Multi-stage bolt tensioner

Innovative dual-end interface design ensures that multiple stretchers can operate in series or parallel simultaneously, reducing the number of oil pipes and saving costs.

One size fits multiple bolt specifications.

Applicable sizes range from M24 to M100 (or 3/4")'-4) Extra-large galvanized bolts, piston stroke customizable.

The product boasts simplicity and wide applicability, maximizing efficiency, and is lightweight and agile. It achieves an accuracy of 0.5% on calibration pumps.