W1808/W1809/W1810 Cyclone Dust Collectors
Step 4. Determine Required CFM of Each Machine
Since each machine produces a different amount of saw- dust, the requirements for the minimum amount of CFM to move that sawdust is unique to the machine (for exam- ple, a planer produces more sawdust than a table saw). Knowing this required CFM is important to gauging which size of duct to use.
Figure 47 will give you a close estimation of the airflow your machine requires. Keep in mind that machines that generate the most sawdust should be placed closest to the dust collector. If the machine has multiple dust ports, the total CFM required is the sum of all ports.
If your machine doesn't have a built in dust port, use Figure 46 to determine which size of dust port to install on your machine.
Machine | Approximate |
Dust Port Size | Required CFM |
|
|
2" | 98 |
|
|
2.5" | 150 |
|
|
3" | 220 |
|
|
4" | 395 |
|
|
5" | 614 |
|
|
6" | 884 |
|
|
7" | 1203 |
|
|
8" | 1570 |
|
|
9" | 1990 |
|
|
10" | 2456 |
|
|
Figure 47. Approximate required airflow for machines, based on dust port size.
OPERATIONS
Machine | Average Dust Port Size | |
Table Saw |
| 4" |
| 2" | |
Jointer (6" and smaller) |
| 4" |
Jointer |
| 5" |
Thickness Planer (13" and smaller) | 4" | |
Thickness Planer |
| 6" |
Shaper |
| 4" |
Router (mounted to table) |
| 2" |
Bandsaw |
| 4" |
Lathe |
| 4" |
Disc Sander (12" and smaller) |
| 2" |
Disc Sander |
| 4" |
Belt Sander (6" and smaller) |
| 2" |
Belt Sander |
| 3" |
Edge Sander (6" x 80" and smaller) | 4" | |
Edge Sander (6" x 80" and larger) | 5" | |
Drum Sander (24" and smaller) |
| 2 x 4" |
Drum Sander (24" and larger) |
| 4 x 4" |
Widebelt Sander (18" and smaller) | 5" | |
Widebelt Sander | 2 x 6" | |
Widebelt Sander (24"_51" double head) | 5 x 4" | |
Figure 46. Dust port size and quantity per average
machine.
Write the required CFM for each machine on your sketch, as shown in Figure 48.
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