A hydraulic pump or a hydraulic cylinder intake air. Air compression or expansion will cause the piston sliding or crawling. Remedy is to check the pump high-pressure hydraulic cylinder processing 160 tons, set up special high-pressure exhaust cylinder 450 tons, fast operation of the entire exhaust stroke back and forth several times. When the piston rod flexion-extension, when a double-acting cylinder liquid generate a force or movement from either end of the piston. The outer diameter of the piston seal and the cylinder diameter must be able to deal with problems between the movement direction and at the same time. In addition, there may also be a double-ended rod cylinder through the rear of the cylinder piston rod cover adds a stretching exercise. High pressure hydraulic cylinder 80 t | Texas aerospace hydraulic | Yangjiang high-pressure hydraulic cylinders supplied by Dezhou City aerospace hydraulic machinery plant. Dezhou City aerospace hydraulic machinery plant (www.sdhtyeya.com) is an industry leader in Shandong Dezhou, hydraulic equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Texas aerospace hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the Texas aerospace hydraulic better future.