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Selection Guide

Types of Wood Dust Collectors

Three types of wood dust collectors, separated by how the filter media takes dust out of the air stream. Bag, sleeve and cartridge each suit a different particle and a different duty cycle. Get that right and hoods, ducting and fan selection all follow from it.

3Filtration technologies
9Collector models in range
2Siting options, in or out
1958Filtration engineering since
Before you compare models

Start with the dust. Not the catalog.

A dust collector is filter media with a fan attached. The only question that really matters is whether the media can hold the particle you produce, at the rate you produce it, without blinding.

Three things settle that in almost every wood plant: what the dust is made of, how much arrives when the shop is busiest, and where the unit can physically stand. Answer those and nine models narrow to two.

01

Particle and moisture

Coarse planer shavings drop out of a slowing air stream on their own. Respirable MDF dust does not, and green sawmill waste carries moisture that changes how any media behaves.

02

Volume and duty cycle

Peak simultaneous demand sets the size, not the machine count. Whether the plant runs continuously decides if you need automatic filter cleaning or can clean between shifts.

03

Space, height and siting

Floor area is the obvious constraint. Ceiling height is the one that catches people out, because it decides whether filters can be lifted clear of the unit at all.

Filtration technology

Bag, sleeve and cartridge.

Three ways of separating dust from air. That one difference drives filter life, cleaning method, footprint and how often somebody has to touch the unit.

Coral bag dust collector with two vertical filter bags mounted above clear collection bags on a wheeled frame

Bag Collectors

Air enters a chamber and slows. Heavy chip drops into the collection bag while the fine fraction builds a cake on the inside of a fabric bag. Cleaning shakes that cake into the hopper.

Media
Woven fabric bags
Cleaning
Shaker, manual or automatic
Best on
Fine dust mixed with coarse chip
Watch
Headroom above the unit for bag changes
Icon Bag dust collector →
Coral sleeve dust collector cabinet with vertical filter sleeves above a row of collection bags

Sleeve Collectors

Sleeves are long fabric tubes hung vertically. Packing media upward rather than outward is the point: more filtration area stands in a narrower machine. Pulse models clear them while running.

Media
Vertical fabric sleeves
Cleaning
Manual, or automatic reverse pulse
Best on
Steady wood dust and chip at volume
Watch
Pulse models need compressed air
FM READY sleeve collector →
Cylindrical Coral cartridge dust collector with a conical discharge hopper and ducted inlet

Cartridge Collectors

A cartridge is pleated media on a frame, folding far more surface area into the same volume than a bag can. That area is what lets it hold respirable dust without choking.

Media
Pleated cartridges, very high area
Cleaning
Automatic jet pulse, no stopping
Best on
Fine, dry, respirable dust
Watch
Damp or resinous dust blinds pleats
Aircompact cartridge collector →
The part nobody asks about

Filter life, cleaning and downtime.

Two collectors can move the same air and still cost very different amounts of production time.

Media does not fail, it fills

Dust builds on the upstream face, resistance rises and airflow at the machine drops. The operator sees chip sitting in the hood long before anyone looks at the collector. Fine dust builds a tighter, less permeable layer than chip, so an undersized cartridge on fine dust needs attention far sooner than a bag unit on a moulder.

Cleaning method decides who touches the unit

Shaker cleaning is simple and reliable, and on most units it happens with the fan off, so somebody has to schedule it. Automatic reverse pulse fires compressed air back through the media while the collector runs, so nobody schedules anything. That matters most on two shifts, where there is no comfortable window to stop extraction.

Disposal belongs in the specification

Whatever the media, the dust has to leave the building. Small units drop into collection bags somebody changes by hand. Larger ones discharge to bulk bags, bins or a rotary valve. On a high volume site the discharge method, not the filter, usually decides how big the unit has to be.

Siting

Inside the building or outside it.

Not a preference. A trade between heat, noise, fire separation and floor space, decided by the plant rather than the collector.

01

Sited indoors

Filtered air stays in the building, so heat you have already paid for is not thrown out through the roof. In a heated plant that is the strongest argument for keeping the unit inside. The costs are floor space, fan noise near operators, and a combustible dust load stored inside the production envelope. Seven models are configured for indoor duty: see the indoor dust collector range.

02

Sited outdoors

Moving outside gives the floor back, takes fan noise off the shop and puts the most explosible material in the plant beyond a wall. In exchange you exhaust conditioned air unless return ducting is designed in, and the unit lives in the weather. It earns its place on waste volumes an indoor unit cannot practically handle: see the outdoor dust collector range.

Side by side

All nine models, compared.

No two rows solve the same problem. Airflow and dimensions are sized to your plant and available on request.

Comparison of all nine Coral wood dust collector models by filtration technology, siting, mobility, dust profile and typical application
Model Technology Siting Mobility Dust it suits Typical application
Icon Bag Bag Indoor Fixed, configurable Fine dust with coarse chip Cabinet shops and edge banding lines
Clen Portable Bag Bag Indoor Portable, no fixed ductwork Dust and chip from one machine Small shops and single point capture
FM READY Sleeve Sleeve Indoor Fixed, modular and expandable General wood dust and chip Millwork shops planning to add capacity
Icon PRO Sleeve Sleeve Indoor Fixed, simple controls Saw, router, sander and planer dust Furniture lines and mid size shops
Airalt M Sleeve Sleeve Indoor Fixed, cylindrical, compact plan Fine dry dust, mixed duties Tight installations around existing structure
Aircompact Cartridge Cartridge Indoor Fixed, vertical for low headroom Dry fine dust, continuous duty CNC routers and nesting cells
Airalt Cartridge Cartridge Indoor Fixed, cyclonic pre separation Fine respirable bonded dust Beam saws and panel sizing centers
Aircom Sleeve Sleeve Outdoor Fixed central, automatic pulse Dust and chip under sustained load Moulder and planer lines running hard
MEC / D Sleeve Sleeve Outdoor Fixed central, integrated fan Heavy sawdust, chip and bark Sawmills and high volume central systems
Decision path

Narrow it down from here.

Know where the unit will stand, start with a range. Know which machine is the problem, start with the application.

Common questions

Choosing between collector types.

What our engineers answer most often before a plant commits to a technology.

What are the three types of wood dust collectors?

Bag, sleeve and cartridge. The names describe the filter media, not the machine. Bags catch dust on the inside face of fabric. Sleeves hang fabric tubes vertically so more media fits a narrower cabinet. Cartridges use pleated media, which packs far more area into the same volume.

Is a cartridge collector better than a bag collector for wood dust?

Not automatically. Cartridge media handles fine dry dust such as MDF far better than fabric bags. On coarse planer waste, or on damp dust, pleats blind faster than a bag. Match the media to the particle, not to the price list.

When does a wood dust collector need to go outside?

When waste volume is high enough that an indoor unit would need emptying too often to be practical, when floor space is worth more than the heat lost by exhausting outside, or when you want the combustible dust load beyond a building wall.

Can one dust collector serve several woodworking machines?

Yes, and most industrial installations do. The sizing question is not how many machines you own but how many extraction points open at once. A shared main also needs blast gates, or airflow is spread across idle machines.

How do I know what size dust collector I need?

Airflow demand comes from hood sizes, simultaneous pickups and the length and diameter of the duct run. None of that can be read off a product page. We measure it on site during a free factory visit.

Still deciding between two?

Send the machine list and we will tell you which technology fits and which one would cost you money.