Large Stud Diameter Tensioners

Hydraulic tensioning is the ideal method for tightening bolted connections. Hydraulic tensioning eliminates inaccuracies and helps achieve correct bolt loading in critical connections. At HTI, we’ve been building hydraulic tensioners and nuts since 1986.

HTI's standard tensioners are made for studs up to 4" / M100 in diameter.  HTI also makes tensioners (and hydraulic nuts) for stud diameter larger than 4" / M100.  Our largest application to date has been for a M425 (16.7") buttress-thread stud.

A typical application for very large stud diameter tensioners is on a large forging press.

As with all of HTI’s tensioners, our large stud diameter tensioners feature trouble-free, no-leak, ultra-reliable, lo-friction seals, an overstroke indicator, and a fail-safe overstroke protection design, and are available in a variety of finishes.

If you have a bolt tensioning application for a large stud size, we can design a tensioner to fit your exact specification, including vertically or radially limited applications.