Bench grinder oil cooler/filter canister

[Randy S.]

I've got a 1970's bench grinder with the water side of the oil cooler plugged.:gah:

This is the one that's also the filter can.

Anybody got any ideas other than replacement?

[ga1279]

Randy, I don't see any major problem with a field replacement filter and / or oil cooler. There are many venders out there who supply water cooled heat-exchangers and filter housings. If nothing else is wrong with the filter assembly leave it there as is and pipe a refrigerant to oil heat exchanger in from the economizer to the evaporator. How hot does the oil get without the cooler? I don't have any #'s off the top of my head, but I've done this before, the refrigerant heat exchanger and it has worked great.-GEO

[Healey Nut]

How about removing it and filling the water side with that well know Limescale ,Rust ,Calcium build up dissolving chemical ?? You may have to do it several times .

[Randy S.]

I had some ice machine cleaner so I'm trying to force that through it with house water pressure. Letting it sit over the weekend.

Gotta try something.

[heavymetaldad]

I'd worry about the integrity of the tubing.
Is the OEM filter cooler assy. still available?

[klove]

Oversized oil to water or oil to refrigerant cooler with an AMOT valve to control final temp for delivery to bearings. Brazed plate HX works well.

[Randy S.]

Not sure if it's still available. Been several years since I replaced one for the same reason on another relic. Knowing the "T" organization, the price will probably have me looking for another type of oil cooler and just use the existing for a filter can.

[Randy S.]

4200 for a replacement.:eek:

It's off the unit sitting there upside down full of ice maker cleaner.

[heavymetaldad]

4200 for a replacement.:eek:

It's off the unit sitting there upside down full of ice maker cleaner.

double :eek2::eek2: and a :gah:

[Randy S.]

Maybe I'll try to run a piece of speedometer cable through it.

A coaxial water cooled condenser might be the answer, too.

[Nuclrchiller]

Randy, I would be very, very worried about that oil cooler failing sometime later. And you know what happens then - chiller full of water! Back in the mid to late 1980's I saw the results of 2 or 3 oil cooler failures. These machines were not under contract, so I didn't know their history. Did someone have your problem? Did they attempt your solution? I don't know. I do remember these chillers were all in different textile mills (but don' remember if same owner) and in same area - Talladega, Alabama. I remember talking with my then service manager and speculating was there something in chill water make-up (city water or well water?) or some process chemical getting in air washers? We never did find an answer, just replaced coolers and made all other neeeded repairs - on their dime. If you are able to clear out this cooler, who is liable for any future failure of it? That could be a huge gamble there. My advice is to replace it - OEM or otherwise.

[Randy S.]

Roger, copy. Not sure which direction this will go at this point. Good thing it's winter time.

Got an outfit spec'ing a brazed plate Ht exch, and maybe just use the existing for a filter housing only. A three ton or so coaxial condenser would also work.

[heavymetaldad]

And for temp control? A Penn valve, or go with something pneumatic?
I've replaced failed Penn valves with a pneumatic setup. Much more cost effective and reliable.

[cperk]

I've got a 1970's bench grinder with the water side of the oil cooler plugged.:gah:

This is the one that's also the filter can.

Anybody got any ideas other than replacement?

Hey Randy we've got an old benchgrinder we are fixing to send to the scrapyard and it has'nt been ran in 9 years, but has been filled with glycol ever since. You interested? E-mail me.

[Randy S.]

I had just replaced the Penn valve last year, thinking that it wasn't opening...
We've been going away from pneumatics as much as we can.

The cooler has 200psi of nitrogen on it now for a pressure test, after I got it cleared out.

[Randy S.]

I was hoping to have scrapped these two about five years ago.
Might be interested in the oil cooler, though.

[CaptJackSparrow]

Pressurize with nitrogen to about 300 psi and tap the case with a hammer. Works " sometimes". Never use acid or corrosive liquids that can attack the copper. That could turn out bad. You could wind up with rust colored boggers. :)

[supertek65]

I sent 6 of them to chiller heaven last year !!!!!!!!!!!!!!!!!!

may Ruben and Willis bless their stator!

[heavymetaldad]

I sent 6 of them to chiller heaven last year !!!!!!!!!!!!!!!!!!

may Ruben and Willis bless their stator!

sooperdoopertek, the chiller killer strikes again.........

[supertek65]

i did not exactly break all 6 of them by myself!!!!!!!!!




sooperdoopertek, the chiller killer strikes again.........