We are the most experienced ultrasonic bolting company in the world

We are the only dedicated ultrasonic bolting company globally

Rio Tinto
Exxon Mobil
Leyton Group Limited
Snowy River Hydro
Evolution Gold
FL Smidth
Metals Exploration
UGL Group
Auckland University
Sino Iron
Boltstress G5 Ultrasonic Bolt Tension Tool

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.

Trained Bolt Torque Technician

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

Bolt Torque Measurement Professionals

Consulting and training

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

Boltstress Measurements

Ancilliary bolt tightening equipment

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

Specialised Bolt Torque Measure Equipment

Specialised Equipment

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

Optimum Tooling Real Measurements Joint Analysis Higher Availability Improved Procedures

Joint Analysis

We look at the joint geometry, joint conditions, pressures & temperatures; then we determine how to improve performance and propose the optimum solution

Real Measurements

Torque and Tension are estimations that go horribly awry in the wrong conditions. We measure what's really happening and implement corrective actions

Optimum Tooling

26 years experience has provided a wealth of knowledge. In the vast majority we can suggest tooling that is safer, quicker and lighter

Improved Procedures

Many standard bolting procedures are outdated or inaccurate. Using our real measurement results we develop faster, more accurate and safer procedures

Higher Availability

The real 'jewel in the crown', everything we do delivers Higher Availability. Shorter shutdowns & less shutdowns. A very high Return on Investment

Reduced Shutdown Durations

Boltstress Ultrasonics

Preventing bolted joint failure
Specialised Bolting Solutions through
Boltstress Specialised G5 Ultrasonic Bolt Tension

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 ?

Boltstress G5 Ultrasonic Bolt Tension Measurement Tool

Ultrasonic bolt tension measurement

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

Measuring with Boltstress G5 Ultrasonic Bolt Tension Tool

Bolted Joint performance condition monitoring

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

Boltstress G6 Ultrasonic Bolt Tension Tool

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 new product could surpass it...

G5 Ultrasonic Bolt Tension Tool on the job

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 ...

Bolt Torque Professional on the job

Practical experience based consultancy

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

Recent Articles

Boltstress Ultrasonics Prevents Future Failures

Time is money in any industry.

When your machinery fails to undergo periodic tests and checks, unexpected downtimes are inevitable.

Such is the case with liner bolts that have accumulated a number of failures in the past.

The question is, how does it happen, why does it occur, and what can be done to prevent it from causing problems in the future?

Boltstress Ultrasonics got to the bottom of this situation and conducted a thorough ultrasonic bolting measurement and analysis of the Mills in question. This task led to numerous revelations, which is presented in this post.

Liner Bolt Experts Celebrate 10 Years of Liner Bolting Solutions

For the last ten years, our liner bolt specialists have worked with clients in need of diagnostics and solutions for problems with their mill liner bolts. One particular mine experienced an alarming one-a-week liner lifter bolt failure.

Fast forward to today, Boltstress prides itself as being a dependable company with a highly competent maintenance crew that carries out ANY bolt-related works.

In any business, time is money. This is why downtime caused by equipment failure and breakdown can result in hundreds and thousands of profit loss. Mining companies, for instance, rely on heavy machinery and equipment to keep their operations going. But what if machinery breaks down? How much is lost and what can be done to prevent this issue?