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SECTION 4: DESIGNING A SYSTEM
General
Always make sure there are no open flames
or pilot lights in the same room as the dust
collector. There is a risk of explosion if too
much fine dust is dispersed into the air with
an open flame present.
Always guard against stat-
ic electrical build up by
grounding all dust collec-
tion lines.
The Model G0850 works great as a central sys-
tem for a small shop or a dedicated dust collector
for large production machines. The dust collec-
tor is capable of collecting dust from up to four
machines running simultaneously. Grizzly offers
a complete dust collection system guide book
(Model W1050) entitled Dust Collection Basics.
Tips for Optimum Performance
•
Avoid using more than 10' of flexible hose on
any ducting line. The ridges inside flexible
hose greatly increase static pressure loss,
which reduces suction performance.
•
Keep ducts between the dust collector and
machines as short as possible.
•
Keep ducting directional changes to a mini-
mum. The more curved fittings you use, the
greater the loss of suction at the dust-produc-
ing machine.
•
Gradual directional changes are more effi-
cient than sudden directional changes (i.e.
use 45° elbows in place of 90° elbows when-
ever possible).
•
The simpler the system, the more efficient
and less costly it will be.
Model G0850 (Mfd. Since 01/19)
Duct Material
You have many choices regarding main line and
branch line duct material. For best results, use
smooth metal duct for the main line and branch
lines, then use short lengths of flexible hose to
connect each machine to the branch lines.
Plastic duct is also a popular material for home
shops. However, be aware that there is a fire or
explosion hazard if plastic duct material is not
properly grounded to prevent static electrical
buildup (refer to System Grounding at the end of
this section). Another problem with using plastic
duct is that it is less efficient per foot than metal.
Plastic duct generates static
electrical buildup that can
cause fire or shock. Properly
ground it to reduce this risk.
Plastic Duct
The popularity of plastic duct is due to the fact
that it is an economical and readily available
product. It is also simple to assemble and easily
sealed against air loss. The primary disadvantage
of plastic duct for dust collection is the inherent
danger of static electrical buildup.
Figure 52. Examples of plastic ducting
components.
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