On-site Services

Our tools do their work at the coalface; so do we. Our team complete comprehensive on-site testing to eliminate bolt failure and leaks before they lead to extremely costly downtime, as well as provide accredited training, project management and technical consulting for improved efficiency and better safety.

On-site project completion

We bring the latest technology, the right people and best tooling in the business to your site to complete a huge range of projects, keeping your site safe and your profits flowing. Our system is primarily one of prevention and our end goal is to eliminate critical bolted joint failure, leaks, costly downtime, potential safety hazards and guesswork. Our areas of expertise include:

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Ultrasonic Bolt Tension Monitoring

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Hydraulic Torque Tightening

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Hydraulic Coupling Bolt Systems

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Heat Exchangers and Pressure Vessels

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Valves and Turbines

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Hydraulic Bolt Tensioning

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Hydraulic Nuts

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Structural joints on Ball, Rod and SAG Mills

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Slew Ring Bearings

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Liner Bolting on Ball, Rod and SAG Mills

On-Site Services Case Studies

Stacker Reclaimer Slew Ring Bearing Bolts – Using ultrasonic measurement technology to improve tensioning accuracy

Stacker Reclaimer Slew Ring Bearing Bolts – Using ultrasonic measurement technology to improve tensioning accuracy

Most sites will rely on torque tightening or hydraulic bolt tensioning (stretching) to control the bolt load of slew ring bearing bolts.
Elimination of Exciter Motor Bolting Failure

Elimination of Exciter Motor Bolting Failure

Exciter motor hold down bolts fail for several reasons, but our extensive experience demonstrates that these can be eliminated if the pre-load is correct.
Grinding Mills Structural Critical Fasteners

Grinding Mills Structural Critical Fasteners

Grinding Mills Structural Critical Fasteners. Using Ultrasonic Measurement technology to improve tightening accuracy and bolt life.
Reclaimer Slewing Ring Bearing Bolts

Reclaimer Slewing Ring Bearing Bolts

Using ultrasonic measurement technology to improve tensioning accuracy and bolt life.
Railcar Dumper Refurbishment

Railcar Dumper Refurbishment

Norbar Technical Services - contracting experienced crews to mitigate time budget blow-outs.
Mill Liner Bolting Services – NTS

Mill Liner Bolting Services – NTS

Elimination of Mill Liner bolt failures.

Technical consulting

With bolt failure causing costly unscheduled maintenance that can quickly run into the hundreds of thousands, it makes sense to spend time up-front ensuring your bolting has been done to the highest standards, by the most qualified team. We can work with you on a number of bolting solutions to increase reliability and ultimately improve uptime.

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Project Management

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Supervision of Critical Bolting Application

  • Critical Review of Bolting Issues
  • Fastener Tensioning Procedures
  • Fastener Failure Analysis
  • Assembly Techniques
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Design and Planning of Bolted Solutions

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Manufacturing, Planning and Quality Control

  • Bolting Process Improvement
  • Verification of Bolting Practices

Training

We have developed a range of training packages that upskill your team in bolting failure prevention and correct maintenance. We can also fully tailor a package to address any needs or deficiencies within your team, delivered on-site by our experienced technicians. Some of these packages include:

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On-site Training/In-house Training

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Occupational Health and Safety Operation Package

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Tool Operation and Maintenance Training

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Tailored Packages

Efficient & reliable tensioning equipment

Our range of precision engineered hydraulic bolt tensioners and tensioning equipment are guaranteed to assist in reducing maintenance and shutdown times.

Lightweight, ultra-accurate and reliable, we offer bolt tensioners, hydraulic nuts and bolts, CamNuts and accessories that can be quickly and easily fitted using standard pumping equipment such as Hand Operated, Electric Hydraulic and Air Hydraulic Pumps.

Each item brings a cost effective and efficient solution in a compact system which is simple, safe and easy to use.

Norbar Tensioning Equipment

Testimonial

Marvin Muller – Processing Manager
Northern Star Resources Limited

“Trevor has a wealth of bolting experience, knowledge and solutions. His team are well trained, safe, efficient and flexible. ”

“Working with Norbar 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.

For our primary mill, the entire process – from establishing permits to setting up tooling and signing off on the Job Hazard Analysis (JHA) – was completed seamlessly within just 3 hours. What impressed us the most was the swift turnaround time for re-monitoring and adjusting bolts in each position, taking our crew only 60 to 90 minutes per position. With no need for scaffolding and a meticulous approach, we achieved the desired results effectively.

Similarly, for our secondary mill, the efficiency and precision exhibited by Norbar were exemplary. The re-monitoring and adjustment of bolts in each position took a similar timeframe, ensuring thoroughness without sacrificing productivity. The fact that no scaffold was required further streamlined the process, making it hassle-free and efficient.

Overall, we couldn’t be more pleased with the results delivered by Norbar. Their expertise and dedication have significantly contributed to the smooth operation of our mills, and we look forward to continuing our partnership for years to come.”

Testimonial

Derek Phillips-Jones – Newmont
Shutdown Planner Tanami Operations

Testimonial

Dale Wolfenden –
Linkforce Project Manager

“Our team had positive things to say about working with Norbar & Boltstress. Despite a few curve balls and date changes, we successfully completed the project. The onboarding process was smooth and efficient, thanks to Norbar and Boltstress’ proactive team. It was truly a pleasure working with you all.”

Looking for a safer and more efficient site?

Call our team today. +61 (08) 8292 9777