We are offering mechanical jack. Specifications chinacoal05a.apply to the complementary set, an axle railway bridge installation, and vehicles, equipment, heavy lifting with.B.the structure is simple, easy to use, safe and reliable, and many machine etc. It is a kind of hoisting tools that are widely used. C.principle of work the machine is manual type one type of hoisting tools, compact structure, reasonable use a joystick to move up and down swinging the claw, with the tooth claw, promote the linkage with rack up or down, and then the weight.Technical parametersmodel max lifting capacity of the top max lifting capacity of foot-hoot lifting height total height (include the height of the machine) foot-hootqd5 5t 2.5t 160mm 345mm 43mmqd10 10t 5t 180mm 410mm 45mmqd15 15t 7.5t 280mm 580mm 60mm