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Atlas Mill Coolant Tank

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Mondo

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#1
The subject of having a coolant system or tank comes up in the Atlas Mill threads fairly often. The recirculating pump system has been all but completely transformed into unobtanium. The gravity-feed tank is almost as rare. I see one posted yesterday on Ebay at 9:01 PM PDT... Item # 152076659907 Buy-Now $275. I'd spring for it but my budget has a lacerated artery and I need to apply a tourniquet.

Checking the OEM catalog listing that tank is "about 1 quart" in volume. Being that is was made in USA I can safely presume that is a US quart, equal to 57.75 cu. in. Doing some fast math I find a piece of Sch 40 4" iron pipe 4-5/8" long is just about the same volume. Add a screw-on cap that has been drilled and tapped for 1/8" pipe to accommodate a dispensing valve and I can make a mount for it easily enough and get the same performance for very short money. Best of all it can be painted to look like it belongs there!

Spiral_Chips
 

CluelessNewB

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#2
The previous owner of my mill came up with this solution. I'm not sure what this cast iron tank was originally used for, maybe a filter housing or oil tank for some machine. The cover is plywood. The brass valve is bent and will need to be replaced. I plan to make a new cover, maybe cast one out of aluminum.
IMG_0621.JPG IMG_0623.JPG IMG_0624.JPG IMG_0625.JPG
 

kd4gij

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#3
I have a 1 gal. bug sprayer I use for drip coolant on my Craftsman Atlas lathe.
 

Bob Korves

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#4
Starts at 9:25 and runs about 10 minutes. Looks like it works well.
 

34_40

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#5
Do any of you guys use oils when cutting something on your mill.
I've tried some high sulpher cutting oil once and all I achieved was adding a smell into my shop plus having chips that clumped together.
It didn't change the finish of the cut. I like the idea of a spray coolant more than a cutting oil now.
 

Mondo

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#6
My mill is not operational and the only milling I have done is on my lathe, mostly dry, so perhaps I can't really comment from any actual experience, but FWIW:
During a visit to an old-school commercial machine shop I observed a horizontal mill in operation shaving a small slab of steel. The mill was much larger than a bench-top Atlas but the operation being performed was not outside an Atlas mill capability, other than this particular operation was fully automated mechanically, no DRO or CNC. The machine would make a pass and return, slide the table a few thou to the side then make another pass. All very slowly and completely unattended. I think the operator was observing from a distance while operating a lathe a few yards away.

There was a coolant system dribbling dark oil, I presume high sulfur cutting oil, directly on the cutter about 1/4 of a revolution before it contacted the work. This dribble was very small, but enough to wash the chips away from the cut as the cutter progressed across the work. The oil drained through a screened hole in a corner of the table and through a hose to a tank at the floor for re-circulation. I should also note that the cutter speed was slow, not fast enough to cast off the oil like a fan.

I figure getting the right cutting speed and flow rate is important and may require some experimentation. Too little flow and the chips will clump up and go nowhere, too much and you'll be flooding the shop, too fast a cutter speed and the oil will be cast off like it was dribbling into a fan!

I have heard complaints about mist systems without benefit of an enclosed cabinet filling the atmosphere with a fog of oil and being messy. There too, getting the right flow rate may be key to optimization.

Spiral_Chips
 

34_40

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#7
I agree completely Spiral Chips! To little flow is useless almost. And flooding the part/cutter will just be to messy.
I do like the idea of a cooing mist unit but don't want to deal with the mess.
I've been using a producr called Cool Tool, comes in a aerosol can. But it can still be sloppy.
Right now most of my work has been in aluminum, and I run it dry.

Thanks for the input!
 

Wheels17

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#8
In the first post, Mondo states "The recirculating pump system has been all but completely transformed into unobtanium ".

What do you think a fair price would be for the tank and pump these days?
 

wa5cab

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#9
I think that the last M1-600A that sold on eBay either went for or asking price was around $500.
 

VSAncona

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#10
I saw an M1-550 coolant tank on ebay last year. It sold for just over $300.
 

Wheels17

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#11
I didn't realize that there were two different classes of coolant systems. I'm talking about a W89 Coolant tank, pump, and nozzles. There is almost no information on these on the internet. With e***'s short history, there are no references there either.
W89 Coolant System.jpg
 

VSAncona

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#12
I just purchased an M1-600A last week. I can post some pictures if anyone is interested in seeing it.
 

wa5cab

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Where did you find it and if you don't mind saying, what did you pay for it?
 

Wheels17

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#14
I'd like the same information about a W89 if anyone has purchased one of those..
 

wa5cab

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#15
And/or the 2.5 gallon capacity W88.
 

VSAncona

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#16
I made a video showing the mill and the coolant pump that came with it. The pump shows up around the 9:50 mark:

 

Wheels17

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#17
That's really nice! The one at the store is a separate stand-alone unit that could be used on a lathe as well. The pump is very similar. And the cutters!!!
W89 Coolant System.jpg Pump.jpg
 

VSAncona

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#18
Wheels17 -- Thanks. I've only seen one of those pumps like you have and it was on ebay a few years ago. It was still in the box and looked like it had never been used. I can't remember what it sold for, unfortunately. Do you have the reservoir tank for the pump?
 

Wheels17

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#19
Yes. Here's the link to the Craigslist ad. Lots of parts pictures, but I didn't take pictures with it all together!

This is copied from a for sale thread. I saw the prices on other Atlas coolant systems and just guessed at a price.

#1
I'm a volunteer for a used tool store in Fairport NY that donates their profits to an organization that assists seniors who wish to remain in their house rather than go to a nursing home. Information on the store can be found at https://toolthriftshop.org/ and information on the charity is at https://fairportbaptisthomes.org/services/senior-options-for-independence/ .

Here are the links to our Craigslist ads for these Atlas accessories


https://rochester.craigslist.org/tls/d/turret-tailstock-for/6708058424.html
https://rochester.craigslist.org/tls/d/atlas-toolpost-grinder/6722402913.html
https://rochester.craigslist.org/tls/d/atlas-lathe-mill-coolant/6720585233.html

Feel free to contact me with questions.
 
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