By brand
By category

Nord-Lock®Superbolt®Boltight®Expander®

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.

ConstructionForestry and agricultureMachine buildingManufacturing and processingMining and mineralsOil and gasPower generationRailwayShipbuilding and marineSteel, forging and other pressesTransportationOther industries

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.

Nord-Lock® webshopExpander® webshop

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
  • Blade applications
  • Tower applications
  • Nacelle / Gearbox applications
  • Subsea Applications
  • Transportation / Installation applications

The installation and maintenance of wind turbine blades involve significant costs, including equipment, labor, and downtime for the turbine. Conducting repairs or replacing damaged blades can be time-consuming and result in decreased energy production until the turbine is fully operational again.​

Nord-Lock Group solutions can assist in the installation and maintenance of rotor blades, leading to decreased maintenance time.​

Re-tightening and maintaining bolts in difficult and dangerous environments

Wind turbines are typically located in remote or offshore areas with challenging weather conditions. Harsh climates, including extreme temperatures, high winds, heavy rain, and icing, can make installation and maintenance tasks more difficult and time-consuming.​

Nord-Lock® washers are utilized in the bolted connections between rotor blades and the hub. These washers maintain the clamping force on the bolts, minimizing the risk of loosening due to wind-induced vibrations and cyclic loads, thereby ensuring the secure attachment of the rotor blades.​

Nord-Lock washers between rotor blades and the hub

Common issues:

Tightening bolts in confined spaces

Bolt tensioning is employed during the installation of rotor blades onto the hub. Proper tensioning of the bolts ensures a secure connection between the blade root and the hub, preventing blade movement or detaching during operation.

Boltight® hydraulic tensioners and Superbolt multi-jackbolt tensioners are designed to tighten bolts in hard-to-reach areas, such as rotor blades.​

Micro-movements lead to shift couplings/drive shift misalignment

Micro-movements, if not properly addressed, can have several negative effects. They can increase fatigue loads on the blade, leading to accelerated wear and potential structural damage over time. Micro-movements can also generate additional noise and affect the overall performance and efficiency of the wind turbine.​

Superbolt® split-sleeve solution expansion bolts perfectly replace traditional fitted bolts, avoiding micro-movements entirely.​

Service and Repair​

If excessive micro-movements or associated issues are identified, maintenance and repair actions may be required. This can involve adjusting the balance of the blades, reinforcing weak areas, or conducting repairs to address structural damage. Downtime for maintenance can result in costly outages.​

The expanding sleeves of Expander® System provides a perfect fit into the borehole, preventing movement where the turbine blades attach to the rotor.​

Contact us to discover solutions for your bolting challenges

To read more on how we handle your contact details please see our Privacy Policy.

Thank you! We will be in contact with you shortly.

Nord-Lock wedge-locking washers prevent bolt loosening Nord-Lock Group Nord-Lock Wedge-Locking Products The Nord-Lock range includes original washers, X-series washers, steel construction washers, wheel nuts and custom solutions. Read more
Nord-Lock Group Superbolt Multi-Jackbolt Tensioner Products Superbolt multi-jackbolt tensioning solutions are direct replacement for conventional nuts and bolts. Large bolt tightening is safer and eliminates time consuming bolting methods. Read more
Superbolt Superbolt Load-Sensing Tensioner Tensioner with built-in preload monitoring system Read more
Superbolt Superbolt Load-Sensing Flexnut Use built-in sensors to automatically measure and communicate preload values for remote monitoring Read more
Nord-Lock Group Boltight Hydraulic Tensioning Tools and Products Boltight hydraulic tensioners and tools can tighten and loosen multiple bolts simultaneously. Ensures bolt load accuracy and safety in bolt tightening situation. Read more
Nord-Lock Group Expander System Pivot Pin Products Expander System provides advanced, cost-effective pivot pin solutions that prevent lug wear. We have the widest product range in the industry that has been installed in more than 10,000 machines. Read more

Policies

PrivacyLegal DisclaimerCookie PolicyDistributor Brand Guidelines

Follow us

Nord-Lock India Pvt Ltd

Unit No.206A, Wing B1, 2nd Floor, Boomerang
Chandivali Farm Road, Andheri East
Mumbai 400072
India

T: +91 22 4974 1712
E: info@nord-lock.in
Contact us

© 2025 Nord-Lock International AB

Welcome to the Nord-Lock Group

Secure bolting solutions for your bolting challenges

Select your country

  • Latin America
  • Australia
  • Brazil
  • China - 中国
  • France
  • Germany
  • India
  • Italy
  • Japan - 日本
  • Korea - 대한민국
  • Switzerland (DE)
    • Schweiz
    • Suisse
    • Svizzera
  • Switzerland (FR)
  • Switzerland (IT)
  • Sweden
  • Spain
  • United Kingdom
  • United States
  • Global
  • Southeast Asia