BOLTIGHT® HYDRAULIC TENSIONERS

FOR PRECISE, EVEN PRELOADING

NORD-LOCK GROUP, A HOTBED OF INNOVATION AND ENGINEERING

Nord-Lock Group offers the technologies you need to meet your bolting challenges. In 1982, the original Nord-Lock® cam-locking technology that truly secures bolted joints was developed.
Since then, our range of technologies and assembly expertise has become the most comprehensive on the market, incorporating Superbolt® mechanical tensioners , Boltight® hydraulic tensioners and Expander® pins.

All solutions are developed and manufactured in-house, ensuring that they meet the highest industry standards.
Our dedicated team of experts works closely with customers all over the world.

How does it work?

Using a high-pressure hydraulic system and a predetermined pressure, Boltight hydraulic tensioners ensure axial elongation of the bolt. The nut is then screwed down to the surface of the clamped part, precisely locking the bolt's load.

BOLTIGHT SERVICE SCOPE

We use a quality management system to ensure that the reasonable needs and expectations of our customers are realized in the quality of the products and services we provide.

Our operations are LRQA certified for quality assurance and the environment to ISO 9001:2015.

TOOLS FOR EVERY APPLICATION

Examples of solutions for all applications and sectors:

For 20 years Boltight has been at the forefront of hydraulic tensioning solutions. Our tensioners provide fast, precise and safe solutions for simultaneously tensioning and releasing single or multiple bolts.

We understand that every industry has its own challenges. In our wide range of products, you can find solutions for specific needs in sectors such as oil & gas, subsea, power generation, wind and industrial.

Whether you have a standard flange, a limited-access application, need an extra load or a permanent replacement for standard nuts, we have the solution. Boltight designs and manufactures hydraulic tensioners specific to customer requirements. Our product range also includes a variety of reliable pumps (hand-operated, electric and pneumatic), hoses, connectors, fittings and ultrasonic load-measuring equipment to complete the overall system.

Need a customized solution for a specific need?

For many applications, we can modify an existing design, ensuring a cost-effective solution.

If one of our existing tools can't be modified, we'll design and manufacture equipment exactly to your specifications. We manufacture tensioners for the bolt range from size M8 to M400.

THE CHALLENGE

BOLT PRECISION ON LARGE BOLTED ASSEMBLIES

As bolt sizes increase, so do loads. Operators are faced with the requirement of bolt load accuracy to prevent bolts from loosening, leaking or suffering critical machine and equipment failure.

THE SOLUTION

BOLTIGHT HYDRAULIC TENSIONERS ENSURE PRECISE, EVEN PRELOADING

Using a high-pressure hydraulic system and a predetermined pressure, Boltight hydraulic bolt tensioners ensure axial elongation of the bolt. The nut is then screwed down to the surface of the clamped part, precisely locking the bolt's load. It's fast, safe and reliable!

SAVING TIME AND MONEY EVERY TIME

Downtime for repairs and maintenance is costly, as personnel and equipment are idle until the work has been completed. By tensioning bolts with a precise preload, downtime can be dramatically reduced.

Boltight hydraulic tensioners:

• Easy to use
• Precise
• Designed to simultaneously tighten single or multiple bolts
• Save time and money