Chips, fines & air · review
Half the amps and one inch less impeller than its sibling, for less than half the air — and it will hang on a wall.
The end of it The small WEN: six hundred CFM, a published weight, and a wall bracket — through the same five-micron bag.
Every figure below names its source. Each one is a manufacturer specification read off the listing itself. The judgments are ours.
Three published figures, and they are only interesting next to the maker’s other machine on this shelf.
That one publishes 14 A, a 10 inch impeller at 3,450 rpm, and 1,300 CFM.
So one inch of impeller is about a fifth more swept area, the power roughly doubles, and the airflow more than doubles. That is the normal shape of a centrifugal fan, and these two pages are the only place on either half of this shelf where it can be seen — because they are the only two that publish an impeller at all.
What this page does not publish is the impeller’s material or its speed, which the larger one does.
Eighteen and a half kilograms, published, with an optional wall mount and keyhole-free swivel casters.
That is the figure that makes the bracket possible. A collector on the floor gets moved between machines; one on a wall is permanent, which means ducting instead of dragging.
The published Rockler on this shelf is wall-mount only. This is mobile with the option, which is the more flexible of the two.
Chips on the floor are a nuisance. The dust that matters is the part that never lands.
Wood dust is classified as a Group 1 carcinogen by the IARC, and the particles that reach the deep lung are below about ten microns — which is to say, invisible in a shaft of sunlight through a workshop window.
So the number that decides what a collector is worth is not its airflow. It is what its filter stops. A machine that moves a great deal of air through a coarse bag is a machine that measures the room’s dust and puts it back.
The same bag rating as the maker’s larger machine, and the same gap.
No dust class, where every European machine on this shelf is judged on the letter. Five microns passes everything below five, and the harmful fraction is below about ten.
Three published pages on this shelf name a missing filtration rating as their chief fault. This page gives a rating, in the other unit, and leaves out the letter.
Fifty-seven liters, which behind a planer is an afternoon.
The maker’s larger machine holds fifty gallons. The published Scheppach HD12 here holds seventy-five liters and its page makes the point: it is not emptied every afternoon.
This one is.
Read on the day this page was built: $229 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-07. The live price is at the top of the page.
| Airflow | 600 CFM, published — about 1,020 m (3346 ft)³/h |
|---|---|
| Motor | 7.4 A induction, published · No wattage and no horsepower are claimed |
| Impeller | 9 in, published · No material and no speed are given, where the maker's larger machine publishes both |
| Filtration rating | 5 micron, on a zippered collection bag · No dust class is published |
| Inlets | One 4 in dust port |
| Capacity | A 15 gallon bag — about 57 liters |
| Mobility | Swivel casters, an onboard carrying handle, and an optional wall mount |
| Overall size | 43.3 × 17.7 × 20.1 in, published — 1,100 × 450 × 511 mm (43.3 × 17.7 × 20.1 in) |
| Weight | 41.1 lb, published — 18.6 kg (41 lb) |
| Also stated | A two-year warranty |
| Part number | DC3474 |
| Amazon reference | B09T4XLXFY |
| EAN | 0044459034742 |
Because airflow in a centrifugal fan goes with the impeller as well as the power. The maker's DC1300 on this shelf publishes a 10 inch impeller at 3,450 rpm and 1,300 CFM; this publishes a 9 inch impeller and 600 CFM. One inch of diameter is about a fifth more swept area, and the power roughly doubles — and the airflow more than doubles. That is the normal shape of the relationship, and the two listings together are the only place on this shelf where it can be seen at all, because they are the only two that publish an impeller.
For one 4 inch port, yes. A table saw cabinet wants roughly 350 to 400 CFM at the port to keep dust moving in the duct, and a band saw or a router table rather less. What 600 does not do is run two machines at once, or tolerate much loss — every meter of flexible hose, every bend and every half-blocked bag takes a share. The published Scheppach HD12 on this shelf is 1,150 m (3773 ft)³/h, about 680 CFM, for a single 100 mm (3.94 in) port, and its page calls that the right shape of machine for the big ports.
Floor space, and the hose run. A collector on the floor sits where a workshop is short of room and gets moved between machines; one on a wall is permanent, which means ducting rather than dragging. The published Rockler on this shelf is wall-mount only and uses keyhole slots; this one is mobile with an optional mount, which is the more flexible arrangement. The forty-one pound weight is what makes either possible — the maker's larger machine publishes no weight at all.
Between woodworking machines of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
| Model | Price | Airflow | Motor | Capacity |
|---|---|---|---|---|
| WEN DC3474, 600 CFM collector | $230 | 600 CFM, published — about 1,020 m (3346 ft)³/h | 7.4 A induction, published · No wattage and no horsepower are claimed | A 15 gallon bag — about 57 liters |
| Scheppach HD2P | $235 | 120 m (394 ft)³/h | 1,250 W | 5 L |
| Bucktool DC50, 750 CFM collector | $270 | 750 CFM, published — about 1,275 m (4183 ft)³/h, and stated CSA listed | 1.2 HP at 120 V, 3,450 rpm, with a full load of 6.5 A published · 6.5 A at 120 V is about 780 W of input; 1.2 HP is about 895 W of output | 13 gallons — about 49 liters · A plastic lower bag and a cloth lower bag are both supplied |
| ECOMAX EM18412PE, 8 gal HEPA extractor | $130 | Not published by the maker. | 6.5 HP claimed — about 4.8 kW · A 120 V 15 A circuit supplies about 1,800 W, so the figure is a peak rating and not a continuous output · No amperage and no wattage are published | 8 gallons — about 30 liters, in a polymer tank with a drain port |
A one-machine shop with no floor to spare, where the collector hangs on the wall
Amazon reports what buyers took in the month before this page was last checked: at least 100.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for woodworking machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
1,200 W · dust class L · semi-automatic filter clean
The professional L-class vacuum with semi-automatic filter cleaning — the feature that stops suction fading halfway through a job.
Best for: Site and workshop extraction where suction has to stay constant all day
750 CFM · 2 micron upper bag · auto-start outlet rated 7 A · CSA listed
The finest bag on the American half of this shelf at two microns — and the only auto-start outlet here that publishes its limit.
Best for: A sander, a router table or a band saw on auto-start, where the fine bag matters more than the volume
≈ $270
HEPA · semi-automatic filter cleaning · tool-activated · anti-static hose · 6.5 HP claimed
HEPA filtration and semi-automatic filter cleaning on a shop vacuum — and six and a half horsepower claimed from a domestic socket.
Best for: A sander, a track saw or a router connected by hose, where the fine fraction is the whole point
≈ $130
