Hydraulic jack in work which not only requires the use of relatively high quality hydraulic jacks on the line, you also need a high-quality working media - to use with hydraulic oil. The quality of the working medium of the hydraulic oil directly affects the performance of hydraulic jacks, so that the quality of the hydraulic oil must be guaranteed, Xiao Bian today as we outlined in the working medium is the hydraulic jacks - Hydraulic oil. For the use of hydraulic jacks performance requirements are: 1. Compressibility: Compressibility is relatively small to ensure the accuracy of the drive. 2. The viscosity-temperature characteristics: there must be an appropriate viscosity and with small changes in temperature. 3. lubrication: oil film on the surface of the material has a strong adhesive force manual hydraulic jack, anti-extrusion film strength is also high. 4. stability: not due to heat, oxidation or hydrolysis varies, and long service life. 5. Compatibility: metal, seals, rubber hoses, paints and other good compatibility. 6. rust and corrosion: corrosive iron and metal is small. 1, single-acting hydraulic jack single-acting hydraulic jack can also be called a one-way hydraulic jack, jack for separate hydraulic jacks, it needs a way to cope with an electric pump to work, usually for a small trip, small tonnage hydraulic jacks. Single-acting hydraulic jack main feature is the small body length, compact large-tonnage hydraulic jacks, more suitable for use in a small place; 2, double-acting hydraulic jack double-acting hydraulic jack can also be known as a double-acting hydraulic jack, It is also a separate hydraulic jack jack jack factory direct, single-acting hydraulic jack with a different single-acting hydraulic jack manufacturer, it relies on a double-acting hydraulic pump station to provide power jack, under normal circumstances, double-acting hydraulic jack for large stroke, large tonnage hydraulic jacks, double-acting hydraulic jack load tonnage substantially between 100T-1000T. Hydraulic jacks according to work mainly on the jack into two categories, each of which has unique properties, the scope of application are not the same wish, we can select the appropriate hydraulic jacks in use according to different needs. Single-acting hydraulic jack jack manufacturers _ _ Lu Yuzhong Hydraulic power is provided by the Texas Lu hydraulic machinery plant. 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!