1. QYC270 jack is a core-through front-end jack with the inside tool anchorage being able to be used repeatedly,
2. It can automatically tighten and release the tool anchorage wedge while operating and is mainly used in the single stressing of various bonded and unbounded tendons.
3. It was designed with our new sealing element. It has an anti-turning devices which will prevent the jack from rotating during stressing.