[Shop-talk] Looking to buy a compressor

[DAVID MASSEY]

 At one point in time the company for whom I work had a flying probe tester for PCB's which used a cushion of air to "float" the moving parts and any water droplets, any at all, would cause the thing to crash.  Therefore we have a dryer on the output of the air compressor.  But in a shop environment the occasional water droplet will pass through an air tool no problem.  A sand blaster doesn't care at all.
Of course a water droplet passing though your paint gun can ruin your whole day, but other than that I'm with you.
 
Dave 

 
 
-----Original Message-----
From: Mark Andy <marka at maracing.com>
To: ShopTalk <shop-talk at autox.team.net>
Sent: Wed, Aug 12, 2020 11:30 am
Subject: Re: [Shop-talk] Looking to buy a compressor

Howdy,
Are you painting or in a super high humidity environment or something?  My experience with compressors is that mostly I can remember to drain the tank every now and then and it all "just works" without any elaborate coolers / separators / whatever.

YMMV.

Mark
On Wed, Aug 12, 2020 at 11:53 AM Darrell Walker <darrellw360 at mac.com> wrote:


The transmission cooler I’m looking to use is a "stacked plate” design, and has a pressure rating of 200 PSI.  It says it has a 29,200 BTU rating:
https://www.summitracing.com/parts/BMM-70274

I do plan to put a small box fan to blow through it as well.
Here are some pictures, but these all seem to be between the compressor and tank, mine will be mounted on the wall after the tank.
https://www.cnccookbook.com/aftercooling-a-compressor-to-cut-down-on-moisture/

-Darrell


On Aug 12, 2020, at 8:35 AM, Jeff Scarbrough <fishplate at gmail.com> wrote:
Good point.  I hadn't thought of air flow rate.  Hook several in parallel?
On Wed, Aug 12, 2020 at 11:26 AM DAVID MASSEY <dave1massey at cs.com> wrote:

 That's a clever idea.  It is an excellent heat exchanger and is good for the pressure.  But it could restrict air flow.  Most are just a long, serpentine tube with fins.  It all depends on what air tools you are using.  It is possible that you couldn't run a sand blast cabinet through it.  But you could hook up the high volume users to bypass the cooler and save the dry air for the tools that need it.
 
Dave 

 
 
-----Original Message-----
From: Jeff Scarbrough <fishplate at gmail.com>
To: shop-talk at autox.team.net <Shop-talk at autox.team.net>
Sent: Wed, Aug 12, 2020 10:12 am
Subject: Re: [Shop-talk] Looking to buy a compressor



On Wed, Aug 12, 2020 at 11:08 AM Pat Horne <patintexas at icloud.com> wrote:


I’d be concerned with using a transmission cooler for an aIr cooler because they are not designed for pressure use. I wouldn’t think a trans cooler would need to be rated at more than 10psi. 

An air conditioner condenser would probably be better.  It even has "condenser" in the name.... _______________________________________________

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