Hi all. I'm looking for an inexpensive very small unit that has a universal/brushed motor so that it can be speed controlled. I've been looking at the shop-vac 5010327, but can't get confirmation of what sort of motor it uses. As a cheap-end unit, I'd expect a brushed motor. Shop-Vac customer services claims virtually all their vacuums are brushless now including that one, but I don't think they really had a clue of what I was talking about. Any suggestions appreciated. Thanks!
Inexpensive shop-vac type unit using universal/brushed motor
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sptyks
Well-known member
MM300:
I just purchased this Vacmaster 6 gallon 3HP wet/dry shop vac for $61.99 and I am quite pleased with it so far. It is very well designed and has excellent suction and airflow. Even though it is only 3HP it has the same suction and airflow as the ShopVac 4.5HP units. I haven't tried wet pickup yet but it works great for dry pickup. It comes with 12ft. cord 7ft. hose and more attachments than other machines.
It sounds like it uses a standard universal motor to me.<a name="start_37396.399051"></a>
http://www.vacmaster.com/vq607sfd-stainless-steel-wet-dry-vac-6-gallon/
I just purchased this Vacmaster 6 gallon 3HP wet/dry shop vac for $61.99 and I am quite pleased with it so far. It is very well designed and has excellent suction and airflow. Even though it is only 3HP it has the same suction and airflow as the ShopVac 4.5HP units. I haven't tried wet pickup yet but it works great for dry pickup. It comes with 12ft. cord 7ft. hose and more attachments than other machines.
It sounds like it uses a standard universal motor to me.<a name="start_37396.399051"></a>
http://www.vacmaster.com/vq607sfd-stainless-steel-wet-dry-vac-6-gallon/
Hi. Size is important in this application -- the smaller the better, that's why I'm trying to find out what kind of motor this unit uses, though if I can find one of similar size that will work and is easily available that might be OK. Thanks.
sptyks
Well-known member
universal motor
Most wet dry vacs will use a universal motor, I'm not aware of any standard vac that would use something different.
Mike
Most wet dry vacs will use a universal motor, I'm not aware of any standard vac that would use something different.
Mike
madman
Well-known member
Yeah, most vacs in general, besides battery powered ones, will use a universal motor. They're simple to make and cheap. Brushless DC motors are really only usable for smaller applications, in general. And I don't think I've ever heard of nor seen a vacuum with an induction motor.
If you need just the motor, go to harbor freight and buy a small power tool, like a drill or small saw. One of their small shop vacs would probably do well if you need something for a project or whatever.
If you need just the motor, go to harbor freight and buy a small power tool, like a drill or small saw. One of their small shop vacs would probably do well if you need something for a project or whatever.
DC brushless motors for small applications-the Kobalt and Greenworks Brushless electric mowers I have,60 and 80V lithium battery powered.These have very large brushless DC motors!So they are not for small uses anymore.Some FL washers use a similar motor.The brushless motors require a circuit board for them to work-so that raises the cost and makes the motor bulkier.
This application does require suction (partial vacuum) so a simple motor won't suffice. I take it then that the expert consensus here is that an inexpensive, small shop-vac like the 5010327 is very likely to have a universal, brushed (and therefore loud) motor, irrespective of their customer service reps claiming that almost none of their vacuums have brushed motors? And that I'll be able to safely slow it down with a triac-based speed controller? Thanks.
madman
Well-known member
Yeah most likely.
compactc9guy
Well-known member
if oyu want a reliable shopvac nothing beats a genuine SHOPVAC by SHOPVAC cooperation some have brush less motor its the original often duplicated never matched .
sptyks
Well-known member
Many young inexperienced Techs don't know the difference between a brushed Universal motor and a simple brushless Inductance motor or the newer brushless DC motors used in many cordless vacs.
I think it would be very rare to find any kind of brushless motor in an inexpensive shop vac.
I think it would be very rare to find any kind of brushless motor in an inexpensive shop vac.
The brushless motors are found only in very high end commercial WD vacuums-typically the motyors and boards are sourced from Emerson.They are the largest maker of brushless motors from tiny ones to large integral 1 Hp to 3Hp.The very large ones run from 3 ph power.NSS uses a brushless motor in their high end Bronco WD vacuums.They isolate the board from the possible damp exhaust airstream-the motor is full bypass-it has its own cooling fan.
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