Hydraulic pressure resistance and durability with the progress of the times, the development of industry, the rapid development of some industrial machinery hydraulic cylinder is one of the following will introduce you to both the nature of the hydraulic cylinder: pressure resistance, durability of pressure refers to the maximum pressure of the hydraulic cylinder can withstand a short time, by the maximum allowable pressure Pmax or pressure test pressure Pt, said, Pt = 1.5 Pn. on military general provisions for Pt = 2 (2 ~ 2.5) Pn. Durability refers to the ability of the hydraulic cylinder rated conditions can a long-running. durability test refers to the rated pressure cylinder manufacturers, hydraulic cylinders so that the subjects in order to design the most demanding speed than eight hours of continuous operation, requiring speed error at + 10%. This is a hydraulic cylinder factory inspection and type test items. cylinders as the main component machining cylinder cylinder, single pillar mining, hydraulic support, barrel and other products, and its processing quality directly affect the overall product life and reliability. Cylinder high processing requirements, the inner surface roughness is Ra0.4 ~ 0.8μm, concentricity, wear resistance demanding. The basic characteristics of the cylinder is the deep processing of thin cylinders, its processing has been plagued by processing staff. Using rolling processing, leaving the surface because the surface layer of residual compressive stress, helps a closed surface microcracks, impede erosion expansion. Thereby enhancing the corrosion resistance of the surface, and can delay fatigue cracks or expansion tank, thus increasing the fatigue strength of the cylinder. By roll forming a hollow cylinder, the surface layer of cold rolled hardened layer, reducing the elastic and plastic deformation of the contact surface grinding vice, thereby improving the wear resistance of the inner wall of the cylinder, while avoiding the cause of the grinding burns. After rolling, the reduction of the surface roughness can be improved with the nature. Engineering cylinders, hydraulic power Lu (certified), provided by the Texas Lu cylinder power plant hydraulic equipment. Texas Lu force hydraulic machinery plant (www.luliyeya.com) is a leader in Dezhou, hydraulic machinery and parts, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lu Hydraulic leadership with the staff warmly welcome all inquiries negotiations to create Lu hydraulic force a better future.