This machine is oil as the medium, this equipment must be prepared oil and maintenance work, in order to avoid blockage or leakage single-acting jack, affect the results. d) a new set of hydraulic jacks or long, because there is more air cylinders memory, at the beginning of use, the piston rod may occur slight sudden jump phenomenon can be reciprocated hydraulic jack load 2-3 times to exclude air chamber. Long idle jack, do not work long-term because the seals caused by hardening of the seal, thus affecting the life of hydraulic jacks, hydraulic jack when not in use so a month to hydraulic jack load reciprocating motion 2-3 times . Thin jack belong to one kind of separate hydraulic jack jack 20 tons -2000 tons, smaller, may have a greater ability to work the jack, particularly for use in space bridge position jack jack thin narrow place, and has a light and flexible, top force and other functions, the products are widely used in electric power, chemical, steel, bridges, machinery, and other enterprises, and to play its infinite power. Thin jack Lifting capacity: 5T-150T. Lifting height: 6-64mm. Maximum operating pressure: 70MPa. Thin jack, jack, long hydraulic force provided by the Dezhou City, Long hydraulic equipment factory. Long Dezhou City of hydraulic equipment factory (www.longliyy.com) strong, credible, in Dezhou hydraulic equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hydraulic and you work long into the brilliant, for a better future!