are also equipped with a buffer mechanism inside the end cover. Sealing ring and dustproof ring are provided on the side cover of the rod to prevent air leakage from the piston rod and prevent external dust from mixing into the cylinder. The rod side cover is provided with a guide sleeve to improve the guide accuracy of the cylinder, bear a small amount of transverse load on the piston rod, reduce the piston rod bending, prolong the service life of the cylinder. Guide sleeves are usually made from sintered oil-bearing alloy, tipped copper castings. In the past, the end cover was usually made of malleable cast iron. In order to reduce weight and prevent rust, aluminum alloy was often used for die casting.

3) Cylinder piston

The piston is the pressurized part of the cylinder. To prevent the left and right cavities of the piston from channeling each other, a piston sealing ring is provided. The wear ring on the piston can improve the guide of the cylinder, reduce the wear of the piston seal ring and reduce the friction resistance. Wear-resisting ring is made of polyurethane, polytetrafluoroethylene, cloth synthetic resin and other materials. The width of the piston is determined by the size of the seal ring and the length of the necessary sliding section. The sliding part is too short, easy to cause early wear and jam. The material of piston is usually aluminum alloy and cast iron. The piston of small cylinder is made of brass.

4) Cylinder piston rod

Piston rod is the most important stressed part in cylinder. High carbon steel, hard chrome plated or stainless steel is usually used to prevent corrosion and improve the wear resistance of the sealing ring.

5) Cylinder sealing ring

Rotary or reciprocating movement of the parts of the seal is called dynamic seal, static parts of the seal known as static seal.

The connection methods of cylinder and end cover are mainly as follows:

Integral type, riveting type, thread connection type, flange type, pull rod type.

6) When the cylinder works, the piston should be lubricated by the oil mist in the compressed air. There are also a small number of non-lubricating cylinders

Cylinder size

Pneumatic stop cylinder: 63*200

Pneumatic horizontal brake cylinder: 100*125

Air damper cylinder: 160*2000 125*2300

Air control switch cylinder: 63*125

Cylinder physical drawing