YSD 系列液压千斤顶 Hydraulic Jack （YSD series）

YSD型系列液压千斤顶主要应用于各种先张法台座张拉预应力筋和各种混凝土箱涵的顶举，顶推施工，还可以用于更换橡胶支座以及大型构件的同步顶举施工。该型千斤顶活塞或油缸上带有自锁螺母，安全性比液压自锁千斤顶更好。
YSD series hydraulic jack is mainly used in various pre-tensioning PC tendons stressing on the pedestal and concrete box culverts jacking and incremental launching constructions,and also can be in the synchronous jacking constructions of the rubber bearing replacement and large components.It has an internal locking device which allows the Hydraulic Jack to be locked at a specific position and frees up the need for hydraulic pump.