Good vibrations
October 1st 2009 Research commissioned by Norbar
Torque Tools compared the
vibration effects on the user
between a typical impact wrench
and its Pneutorque torque tool in a
typical truck garage environment.
To measure the vibration, the
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
hand. Tests were then carried out
using both an impact wrench and a
Pneutorque tool to tighten ten
truck wheel nuts to 600 N/m.
Averaged over the ten bolts, the
total vibration measured for the
impact wrench was 18.8 m/sĒ,
whereas Norbar's Pneutorque
registered 1.4 m/sĒ during the same
test. While a user of the impact
wrench would reach their daily
exposure action limit (EAV) in eight
minutes of wheel changing, the
Pneutorque operator could perform
the same task for over 24 hours
without breaching the EAV limit. More articles from Norbar Torque Tools Limited: | 
