YD series jack structure and working principle:
· YD series is design for Expressway prestressing, which is special equipment for erect or replace bearing. It to be used with high pressure
oil pump matched. This series products’ advantages are high voltage, long holding time, easy to use, Internal friction is small (<3%) and so
on. It appropriate for construction of pretensioning system and lifting or pulling system. At present three kinds of model in this series. They are
YD400-160, YD500-180,YD600-180. We also provide product customization.
Hydraulic Bottle Jack for bulid High speed railway