THE BOLTIGHT TECHNOLOGY

Boltight has been at the forefront of hydraulic bolt tensioning for over a decade. Our tensioning tools provide fast, accurate and safe solutions to tighten and loosen multiple bolts simultaneously.

How does a hydraulic tensioner work?

A tensioner is attached to the bolt or stud
High pressure hydraulics are used to axially stretch the bolt
Bolt stretch/elongation creates the clamping force, as the bolt is stretched, the nut lifts clear of the flange
An access window in the tensioner allows the nut to be turned down with very little friction
When the hydraulic pressure is released, the nut traps the stretch in the bolt retaining the ‘load’

Eliminate the need to overcome friction, making Boltight faster and safer than torquing

Multiple tensioners can be used simultaneously, increasing efficiency and offering a more uniform tightening procedure than other methods

Minimizes potential for uneven loading or gasket compression, which can occur with torque tightening methods

Less physically demanding operations lead to reduced operator fatigue, increasing worker safety

BOLTED INSIGHTS

Count on our knowledge in every step of your journey, across installation, maintenance, and after-market support.

Pulttivinkit

Mikä on kuormituksen siirtokerroin?

Käytettäessä hydraulisia pulttikiristimiä tuottamaan pulttiliitokseen kontrolloitu esikuormitus täytyy tarkastella useita tekijöitä, joista yksi on kuormituksen siirtokerroin.

Pulttivinkit

The Experts: The making or breaking of bolted joints

What is Hooke’s Law and why is it crucial to bolted joints? Hooke’s Law relates to the accurate tightening of bolted joints. When examining a bolt’s behaviour, the axial force is plotted against th...

Tuntemus

Kiertäminen vai venyttäminen – siinäpä pulma

Mikä on paras menetelmä ruuviliitoksen kontrolloituun kiristämiseen? Bolted kilpailuttaa hydraulisen kiertämisen vääntömomentin avulla ja hydraulisen venyttämisen. Ja voittaja on...

BOLTIGHT HYDRAULIC TENSIONERS

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Boltight hydraulic tensioners offer consistent and repeatable results for applications where accuracy is critical.

The technology

We are the industry leader in custom engineered hydraulic solutions to suit any application.

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