How an extractor differs from a vacuum
A household or commercial vacuum is built to clean surfaces occasionally. A dust extractor is built to run for hours beside a machine that produces dust all the time, such as a table saw, a sander, a CNC router, a grinder or a packaging line. Three design differences follow. The motor is larger and rated for continuous duty, typically 1.5-7.5 kW across the category and either single-phase or three-phase. The filter area is much bigger so that it can carry a high dust load without clogging quickly. And the machine usually has a way to clean the filter while running, by a pulse of compressed air, a reverse shake or a manual flap. Collection is in a large drum, a bag or a continuous bagging system, so that the operator is not stopping every few minutes to empty it.
The main parts
| Part | Role | Typical options |
|---|---|---|
| Motor head | Provides suction and airflow for hours | 1.5-7.5 kW, single- or three-phase, side-channel or multi-stage fan |
| Filter bank | Catches fine dust | Pleated cartridges, polyester or nanofibre media, optional HEPA-class final filter |
| Filter cleaning | Restores airflow while running | Manual shake, reverse pulse, compressed-air jet |
| Collection drum or bag | Holds the dust | Steel drum, long-life bag, continuous bagging |
| Hose and pipework | Connects to the source | Large-diameter hose, blast gates, tool adaptors |
| Trolley or base | Moves or fixes the unit | Castors, fork pockets, wall or floor frame |
The line page shows these as numbered parts on an exploded sketch; the sketch is a guide to what a plant will ask about, not a model drawing.
Filtration is the point
Dust from woodworking and cutting is often fine and sometimes hazardous, and capture rather than raw suction is the performance that matters. Filter media are specified by class, and a buyer who needs a high level of capture should ask for the EN 1822 grade of the final filter, such as H13, which captures at least 99.95% at the most penetrating particle size. A dust extractor also needs good sealing around the filter and a safe emptying method, since opening a full drum is when many operators breathe the dust. National rules define dust classes for extractors in occupational settings, and a project should name the class and test report required for the market. The filtration grades guide and the vacuum filter page give the vocabulary, and the desk verifies the plant's test documents per project; it does not issue them.
Single-phase and three-phase
Smaller extractors up to a few kilowatts run on single-phase mains and plug into a standard outlet. Larger units use three-phase power, which gives more continuous power for bigger fans and is standard in workshops and factories. A three-phase machine needs correct phase rotation, a motor starter and appropriate cable, and is wired to match the site's voltage and frequency. This is a sourcing detail that should be fixed at the start: the same extractor for Europe and for North America will have different motors and controls, and sometimes different filter housings. The same applies to the plug, which the plant fits to match the destination market.
Where extractors are used
The largest group of buyers is woodworking: joinery shops, furniture makers and sawmills, where dust is collected at each machine or through a ducted system. Other uses include metal grinding, plastics and composites, stone and concrete cutting, food powders and laboratory exhaust. A wet dry vacuum with a fine-dust filter can serve smaller sites, as explained in what is a wet dry vacuum, but continuous production calls for an extractor. For buyer groups and typical pain points see solutions for industrial and woodworking buyers.
Hazardous environments are another matter. Combustible dusts such as fine wood, flour or some metals can form explosive mixtures. Explosion protection falls under ATEX in the EU and similar rules elsewhere, and it is a separate certification path with specific design requirements. It is not assumed by default and is never implied by the fact that a machine is industrial. If the project is in an explosive-atmosphere zone, say so in the first request.
Sizing the machine to the job
The most common mistake in specifying an extractor is to choose by motor power alone. What matters is the airflow at the pick-up point against the resistance of the hose and the filter, because each tool needs a certain air volume at its dust port to capture dust before it escapes. A machine that serves one sander needs less airflow than one connected to several tools through a branched hose, and long runs or small-diameter hoses lose airflow quickly. The practical approach is to list each tool, its dust port size and the hose length, and ask the plant to match motor and fan curves to that list. Include allowance for filter loading, as airflow falls as the filter fills between cleaning cycles. A plant that cannot discuss fan curves and filter area is probably not the right partner for this category.
Standards and sourcing notes
Industrial vacuums and extractors are tested to IEC 60335-1 and the applicable particular standard for the product, and to the CE route in the EU (machinery, LVD, EMC, RoHS and REACH), with UL standards for North America depending on construction. The exact set depends on the product and on the market and is confirmed per project. Industrial and commercial machines typically start from about 20-100 units per model, with samples, production time and tooling confirmed in writing for each program, as shown on MOQ and lead time. Plants serving this category are mainly in the Guangdong and Zhejiang clusters, with a different supplier profile from household appliance builders.
What to put in the request
- Dust type, volume per hour and how the machine will be connected: a single tool, several tools or ducting.
- Power supply: voltage, frequency, single or three phase.
- Filter class and final filter grade by EN 1822 name, and the cleaning method.
- Collection method and drum or bag size, with safe emptying.
- Any explosion-protection requirement, stated up front.
- Quantity and delivery date through the quote form.
The category overview is on commercial and industrial vacuums, and vacuum cleaner types explained places the extractor among the other types.