We are the most experienced bolt ultrasonic company in the world

We are the only dedicated Bolt Ultrasonic in the world

Boltstress G5 Ultrasonic bolt tension measurement

Our core business is the measurement of bolt tension, we do this using either our own equipment or the clients

We both ensure that all bolting is tightened to the correct level before going live and then offering on-going re-monitoring to analyse joint performance in service.

Specialised techNicians

We can measure using any brand of Ultrasonic Monitoring equipment.

Our Technicinas are fully trained in the use of the Boltstress G5, the Dakota Minimax, the Dakota MAX, the Boltscope 1 & 2, the Boltmike 1, 2 ∓ 3. the Norbar USM 1 & 2 and the Raymond Bolt Gauge

Consulting and training

Having been involved in the bolting industry since 1991 we have a great deal of...

Ancilliary bolt tightening equipment

Although our focus is on measurement our findings normally lead to corrective...

Specialised Equipment

Whenever an application can not be solved using standard torque or tensioning...

Reduced Shutdown Durations

Boltstress Ultrasonics

Preventing bolted joint failure
Specialised Bolting Solutions through

Boltstress G5

A simpler, lighter instrument that has the functions to complete most tasks. It is limited to bolts up to 2.5 metre's in length but how often do you come across anything longer ?

Ultrasonic bolt tension measurement

We supply services & products to measure bolt tension, bolt stress, elongation or strain. This gives insight into true joint performance and...

Bolted Joint performance condition monitoring

After using Ultrasonics to ensure original joint integrity our products and services may also be used to monitor on going joint performance in service...

Boltstress G6

The G5 broke so many boundaries when it set the new benchmark for ultrasonic bolt tension monitoring, it was difficult too envisage where a

Specialised tightening systems

Since 1991 Boltstress personnel have been involved in 1000's of applications. This has lead to an in depth knowledge of the many tightening ...

Practical experience based consultancy

Our consultancy service uses the combined strengths of our technology and practical experience to recommend solutions.

Calculate Your Required Torque Using our app

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Recent Articles

Many Mills experience liner and liner bolt failures, these are costly and can effect the viability of some operations. Boltstress Ultrasonics has eliminated these at several mine sites.

The failure rates heat exchanger (HX) and pressure vessel (PV) flanges is the worst/highest of all joints in the Oil, Gas and Petrochemical industries. Our aim is to eliminate these and provide faster bolt tightening tooling & methods.

Most mill operators are familiar with (and regularly go through) a process known as re-torque.

Re-torque is an expensive exercise resulting in lost production, but is believed to be necessary in order to avoid bolt failures that cause unplanned shutdowns.