Engineering cylinders, hydraulic output power and its pressure is proportional to the effective area on both sides of the linear motion of the piston-type actuator. Its function is the hydraulic energy into mechanical energy. Enter the amount of hydraulic fluid flow and pressure double acting cylinders, the output of the linear velocity and force. Common characteristics of a fuel tank project to improve the surface roughness of the cylinder, the roughness can basically reach Ra≤0.08μm. 2, the amendment roundness, ovality can ≤0.01mm. 3, to improve the surface hardness, so that by eliminating deformation, hardness HV≥4 ° 4, after processing residual stress layer, improve the fatigue strength by 30%. 5, to improve the quality of single-acting cylinders with and reduce wear and extend the life of parts, but the parts but lower processing costs. 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 sex refers to hydraulic pressure in a short time can withstand the maximum pressure of the hydraulic cylinder, 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 is under the rated pressure, so that the hydraulic cylinders are tested to the highest speed the design requirements than eight hours of continuous operation, requiring speed error at + 10%. This is a hydraulic cylinder factory inspection and type test items. flat 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.