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Nord-Lock

NORD-LOCK WASHER

NORD-LOCKWEDGE-LOCKINGSOLUTIONS

Nord-Lock original washers are recognized around the world for their ability tosecure bolted joints exposed to severe vibration and dynamic loads.

Developed in Sweden, in 1982, Nord-Lock washers prevent bolted connections from loosening — even under the most severe vibration and dynamic loads. With their unique wedge-locking technology and high-quality steel, the washersincrease operational reliability and lower your maintenance costs, while significantlyreducing the risks ofunplanned production stops, accidents, and warranty claims.

Advantages

Nord-Lock original washers secure bolted jointsexposed to severe vibration and dynamic loads
Available in a wide range of materials to suit use ingeneral steel and stainless-steel applications, and incorrosive, acidic and high-temperature environments
Locking function not affected by lubrication
Achieves accurate preload with defined and uniformfriction
Available in a wide range of sizes (metric andimperial)
Designed for bolts up to and including property class12.9 (steel) and A4-80 (stainless steel)
High corrosion resistance (minimum 1,000 hours insalt spray test according to ISO 9227) for steel washers
Reusable (depending on conditions of use)
Custom sizes upon request

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SUPERBOLT

SUPERBOLT MULTI-JACKBOLT TENSIONER

Superbolt was the world’s first to revolutionize nuts and bolts withthe multi-jackbolt tensioner (MJT) in 1984. Since then, Superbolthas proven its technology in tens of thousands of successfulinstallations.

Superbolt tensioners are designed as direct replacementsfor conventional nuts and bolts.

These devices can bethreaded onto a new or existing bolt, stud, threaded rod orshaft. The main thread serves to position the tensioner onthebolt or stud against thehardened washer and the loadbearingsurface. Once it is positioned, actual tensioning ofthe bolt or stud is accomplished with simple hand toolsby torqueing the jackbolts which encircle the main thread.

The jackbolts transfer the preload evenly into the mainthread and, consequently, onto the joint. The main threadis tightened in pure tension.

Advantages

Tremendous clamping force available
Low torque requirement – only hand tools needed
Safe method for installation personnel
Quick installation and removal
Tightens stud/bolts using pure tension
Tensioner flexibility adds elasticity to studs/bolts to create a better bolted joint
Fits in restricted areas
Provides even tension from stud to stud
Accurate within 10% of specified bolt tension

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BOLTIGHT

BOLTIGHT HYDRAULICBOLT TENSIONING

Boltight solutions have been at the forefrontof the hydraulic tensioning businessfor many years. The tools feature advancedtechnology and are designed for criticalapplications within various industries.

Boltight solutions make it possible to tighten and loosen multiple bolts simultaneously using high-pressure hydraulics.

Bolt tensioners stretch the bolt before the nut is wound down under zero friction, ensuring extreme accuracy, speed, uniformity and safety of any bolt tightening situation.

Advantages

Tension is applied directly to stretch the bolt, meaning that no friction needs to be overcome
Applied load is very accurately controlled, as it is directly proportional to the pressure applied to the hydraulic bolt tensioner
Loss of load between applied and retained load after tensioning is 20% less than frictional loss associated with torqueing
Accurate residual load outcomes due to calculable load loss
Tensioning can be repeated

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EXPANDER SYSTEM

Lug wear is a common problem with all machinery. Repairs involve a costly, time-consuming process with significant downtime and must be repeated several times over a machine’s life.

With the Expander System, the repair can be carried out directly in the worn mountings without welding and line boring – a permanent solution to lug wear.

The expansion sleeves expand to conform to the wear patterns and lock the system into place. There is no need for time consuming and expensive welding practices. Expander is a long-termsolution and most repairs are done in the field to minimize your downtime

ADVANTAGES