Metallurgical cylinder is a hydraulic actuating element specially applied in metallurgical industry. The structural composition mainly includes cylinder barrel, piston, piston rod, seals and so on. The cylinder barrel is usually made of high-strength, high-temperature and corrosion-resistant materials to adapt to the harsh working environment of the metallurgical industry. The piston is closely connected with the piston rod to realize linear motion under the action of hydraulic oil. The seals ensure that the hydraulic oil inside the cylinder will not leak and maintain the normal working pressure of the cylinder. The working principle is to convert hydraulic energy into mechanical energy through the hydraulic system. When the high-pressure hydraulic oil enters the rodless chamber of the cylinder, it pushes the piston to drive the piston rod to extend and realize the specific action; when the hydraulic oil enters the rodded chamber, the piston drives the piston rod to retract. Metallurgical cylinders have the following characteristics: - High temperature resistance: metallurgical process is often accompanied by high temperature environment, metallurgical cylinders can work stably under high temperature conditions to ensure normal operation of equipment. - Good corrosion resistance: In the face of corrosive substances that may exist in the metallurgical industry, such as various chemical reagents, metal oxides, etc., the cylinders have good corrosion resistance to prolong the service life. - Large load capacity: metallurgical equipment usually needs to handle a large amount of heavy materials, metallurgical cylinders have a strong load capacity and can withstand huge working loads. - High reliability: In the metallurgical industry of continuous production, the reliability of the equipment is crucial. Metallurgical cylinders have high reliability and stability after strict quality testing and optimized design, which reduces the probability of failure. Metallurgical cylinders are widely used in various equipments in the metallurgical industry, such as the tilting mechanism of the steelmaking converter, the pulling and straightening device of the continuous casting machine, the hydraulic system of the rolling mill, etc., which provide powerful power support for metallurgical production.