Hydraulic As a widely used technique in the future but there is a broad prospect. With the further development of the computer, the hydraulic control system and intelligent control technology, computer technology, control technology together, so it can play a role in more occasions, also can be more compact, more flexible completion expected control tasks. What hydraulic jacks works? Big cylinder and piston composed of large hydraulic lifting cylinder, lever handle, a small cylinder, small piston, consisting of a one-way manual pump. Lift the handle so small as the piston moves upward, the lower end of the small piston oil chamber volume increases, the formation of a partial vacuum jack, then the one-way valve is opened, the suction through the suction pipe from the tank; 300 jack handle firmly pressed, the small piston down, Under the small piston chamber pressure increases, the one-way valve is closed, one-way valve is opened, the oil through the pipeline input lift cylinder chamber, forcing large living moving upward hydraulic jacks, lifting the top thereof. Lifting the handle suction again, the check valve closes automatically, so the oil can not turn the clock back, so as to ensure the weight does not fall on their own. Reciprocating lever handle continuous thin jack, you can keep the oil hydraulic lifting cylinder into the lower chamber, so that the weight is gradually rising. If you open the valve, the lower chamber of the lifting cylinder oil through the pipeline, shut-off valve back into the tank, the weight moves downward, which is the working principle of hydraulic jacks. Hydraulic jacks _ 300 Lu (certified) _ Jack Lu force provided by the hydraulic machinery plant in Texas. 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.