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1200 Watt electric blower

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Picture of 1200 Watt electric blower
Convert a vacuum cleaner motor into an air blower.

For:
Leaf blowing
Hair drying
Bernoulli ball tricks
Fire blowing
Flame throwing (to be added later)
And more probably...
 
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Step 1: Parts list

Picture of Parts list
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One redundant vacuum cleaner
One aluminium lamp shade
Nuts and bolts
3-core mains cable
Resin for glass-fibre
A T-shirt
Epoxy glue
Assorted screws
A drill
Heavy ring-pulls
Bag-straps
Various ad-hoc bits and pieces

Step 2: The clockwork

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The vac' broke.
The front-end beater & brush assembly failed and the drive-belt snapped.
The vac was replaced.
So I had a spare electric air-pump. The machine was deigned for sucking, the blow just went to waste. Trying to block-up the exhaust vents and divert the output wasn't much good because the case was leaky. Also I'd got a big redundant bag-space and handle.
I took the whole thing apart and stripped out the essentials.
I'm not going to tell you how to take a vac' apart any more than: use a screwdriver and break things.
So I extracted the motor and fan unit, plus the TRIAC speed control, on-off switch and the variable resistor which links into the TRIAC.

Step 3: The motor

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(View picture)
The motor sucks air in the back, and vents it out the front.
Depending upon your perspectve, this either cools the motor or heats the air.
It's a friction-fit, with a rubber band. I needed a new case, and after a few weeks patience found the aluminium lampshade.
I've added 90' angle-brackets to space the motor from the metal-case, but there's still the friction-fit.
The motor was bulked-up with double-sided foam pads and tape, finished with the original rubber band.
A tight-fit, requiring much pushing and finger-work but just right.
How very "Rocketeer"! (http://www.imdb.com/title/tt0102803/ ) Also, add some leather and brass and you definitely have a SteamPunk S'more extinguisher.
VadimS3 years ago
Looks awesome, Making me think about how I'd build one.

I'd like to point out that it's not even close to 1200w, that number may have been on the side of the vacuum but it's marketing bs. I worked for an insulation company. The blower was a realistic 1800w and it could move 1200lb (544kg) of cellulose in an hour, up 20ft (6m).
Admittedly I did skim it so I could have missed you pointing that out.
lemonie (author)  VadimS3 years ago

I don't understand your comment. I read 1200W as power-consumption, but I can't quite link that to 1200lb (544kg) of cellulose in an hour, up 20ft (6m)?

L
VadimS lemonie3 years ago
I was just pointing out that your motor claims it can draw 1200w but if it ever did it would instantly melt. The blower motor we used draws 1800w when running and it's 10* as powerful as a vacuum.

http://www.krendlmachine.com/products/other-equipment/blowers/187

It's a through blower, so it ingests cellulose insulation and blows it through a tube.

It's non consequential, I was just pointing out how ridiculous the marketing has got.
lemonie (author)  VadimS3 years ago

I do not have a problem with a 5A motor, and I don't see how 5A would "instantly melt" much.
What are you talking about?

L
I have a 12 amp Eureka vacuum motor, I don't know what you're talking about either, VadimS. It can pull ME and my brother and it outputs 1.85 horsePOWER in one little tiny shaft.... Power = 115v x12 amps = 1380 watts
1 hp = 768 ( Im pretty sure) which 1.8 hp. 1200 watts is not 5 amps, it is 10 amps. 1380 watts is 1.8 hp and 12 amps. That's how powerful mine is anyway..
lemonie (author)  Justdoofus3 years ago
Thanks.

When you relate amperage to power you need to use voltage too. I'm running on 50Hz 240V (RMS), so 5A is 1200W.
But I only said it was 1200W.



L
I know. The guy said that 1200 watts would melt.... I have had AC motors from vacuums and other appliances that used 240 and 115... Btw, I didn't know that 240 ran on 50Hz.
lemonie (author)  Justdoofus3 years ago
Yeah, it's important when taking things overseas, it affects the way some devices behave power-wise.

L
And I'm assuming that it's alot easier to make 240 volts at their power plants for less amperage..
It's not easier to make 240v, it's just easier to transmit. The more amps you have, the hotter the circuit can get. so if you run 240v through a line, you can transmit the same amount of power in a wire twice as thin.
Oh. I gotcha, Thanks for clarifying. I suppose you need much stronger motors (generators) to even generate 240 volts.
I suppose you would... but the cost of the generator would be easily outweighed by the cost of the extra copper needed to transmit it.
wow-amazing5 years ago
You could probably make a flamer by hooking up the outlet to a carbeurator.
lol, car jokes...
Yus.
oohhhhhhh
wen30004 years ago
who evan has this kind of stuff \
lemonie (author) 6 years ago
Yes, it works just fine. There was talk of turning it into a rocket-pack (with fuel) but that wasn't my idea and I'm not even going to try.
I intend to see what it's like for blowing a fire next weekend

L
please try make a jet pack
sypher5 years ago
i have just gotta say this, ahem, "this really looks like it blows" ha, it looks and from what it sound like really dose blow. I like the resin t shirt trick, and it doubling as a filter. did you get the lamp shade at IKEA?
lemonie (author) 6 years ago
This was very good at enhancing a wood-fire, very good indeed L
I would bloody imagine, think it would be any good at super provoking thermite?? :p
lemonie (author)  Punkguyta6 years ago
Might blow the thermite into a big cloud of dust! Thermite doesn't need air, but I'd like to try blowing some coke or charcoal for melting metals. L
I used coke and an old vacuum cleaner motor in my diy foundry and was able to melt iron with ease.
It would probably work extremely well for that.
twocvbloke6 years ago
Well, this has given me an idea of what to do with the two toy plastic vacs with 1600w and 1800w motors sitting doing nothing... :D Although, if I want a blower (say, for inflating my little rubber boat) in less than 2 minutes, I just use one of my Kirbys with the hose on the bag-outlet and the air filter on the front... :P
SHIFT!6 years ago
What's a Redundant Vacuum Cleaner?
lemonie (author)  SHIFT!6 years ago
There's a bit of an explanation in step 2, but alternatively "surplus to requirements", "of no use (as a vacuum cleaner)". L
gamer6 years ago
i see that you used can opuning things on the strap, very smart
lemonie (author)  gamer6 years ago
Heavy ring-pulls off food cans, and two each. They were very handy. L
stevoIution6 years ago
Good work man, I have been aching to experiment with rag fibreglass but havn't had anything to fabricate. Quick! Make that into a jet engine.
LasVegas6 years ago
Great job lemonie! It almost looks like the device from The Rocketeer! Have you dared yet to strap it on and power it up? :)
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