Norbar Torque Tools Limited, Lower vibration

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Lower vibration
November 1st 2007

According to Norbar Torque Tools, purchasers of power tools often face a lack of reliable data on the actual vibration levels produced by tools in use.

The company commissioned research to compare the vibration effects on the user between a typical impact wrench and Norbar's Pneutorque torque tool in a typical truck garage environment.

A researcher for the Industrial Noise and Vibration Centre used an accelerometer attached to a typical impact wrench, as close as possible to the position of the operator's hands. Tests were carried out using an impact wrench and a Pneutorque tool to tighten 10 truck wheel nuts to 600N/m.

Averaged over the 10 bolts, the total vibration measured for the impact wrench was 18.8m/s2, whereas Norbar's Pneutorque registered just 1.4m/s2 during the same test. While a user of the impact wrench would reach their daily exposure action limit in 8min of wheel changing, the Pneutorque operator could perform the same task continuously for more than 24h without breaching the EAV limit.

More articles from Norbar Torque Tools Limited:

Measuring tension (1st July 2008)

In most applications, measurement of the torque applied to a bolt or threaded fastener during tightening provides sufficient feedback. In more specialised tasks, measurement of the fastener tension is essential to ensur

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Torque wrench range (1st May 2008)

A new gearbox design means new models in Norbar Torque Tools' range of Pneutorque pneumatic torque wrenches are now faster, lighter, smaller and easier to handle.

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Accuracy key to torque wrench (1st March 2008)

The key objectives for Norbar Torque Tools in designing its latest torque wrench were that it should be durable and stay in calibration for as long as possible, even when used regularly in tough workshop conditions.

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Gearing up for more production (1st January 2008)

Norbar Torque Tools has invested over £300,000 in a new Gleason-Pfauter CNC gear hobbing machine with robotic feeder in a bid to match demand for increased sales volumes of its Pneutorque pneumatic torque wrenches and

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Torque tool and tester (1st November 2007)

In motor racing accurate torque control of threaded fasteners is essential. The dangers of under- or over-tightening threaded fasteners are self-evident but, as well as the drivers having the confidence to push the car to the

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Vibration levels cut (1st September 2007)

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Shock report on torque (1st January 2007)

A recent survey carried out by Norbar Torque Tools has revealed a shocking lack of awareness of the importance of properly maintaining torque-controlled tools and wrenches - with a staggering 24% of respondents to the survey

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Double disc (1st July 2006)

Norbar Torque Tools has released a two-disc Flash multimedia presentation illustrating virtually every aspect of its activities.

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Three into TTT (1st May 2006)

The Torque Tool Tester Series 3 from Norbar Torque Tools has three transducer inputs which, the company believes, should allow most users to check all the torque wrenches they use - from the smallest to the largest - with suitable transducers simulta

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Torque multiplier (1st March 2006)

The accurate tightening of fasteners in restricted spaces presents a real challenge for manufacturers. Inaccessible fasteners can often only be reached using improvised tools that lack any kind of calibration or verifiable accuracy.

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Rallying support (1st January 2006)

Norbar Torque Tools' donation of more than £1000 worth of tools and equipment has helped the LEX Armed Forces rally team achieve its best ever performance in 10 years of competing in the gruelling Rally of Reykjavek.

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TORQUE WRENCH LOADER (1st September 2004)

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NEW CALIBRATION LAB (1st July 2004)

A new, enlarged and modernised UKAS accredited calibration laboratory has been opened by Norbar Torque Tools to cope with demand for its services.

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Five station tester (1st November 2003)

To increase the capacity and flexibility of its testing facilities Norbar Torque Tools has designed and built a five-station torque tool tester suitable for a range of applications. Each of the five spindles can be used independently or together to t

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For torque controlled tools (1st September 2003)

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From Production engineering