The hydraulic cylinder is very important to hydraulic machinery. It acts as an executive element in the entire hydraulic machine, and the hydraulic cylinder in the whole process converts hydraulic energy into mechanical energy. With the development and progress of science and technology, the innovation and development of hydraulic cylinder components are very rapid. Actively discover and solve real-life problems, start research, innovation, and then improve production safety and economic efficiency, while fuel consumption.

　　 With the continuous development of my country's hydraulic industry, the market supply and demand relationship of domestic cylinder products has changed in recent years, and the supply and demand relationship of my country's cylinder industry has changed from a long-term "general shortage". The emergence of China's cylinder network has become a bridge in the information of the cylinder industry, and in the future, it will bring brilliance to the development of cylinder companies.

　　 The piston part of the hydraulic cylinder is used to extend out of the cylinder under working conditions. Of course, it will be affected by oxides and acid gases, which requires us to apply an appropriate amount of oil to protect it, so as not to use the piston as a load-bearing component. Erosion may be broken at work. Secondly, it is necessary to open the box. Since foreign matter enters the hydraulic cylinder for a long time, the friction increases, and the hydraulic oil also has a certain life span. It will not change the oil damage or erosion in the hydraulic cylinder for a long time. It is better to prevent, so the speed is suitable for the operation of the hydraulic cylinder, no more than 2 m/s, which can prolong the service life of the hydraulic cylinder to protect the mechanism and safety. The internal buffer device is very effective for the protection of the hydraulic cylinder.

　　The hydraulic cylinder is mainly used to support heavy objects for a long time. It can still support heavy objects when the oil pressure is taken out, which is safe and reliable. It can be used for underwater, single action, loading and retracting. The nut self-locking makes the load safer, especially in large-scale projects. It is easy to operate and self-locking jacks. The safety pressing device is designed. The built-in unloading valve prevents overload and protects the self-locking jacks. Convenient and safe operation. The input of the hydraulic cylinder is the flow and pressure of the fluid, and the output is the linear motion speed and force. The piston of the hydraulic cylinder can complete line reciprocating motion, and the output linear displacement is limited. The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy for reciprocating motion. The hydraulic cylinder basically consists of a cylinder and a cylinder head, a piston and a piston rod, and a sealing device.