The Standard Cylinder is a cylindrical metal piece that guides the piston in a straight line and reciprocate. The heat is converted into mechanical energy in the engine cylinder by expansion, and the gas is compressed by the piston in the cylinder of the compressor to increase the pressure. The shell of a turbine, a rotating piston engine, and so on is usually also known as the "cylinder". The application fields of cylinders are machinery, environmental protection, metallurgy, textile, printing and dyeing, medicine, food, light industry, shipbuilding, locomotives, research and other national economic fields, which is a reliable partner for supporting market of automation system.

The thrust and tension on the piston rod are determined according to the size of the force required by the work. Therefore, when the cylinder is selected, the output force of the cylinder should be slightly remainder. If the selection of small bore, the output power is not enough, the cylinder not working properly; but the diameter is too large, not only the heavy equipment, high cost, and the gas consumption increases, resulting in energy waste. When the fixture is designed, the force increasing mechanism should be used as far as possible to reduce the size of the cylinder.