Product Introduction
Double acting hollow jack: also known as tension top, through core top, or hollow plunger top, it has the characteristics of easy operation and long service life. It is widely used in pre-stressed construction, bridge construction, highway and railway construction, power plant construction, equipment lifting, mechanical disassembly, and other aspects. The center hole can be used for power lines, steel bars, etc. to pass through, and the center hole diameter can be processed according to user needs. The one-way jack is single acting, with spring return, suitable for short travel. If a large travel of the hollow jack is required, please choose a double acting hollow jack.

RRH double acting hollow plunger jack (double acting hollow jack). If the hollow top stroke is required to be short, please choose RCH single acting hollow jack. It can be customized according to customer requirements