We are the most experienced ultrasonic bolting company in the world

Based in Western Australia, Boltstress has specialised in ultrasonic bolting technology for more than 30 plus years, supporting mining and industrial operations in Australia and internationally. Meet the team behind our specialist onsite services.

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.

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 Bolt Torque Measure Equipment

Specialised Equipment

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

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Many standard bolting procedures are outdated or inaccurate.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

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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 ?

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

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 ...

Practical experience based consultancy

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

Recent Articles

Boltstress Ultrasonics Announcement

We are thrilled to announce that starting April 1st, 2024, Daniel Robinson and Grant Feddersen will be stepping into the roles of directors at Boltstress Ultrasonics. Both Daniel and Grant will be joining Trevor in overseeing our operations and ensuring top-notch services for our esteemed clients worldwide.

How Ultrasonic Testing of Liner Bolting in Grinding Mills Eliminate Retorque and Prevent Unplanned Shutdowns

Ultrasonic bolt tension testing is a highly accurate method of determining what bolt tension tightening methods are really achieving. Torque figures are at best an estimate and don’t provide any data. Ultrasonic Bolt Tension Testing also detects any defects in used or new bolts.

Grinding mills, for instance, are massive capital-cost equipment that require proper maintenance to ensure their performance and operation. However, once they halt performing for whatever reason, this leads to significant loss in revenue. The length of time required to get it back on operation can take several hours, days, or even weeks, depending on the severity of damage.

Ultrasonic Bolt Elongation as an Accurate Way to Determine Joint Integrity

Over time, bolts in many industrial applications loosen because of certain factors such as load and constant vibration. Some companies rely on torque wrenches and bolt tensioners to tighten these bolts and ensure their joint integrity. However, these do not always provide adequate accuracy, nor do they allow for on-going re-monitoring and targeted adjustments.

Services

Applications

Reduced Shutdown Durations

using lighter, faster, safer tooling with improved procedures

Heat exchanger flanged joint solutions

Why do gaskets leak so frequently?

Increase Plant availability

eliminate all bolting failures

Liner Bolt Failure elimination

before and after

We are the most experienced ultrasonic bolting company in the world

Based in Western Australia, Boltstress has specialised in ultrasonic bolting technology for more than 30 plus years, supporting mining and industrial operations in Australia and internationally. Meet the team behind our specialist onsite services.

Joint Analysis

Real Measurements

Optimum Tooling

Improved Procedures

Higher Availability

"They haven't had to do an emergency shut for replacements on the BM since Boltstress have been crack testing and replacing - this is awesome news!" - Carrapatena Mine, South Australia

"Working with Boltstress for our primary and secondary mill maintenance has been a game-changer for our operations. From the moment we engaged their services, the efficiency and professionalism were evident." - Derek Phillips-Jones, Shutdown planner, Tanami Operations

"Good feedback for the team who came to site, easy to deal with and all work completed safely" - Shutdown planner, Tanami Operations

"We get so much more than just ultrasonic skills from Trevor and his team" - Lihir Gold Engineer

"There is so much valuable information in the Boltstress reports, far in excess of any of the competitors" - Newcrest Production Superintendent

"Boltstress guys need no supervision, they just get the job done in a quick, professional, safe and accurate manner" - Newcrest Engineer

"You're the best thing we ever found" - IGO Meturlurgical Superintendent after we eliminated weekly breakdowns

"A great pick up" - Newcrest Engineer after we found cracked bolts preventing a future failure

"We're so glad we could place the business with you, your support is so much better than the opposition" - Technip Project Engineer

"Trevor has been fantastic and we really value his input and vast experience." - Lee Hillyer, MD, www.mmdsizers.com

"Thanks for sending Steve out today. He did a great job, was easy to work with and would have no hesitation recommending him or using your services again." - In-Situ Machining Manager, weservices.com.au

"Trevor has a wealth of bolting experience, knowledge and solutions. His team are well trained, safe, efficient and flexible." - Marvin Muller - Processing Manager, Northern Star Resources Limited

"It was a pleasure working with Boltstress / Norbar as well. I would like to thank all the team members involved with the Wind Fences Project - Good job!! I will surely keep Boltstress on the speed dial as soon as the next opportunity arises." - Nav Bhangu, Site Engineer, CPB Contractors

"We have been successful in stopping this flange from leaking which is an excellent result as I thought we may have had ongoing issues with it."- Justin Anthony, Maintenance Superintendent, King of the Hill

"Thanks for the prompt supply of the bolt stress report. Appreciate your time and effort to complete SL1E slew bearing hold down studs. Great job and look forward to working with you on future projects."- Andrew Carpenter, Rio Tinto

"During the shutdown, Daniel and Cassia did a fantastic job accommodating our requirements to check the bolts on the secondary crusher. Their flexibility and support were greatly appreciated â€” thank you both!"- Crusher Specialist, Boddington Gold Mine - Newmont

"I called to thank Boltstress guys for not only doing a great job on our workscope but also for helping other work crews with theirs." - Andy, Shutdown Supervisor at KCGM (Super Pit)

"Thanks for your efforts on this job [tensioning and crack testing], very much appreciated."- Matthew Lawson, Crushing Specialist, Newmont

Reduced Shutdown Durations

Boltstress Ultrasonics

Preventing bolted joint failure

Specialised Bolting Solutions through

Recent Articles

"They haven't had to do an emergency shut for replacements on the BM since Boltstress have been crack testing and replacing - this is awesome news!"
- Carrapatena Mine, South Australia

"Working with Boltstress for our primary and secondary mill maintenance has been a game-changer for our operations. From the moment we engaged their services, the efficiency and professionalism were evident."
- Derek Phillips-Jones, Shutdown planner, Tanami Operations

"Good feedback for the team who came to site, easy to deal with and all work completed safely"
- Shutdown planner, Tanami Operations

"We get so much more than just ultrasonic skills from Trevor and his team"
- Lihir Gold Engineer

"There is so much valuable information in the Boltstress reports, far in excess of any of the competitors"
- Newcrest Production Superintendent

"Boltstress guys need no supervision, they just get the job done in a quick, professional, safe and accurate manner"
- Newcrest Engineer

"You're the best thing we ever found"
- IGO Meturlurgical Superintendent after we eliminated weekly breakdowns

"A great pick up"
- Newcrest Engineer after we found cracked bolts preventing a future failure

"We're so glad we could place the business with you, your support is so much better than the opposition"
- Technip Project Engineer

"Trevor has been fantastic and we really value his input and vast experience."
- Lee Hillyer, MD, www.mmdsizers.com

"Thanks for sending Steve out today. He did a great job, was easy to work with and would have no hesitation recommending him or using your services again."
- In-Situ Machining Manager, weservices.com.au

"Trevor has a wealth of bolting experience, knowledge and solutions. His team are well trained, safe, efficient and flexible."
- Marvin Muller - Processing Manager, Northern Star Resources Limited

"It was a pleasure working with Boltstress / Norbar as well. I would like to thank all the team members involved with the Wind Fences Project - Good job!! I will surely keep Boltstress on the speed dial as soon as the next opportunity arises."
- Nav Bhangu, Site Engineer, CPB Contractors

"We have been successful in stopping this flange from leaking which is an excellent result as I thought we may have had ongoing issues with it."
- Justin Anthony, Maintenance Superintendent, King of the Hill

"Thanks for the prompt supply of the bolt stress report. Appreciate your time and effort to complete SL1E slew bearing hold down studs. Great job and look forward to working with you on future projects."
- Andrew Carpenter, Rio Tinto

"During the shutdown, Daniel and Cassia did a fantastic job accommodating our requirements to check the bolts on the secondary crusher. Their flexibility and support were greatly appreciated â€” thank you both!"
- Crusher Specialist, Boddington Gold Mine - Newmont

"I called to thank Boltstress guys for not only doing a great job on our workscope but also for helping other work crews with theirs."
- Andy, Shutdown Supervisor at KCGM (Super Pit)

"Thanks for your efforts on this job [tensioning and crack testing], very much appreciated."
- Matthew Lawson, Crushing Specialist, Newmont