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Fan for quickly cooling hot parts

iamhomeless

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Jul 6, 2009
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336
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Indy
I frequently use a torche to drop interference fit parts out of housing and need a fan to cool them down quickly, it would also do double duty to move some air around my bay during the hotter parts of the summer, so a squired cage is less than ideal.

I have been borrowing an M18 leaf blower when needed to get parts cooled off quickly and it does a great job, but it is really damn loud, even on the slower settings.

What should I be looking for, cfm, speed, some other spec?

Any suggestions on anything that you guys have tried?
 
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CGarage

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Nov 23, 2018
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United States/Switzerland
I frequently use a torche to drop interference fit parts out of housing and need a fan to cool them down quickly, it would also do double duty to move some air around my bay during the hotter parts of the summer, so a squired cage is less than ideal.

I have been borrowing an M18 leaf blower when needed to get parts cooled off quickly and it does a great job, but it is really damn loud, even on the slower settings.

What should I be looking for, cfm, speed, some other spec?

Any suggestions on anything that you guys have tried?


What size are the parts you are most often dealing with?
 

no704

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Apr 27, 2016
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D0E44C7D-DFC9-4EB8-8A8D-0C5E9B92B993.png
A bit spendey for your needs, got the wife one. She loves it!
 
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WAID

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Nov 28, 2013
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Longview, WA
For air quenched parts at the foundry I worked at used 2-3 15hp axial fans to cool stuff down(with or without water spray). Your cooling needs are less extreme but a little harder in some ways. For home use, something like this harbor freight ventilator or this high velocity fan is probably decent for dual purpose. The more velocity and turbulence you get to the surface of the part the more you'll break up the boundary layer and that maximizes cooling. The blower you use now has an advantage on that front. The high velocity fans can do a decent job of moving air around but that style seems to be universally kind cheap and not in the good way.
 
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I

iamhomeless

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Joined
Jul 6, 2009
Messages
336
Location
Indy
For air quenched parts at the foundry I worked at used 2-3 15hp axial fans to cool stuff down(with or without water spray). Your cooling needs are less extreme but a little harder in some ways. For home use, something like this harbor freight ventilator or this high velocity fan is probably decent for dual purpose. The more velocity and turbulence you get to the surface of the part the more you'll break up the boundary layer and that maximizes cooling. The blower you use now has an advantage on that front. The high velocity fans can do a decent job of moving air around but that style seems to be universally kind cheap and not in the good way.
Thanks!

Velocity vs air volume was the real question on how to start looking at this. And you have definitely given me a good starting point on my search. I will probably skip the HF unit as I will be running this thing on high multiple times a day to cool parts, and I would prefer to have the peace of mind of something that might last longer.
 

WAID

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Joined
Nov 28, 2013
Messages
120
Location
Longview, WA
Thanks!

Velocity vs air volume was the real question on how to start looking at this. And you have definitely given me a good starting point on my search. I will probably skip the HF unit as I will be running this thing on high multiple times a day to cool parts, and I would prefer to have the peace of mind of something that might last longer.
There are certainly higher budget(and maybe higher quality) options. Glad I was able to give you a good starting point.
 

DHCrocks

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May 2, 2008
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1,349
Location
Hawaii
if its only small (5"x10") just hit it with your compressor, they have those high flow nozzles that use a venturi to boost the volume of air blowing.
 
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