# Dust extractor for cnc

**URL:** <https://forum.onefinitycnc.com/t/dust-extractor-for-cnc/24103>\
**Category:** Uncategorized\
**Created:** [December 19, 2023, 9:52pm UTC](https://forum.onefinitycnc.com/t/dust-extractor-for-cnc/24103 "2023-12-19T21:52:49Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [December 20, 2023, 10:38am UTC](https://forum.onefinitycnc.com/t/dust-extractor-for-cnc/24103/9 "2023-12-20T10:38:23Z")

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Hey all,

dust collection systems like the [Harbour freight 2 hp](https://www.harborfreight.com/35-gallon-2-hp-high-flow-high-capacity-dust-collector-59726.html) (low end) or the [Felder AF 22](https://www.felder-group.com/en-us/shop/air-filter-dust-extractor-sc123618/af-22-dust-extractor-modular-system-sp123646) (high end) use [induction motors](https://en.wikipedia.org/wiki/Induction_motor) that have no carbon brushes, have a high efficiency and run slow and quiet. Even when they are offered for single-phase AC supply, they have induction motors, in this case the induction motor is a [capacitor start induction motor](https://en.wikipedia.org/wiki/AC_motor#Capacitor_start_motor).

Shop vacuum cleaners use [universal motors](https://en.wikipedia.org/wiki/Universal_motor) with their loud, sparkling [carbon-brush commutators](https://en.wikipedia.org/wiki/Commutator_(electric)), which also often run on much higher speeds than a dust collection system. And they need carbon brushes to be replaced regularly.

- [What is the difference between a shop vacuum cleaner and a dust collection system?](https://forum.onefinitycnc.com/t/suckit-dust-shoe-bristles-causing-blockage/14577/2)

However, there was reported that with the use of shop vacs all dust was collected successfully with a Dust Deputy and 70 mm (2½″) hoses [here](https://forum.onefinitycnc.com/t/elite-foreman-dust-collection-dust-deputy-2-5-shop-vac-tested/19999) and [here](https://forum.onefinitycnc.com/t/elite-foreman-dust-collection-dust-deputy-2-5-shop-vac-tested/19999/15)

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