Repair process: 1, with oxygen - acetylene flame grilled scratched site (control temperature, avoid surface annealing), single-acting cylinders, the metal surface oil seepage perennial baked, grilled to no sparks. 2, will scratch the surface treatment area with angle grinder, grinding depth 1 mm or more, and polished grooves along the rail, preferably dovetail. Drilling deeper scratches ends, change the forces. 3, with cotton wool dipped in acetone or ethanol to clean the surface. Hydraulic pressure resistance and durability with the progress of the times, the development of industry, Sanming cylinders, some of the rapid development of hydraulic machinery industry is one of the following will introduce you to the two natures of hydraulic cylinders: Pressure sex, double-acting cylinders, pressure-resistant durability means the maximum pressure in the hydraulic cylinders can withstand a short time, the maximum allowable pressure Pmax or Proof pressure Pt said Texas custom cylinders, Pt = 1.5 Pn. for military Generally defined as Pt = 2 (2 ~ 2.5) Pn. Durability refers hydraulic capacity can be long-running rated conditions. durability test is under the rated pressure, so that the subjects in order to design the most demanding hydraulic cylinder speed more than eight hours of continuous operation, requiring speed error at + 10%. This is a hydraulic cylinder factory inspection and type test items. engineering cylinder _ Lu Hydraulic (Online) _ Sanming cylinders supplied by Lu hydraulic equipment plant in Texas. Texas Lu force hydraulic machinery plant (www.luliyeya.com) is an industry leader in Shandong Dezhou, hydraulic machinery and parts, over the years, the company implement 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 better future.