Hydraulic cylinders are hydraulic energy into mechanical energy, make a linear reciprocating motion (or swing movement) of the hydraulic actuators. Simple structure, reliable work. Use it to achieve reciprocating motion, can be removed from deceleration devices, and no transmission gap, smooth movement of the jack cylinder, so widely used in various mechanical hydraulic system. Hydraulic cylinder output force and the effective area of ??the piston and the pressure is proportional to both sides; consisting essentially of hydraulic cylinders and cylinder head, piston and piston rod, seals, cushioning device component and exhaust. Cushioning device and the exhaust depending on the specific application and set fuel tanks, other devices are essential to the hydraulic cylinder failure, the most problematic is difficult to judge at what time the foreign body into the hydraulic tank. After entering a foreign body, such as the outer surface of the piston sliding lip fitted with double-acting hydraulic cylinder seals, then work the lip seals to scrape foreign body engineering cylinder pressure test standard, which is to avoid scratching advantageous. However, 0-ring piston mounted with its ends is a sliding surface, foreign matter is sandwiched between this sliding surfaces, easy to form scars. Way foreign matter into the cylinder are the following. Lu force hydraulic cylinder hydraulic cylinder _ h_ Yingkou Lu Lu of hydraulic force provided by the hydraulic machinery plant in Texas. Texas Lu force hydraulic machinery plant (www.luliyeya.com) strong, credible, in Dezhou hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lu Hydraulic and you hand into the brilliant, for a better future!