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Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.

Learnings

Performance and support servicesDownload centerCAD files | Nord-LockCAD files | SuperboltDigital tools3.1 Certificate | Nord-Lock

Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.

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Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.

About Nord-Lock GroupCareersLifetime warrantySustainabilityTerms and conditionsPress room

Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.


Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.

Contact us

CRITICAL BOLTING SOLUTIONS FROM GLOBAL LEADERS IN HYDRAULIC AND MECHANICAL TENSIONING

From construction to maintenance, energy infrastructure projects must withstand the significant pressures placed upon them. As projects become more complex, so do the bolting challenges they present. Tensioning solutions from the Nord-Lock Group are proven to meet the various demands of the power generation market.

  • About Boltight
  • About Superbolt
Gas & steam turbine Bolt tensioning solutions to reduce combined cycle gas turbine maintenance costs and outage time
Hydro Proven solutions to prevent extended downtime, overrun costs, and increased personnel hazards
Wind Critical performance throughout high cycle usage, without the need for frequent maintenance and repair
Nuclear Safe and reliable solutions to meet the highly complex operations of nuclear energy plants

Our equipment is used within the power generation sector often in extreme and hazardous environments. Our proven solutions will safely and easily tension even the largest bolts – and we’ll solve any engineering challenge in unique circumstances.  

We work closely with major OEMs, utility companies, and service contractors to deliver cost effective bolt tensioning solutions for your applications.

We design and manufacture tooling for all sectors of the power generation industry. Whether it is construction of new plants and equipment or routine maintenance programs, our tooling is used extensively around the world.

We offer proven tensioning solutions for applications including:

  • Casing half-joint
  • Turbine Casings
  • Boiler feed pumps
  • Marriage joints
  • Heat exchangers
  • PRV
  • Manways
  • Handholes
  • Access points
  • Tops on/tops off work on turbine casings
  • Steam valves
  • Rotors
  • Impellers
  • Couplings

Safeguarding human lives

Our equipment is used all over the world, from the deepest subsea situations to power stations, bridges and wind turbines. No matter where you are or what you are working on, we will be there to help you ensure safer, more efficient operations.

Quality beyond comparison

Whatever the size, location, preload requirements, or application – our industry-leading tensioning technologies secure any bolted joint. With self-imposed quality standards above industry recommendations, which our tensioners get measured against in rigorous testing, you won’t find safer, more reliable tensioning.

Global distribution

Our products are strategically stocked across the globe to offer our customers a seamless and fast experience. Receive direct support to optimize your delivery to suit your production timelines. Expect unmatched lead time on off-the-shelf products and customized solutions, anywhere in the world.

Customer Success stories

Customer Cases

Boltight hydraulic tensioners utilized in nuclear small modular reactors

The Boltight engineering team addresses real-world operating conditions of SMRs, including bolt tolerance, with a pragmatic, innovative approach.

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Customer Cases

Overcoming trouble-ridden installation with Superbolt® in hydropower plants

The size and lack of accessibility in hydropower turbines constantly presents operators with significant installation and maintenance challenges. For one customer, it entailed difficulties when try...

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Customer Cases

EDF Hydropower and Superbolt Tool: Bolt Maintenance with Huge Potential

Maintaining a G5 Pelton wheel at EDF La Coche, one of Europe's largest hydroelectric production units.

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Customer Cases

Ensuring alignment on hydropower turbines

Coupling alignment is key for the smooth operation of hydropower turbines, however, many plants are forced to schedule frequent maintenance due to misalignment. When a hydropower plant in Vietnam w...

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Customer Cases

GE Wind turbine using Expansion bolt for blind hole

The Nord-Lock Expansion bolt for blind hole applications is used on the flange coupling of the gear box on this wind turbine. The solution integrates Superbolt technology and is used to transmit the enormous torque.

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Customer Cases

Fusion Power

Swiss Plasma Center's problems with vertical, horizontal and axial vibrations are solved with the installation of Superbolt expansion bolts.

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Nord-Lock International AB

Box 336
401 25 Gothenburg
Sweden

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© 2025 Nord-Lock International AB

Welcome to the Nord-Lock Group

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