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Compressor cooler bracket

K Powers

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Jul 17, 2013
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Alabama
Am I over thinking this bracket? Cooler mount is solid but all strength is i the bottom so the top has some vibration. Don't want to chew up the copper air line or the aluminum cooler.
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bsaint

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Wow thats pretty good. The one downfall I always saw with the aftercoolers was you can't get away from the vibration. Looks like your design is better than Champions lol
 
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K

K Powers

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Thanks that bracket has been a major PITA. I've seen then on flimsy belt guards so maybe its tough enough to take the vibe

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gorilla

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I would brace the top of the bracket to a head bolt, but I over think things too.
 

MP&C

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I think the cooler would be more effective away from the heat of the pump motor and using a separate cooling fan. Depending on the rotation of the "bladed" pulley, you're either blowing hot air from the cooler over the pump motor, or blowing real hot air from the pump motor over the cooler. In either case, under heavy usage it will be compounding the heating issue.
 
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K Powers

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Alabama
Gorilla - that's the direction I was thinking of going, try and find a bolt to tie into and come back to the upper cross section
Bsaint - don't have a belt guard this compressor is kind of a mutt, don't have the patience or expertise to craft up a full belt guard - that's how I started this bracket adventure
 

nine4gmc

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Dallas
I would brace the top of the bracket to a head bolt, but I over think things too.

This^.

I think the cooler would be more effective away from the heat of the pump motor and using a separate cooling fan. Depending on the rotation of the "bladed" pulley, you're either blowing hot air from the cooler over the pump motor, or blowing real hot air from the pump motor over the cooler. In either case, under heavy usage it will be compounding the heating issue.

And this^. It needs a top strap to something solid. I think I would have went perpendicular to the belt, used a separate fan but that's just my $0.02
 
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K Powers

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Alabama
I think the cooler would be more effective away from the heat of the pump motor and using a separate cooling fan. Depending on the rotation of the "bladed" pulley, you're either blowing hot air from the cooler over the pump motor, or blowing real hot air from the pump motor over the cooler. In either case, under heavy usage it will be compounding the heating issue.

the pulley will pull air through the cooler and over the pump - I agree not perfect but for now its gonna have to work. A number of member have posted very good examples of that set up - when I get a blasting cab I'll re attack the stand alone cooler
 

bsaint

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OP is right - don't buy a stand alone fan.

All your efficiency goes down the toilet when you add ANOTHER electric motor and fan to cool the air. If you add up all the heat, you just made your air compressor less efficient if you add a 2nd fan than if you ran without an aftercooler. The electric fan would have to remove more heat in BTUs than the motor kwh to btu conversion.
 
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C96

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Nov 30, 2013
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How about installing a fan blade on the motor pulley and moving the after cooler over to it. The fan will spin much faster than the pump flywheel and circulate much more air through it.
Something similar to this: See it in action here

SaylorBeallBaseMounted.jpg
 
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pcmeiners

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Your brackets look pretty strong, your cooler is light weight. On my Curtis, I have a much larger/heavier cooler in a steel frame and I still use the pulley guard, so I bent up 3 wide, 3/8" thick brackets which support both; made up a light top bracket 1/8.

"I would brace the top of the bracket to a head bolt" Agree, would definitely get rid of some resonant vibration, less stress on the bottom bracket welds.

Agree with others, the air traveling over the pump will not be overly warm as long as the unit is not in an enclosed area.
 

gearhead1

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Ditto on a top bracket. What happens is as the machine vibrates, the cooler will vibrate and it drives the energy back into the mount. The break point will be where the square tubing is welded tot he plate. A top strap of some sort will greatly reduce the energy driven into the mount.

To visualize, put your hand on the top of the cooler and move it back and forth slightly, that's what is happening while it is running. Imagine you grabbed the top and just yanked on it, it would break at the mounts. The vibration over time will fatigue the metal, at those points.

The fab work is absolutely great, I'd just add a top strap for longevity.
 
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K Powers

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Alabama
Added the strap to the lower end of a head bolt has almost zero vibe now
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zmaxmotorsports

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I think the cooler would be more effective away from the heat of the pump motor and using a separate cooling fan. Depending on the rotation of the "bladed" pulley, you're either blowing hot air from the cooler over the pump motor, or blowing real hot air from the pump motor over the cooler. In either case, under heavy usage it will be compounding the heating issue.
:beer:
Id be worried about the belt taking it out alsi if its mounted behind the guard.
 
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K Powers

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Alabama
thanks very happy with how solid it turned out. It is removable, but it shouldn't eat up belts alignment is good - I also ran it to make sure the little movement in the belts wouldn't hit with the bracket between the pump and motor.

now I have to get serious about bending up the copper tubing to connect the cooler - so far its been kicking my ***.
 
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