China Coal Mechanical Jacks
hand type heavy lifting track jack Mechanical steel jack /rack steel jack
Lever Rack Mechanical Jacks
Mechanical jack is also known screw jack and can be used upside
down. widely used for maintenance of railway vehicles, bridge
installation, mining, construction support, and lifting of vehicles
and equipment, has the advantage of simple structure, easy to use,
safe and reliable, which is a widely used lifting tool.
1.Top cap 2.Square flat key 3.Rocker 4.Small gear 5.Small bevel
gear 6.Screw 7.Lifting sleeve 8.Copper nut 9.Big bevel gear 10.Ball
flat key 11.Thrust bearing 12.Shell 13.Base.
1.Before using, it must be checked if the jack is normal; the
components are flexible, filling oil, and correctly estimate the
weight of heavy objects; choose the appropriate ton jacks, and
avoid overload use.
2.Adjust the rocker stays on the teeth method, first hand directly
on the rocker clockwise, so that the top heavy lifting sleeve rises
3.Insert the handle into rocker hole, moving the handle back and
forth , the weight rise. When the red line appears on the lifting
sleeve, it should immediately stop moving the handle. To decrease
the reverse direction when the pole teeth adjusted, weight starts
1.Keep the body surface clean, and periodically check the internal
structure is intact, so that the small gear of inner rocker is
flexible, reliable and lifting sleeve down easily.
2.The friction surface between lifting sleeve and housing must
always be oiled, and other injection hole should be periodically
3.In order to take into account the use of safe, avoid overloading,
sick of work, not multi-station use, in case danger.
Min.start jacking height
Lifting height for the handle turn a ring(mm)
The handle pull to lift full load(N)
The number of operator
The turning radius R(mm)