Use and Care Manual

• Wrap the outside of all plastic ducts with bare copper
wire to ground the outside of the system against static
electrical build up. Make sure all wires are connected to
each other with wire nuts when two branches meet at a
“Y” or “T” connection (Figure 19).
Copper
Wire
Ground
Screw
Ground
Screw
Plastic
Gate
Metal Duct
Figure 19
• When plastic blast gates are used the grounding
wire must be jumped around the blast gate without
interruption to the grounding system.
• Ensure that each machine is properly grounded. Refer
to the machine owner's manual for correct procedure.
DUST COLLECTION SYSTEM LAYOUT
Use the following information as a guide to layout a dust
collection system for a small to medium shop. More
research or the help from an expert will be needed to
layout a dust collection system for a large shop.
NOTE: To complete and fine tune the design of your
system several books and web based information is
available. Simply search for Dust collection system
design or Dust Collection Basics.
1. Sketch the layout of the shop floor. Include each
machine and the dust collector.
2. Sketch the layout of the main line ducts and the
branch line ducts to connect each machine to the dust
collection system.
• Place the machines that produce the most saw
dust nearest to the dust collector
• The main line and secondary branch ducts should
be designed to be as short as possible.
• Keep direction changes to a minimum. Directional
change fittings increase the overall resistance
to flow.
• Used the largest corner radius possible when
changing hose or pipe direction, a gradual
directional change is more efficient.
• Each individual branch line should have a
blast gate.
3. Determine the required CFM to determine the size of
duct work needed.
• Each machine produces a different amount of
sawdust. The minimum amount of CFM needed to
move the sawdust is different for each machine.
• The Table 1 shows the approximate required
CFM per machine based on the dust port size.
NOTE: Place machines that generate the most
sawdust close to the dust collector (planers,
sanders).
NOTE: If a machine has multiple dust ports the
CFM required is the sum of all ports.
TABLE 1
MACHINE DUST
PORT SIZE
APPROXIMATE
REQUIRED CFM
2" 98
2.5" 150
3" 220
4" 395
5" 614
6" 884
7" 1203
8" 1570
9" 1990
10" 2456
• See Table 2 to help determine what size dust
port is needed on machines without a built-in
dust port.
TABLE 2
MACHINE DUST PORT
SIZE
Bandsaw 4"
Belt Sander (6" and smaller) 2"
Belt Sander (7"-9") 3"
Disc Sander (12" and smaller) 2"
Disc Sander (13-18") 4"
Drum Sander (24" and larger) 4 x 4"
Drum Sander (24" and smaller) 2 x 4"
Edge Sander (6" x 80" and larger) 5"
Edge Sander (6" x 80" and smaller) 4"
Jointer (6" and smaller) 4"
Jointer (8"-12") 5"
Lathe 4"
Miter/Radial-Arm Saw 2"
Router (mounted to table) 2"
Shaper 4"
Table Saw 4"
Thickness Planer (13" and smaller) 4"
Thickness Planer (14"-20") 6"
Widebelt Sander (18" and smaller) 5"
Widebelt Sander (24"-37" single head) 2 x 6"
Widebelt Sander (24"-51" double head) 5 x 4"
• Add the required CFM to your sketch for
each machine.
4. Determine the main line duct size.
• The velocity of the airflow must not fall below
3500 CFM.
• Using the inlet size of the dust collector as the
main line duct size will usually keep the air
velocity above 3500 CFM.
OPERATION
9