HSE Advice for Reducing Vibration on Pneumatic Hammers
Vibration is worst on the traditional in-line stone hammers without anti-vibration features - typically around 20m/s2 on the tool body and may be even worse on the chisel. It is usually lower on D-type handles and lowest on pistol grip hammers. This level of vibration exposes stonemasons to high risks of hand-arm vibration syndrome (HAVS) after a very short period of use.
Air pressure supplied to stone hammers has an effect on the vibration generated. Lower air pressure generally results in lower vibration on the tool body, but the tools may also be lower powered. Always refer to manufacturers’ instructions for the correct operating pressure. Make sure that you do not use the tool at a higher operating pressure than is necessary for the job.
Not all the stone hammers generate the same risks from vibration as the traditional ones. Vibration reduced stone hammers are available and may be suitable. The vibration from these tools are generally lower than the traditional in-line stone hammers. Consider replacing the high vibration traditional hammer with the vibration reduced ones. However, additional training maybe required on techniques of using these tools due to different designs.
Vibration reduced chisel sleeves are also available. Vibration generated on these types of chisel depends very much on the hammer the sleeve is used with. Used with smaller and lower powered hammers like the pistol grip ones can result in not only the lower levels on chisel sleeves, but also on the tool body itself.
UK HSE - contains public sector information licensed under the Open Government Licence v3.0.