Ergonomics - Atlas Copco

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lubrication. Made from a composite with low
friction additives, these vanes are used in
screwdrivers, nutrunners, drills and other
tools that are used intermittently. Perform-
ance data match those of tools with tradi-
tional vanes.
To date, no vane material has been found
that can replace conventional vanes in tools
running at high vane speeds for prolonged
periods, e.g., grinders. However, in the larg-
est grinder range, we now offer turbine grind-
ers. They require no lubrication and are thus
a major step forward in terms of ergonomics.
Type of tool High working pace Low working pace
Dust Oil Dust Oil
Lub free tool Lubricated tool Lub free tool Lubricated tool
Spot suction Air Direct Air Direct Spot suction Air Direct Air Direct
Yes No piped outlet piped outlet Yes No piped outlet piped outlet
away away away away
Rough grinder 8 20 1 1 6 10 4 10 1 1 3 5
Die grinder 4 10 1 1 3 6 2 6 1 1 2 4
Sander 6 20 1 1 4 8 3 10 1 1 2 4
Chipping
hammer 4 8 1 1 2 4 2 4 1 1 1 2
Riveting hammer 1 1 2 4 1 1 1 2
All drills 2 8 1 1 3 6 1 4 1 1 2 4
Impact/impulse
nutrunner 1 1 3 6 1 1 2 4
Nutrunners 1 1 3 6 1 1 2 4
Screwdrivers 1 1 3 6 1 1 2 4
Table 3.15 Score for airborne dust and oil can be found in this table.
Evaluating dust and oil
From a power tool manufacturer’s point of
view, it is very difficult to evaluate dust and
oil. However, one thing is clear – if the ma-
chine does not need oil the weighting factor
for comparison with other stressors is zero.
To evaluate dust and oil in an aerosol
form we need to know more about the work-
station, its ventilation, the process, and
much more. This is unique information. In
order to compare stressors we can establish
rules of thumb based on our experience of
how our machines are used.