lifting

Double acting hollow plunger lifting hydraulic jack can be equipped with a two-way manual oil pump or a two-way electric oil pump. Because of the through hole in the middle, the hollow jack not only has the lifting capacity of a general hydraulic jack, but also has the stretching and tensioning functions that the ordinary jack does not have. The through hole allows cables, steel ropes and other shafts to pass through. The hollow roof has double functions and hydraulic retraction. The double acting hollow plunger lifting hydraulic jack is the first choice for various large-scale projects. It has the characteristics of convenient operation and control. The new technology and structure make the hollow roof Jacks are safer and last longer.