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April 20, 2019, 02:15:28 pm
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Reusing cutting oil

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Author Topic: Reusing cutting oil  (Read 1417 times)
bgast1
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« on: September 29, 2013, 12:02:50 pm »

I know there are threads here that discuss it but I can't find them. What are some of the rigs that you all have set up to filter and reuse your cutting oil. I have a 10" saw and I have some ideas but I would like to see some of you all's way of doing it.
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hulagrub
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« Reply #1 on: September 29, 2013, 12:06:01 pm »

Bob, I have a bucket with holes in the bottom with a paper sack in it. This sits on top of another bucket and it captures the sludge in the sack, with very clean oil in the bottom bucket, anyway clean enough for cutting.
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bobby1
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« Reply #2 on: September 29, 2013, 12:36:53 pm »

I use the same method except I use a double bag to get better filtering. It takes more time, though.
Bob
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hardrockcafe
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« Reply #3 on: September 29, 2013, 01:45:13 pm »

I use the same one bag method, but sometimes have had to use a second bag when the bottom starts coming out of the first one.

Chuck
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bgast1
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« Reply #4 on: September 29, 2013, 02:13:57 pm »

The idea that came to me this afternoon is to get a bucket that a colander will fit over and not fall in and set a paper sack in that colander. How long does it take to filter through the paper sack?
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RockIt2Me
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« Reply #5 on: September 29, 2013, 03:08:28 pm »

Drill holes in the bottom of the top bucket.



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« Reply #6 on: September 29, 2013, 03:29:13 pm »

takes days to weeks
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hulagrub
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« Reply #7 on: September 29, 2013, 04:06:15 pm »

Well Bob we are talking 2+ gallons of sludge and oil, so capacity in a colander could be an issue. Time depends on temps, how much sludge etc.
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hardrockcafe
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« Reply #8 on: September 29, 2013, 09:16:27 pm »

Heck, I've been filtering the same sludge for over a year!  :-)  Granted, I'm not getting much out anymore, but I'm in no rush to toss it as long as I'm still getting some oil from it.

Chuck
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bgast1
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« Reply #9 on: September 29, 2013, 09:39:18 pm »

I don't think I have a gallon in my saw. It is only a 10" saw
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« Reply #10 on: September 29, 2013, 09:55:07 pm »

a colander can handle smaller quantity. my 10" beacon starr has a wide tank. you must have a narrow tank.

anyway, the point of a colander is many holes. it is a course filter. you can use one but it will not work better than a bucket with a few holes because here the bag is a very fine filter. the bucket hole is just a drain. one drain hole will work as well as 1000.
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kennyg
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« Reply #11 on: September 29, 2013, 11:09:11 pm »

how about using something like this. You can get several staining meshes depending on how clean you want it.

http://www.amazon.com/Deeks-Strainer-Insert-600-Micron-CDFEZ-5HD/dp/B0027D5PBW/ref=sr_1_7?ie=UTF8&qid=1380516888&sr=8-7&keywords=oil+strainer+and+container
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hardrockcafe
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« Reply #12 on: September 30, 2013, 09:38:12 am »

Cool idea.  I wonder if they could handle the weight of heavy mud from an 18" saw...

Chuck
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kennyg
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« Reply #13 on: September 30, 2013, 10:07:04 am »

I don't know if it would or not good  question plus as cheap as they are factor in shipping and, well you see where I'm going. On the other hand I'm not sure that trying to recover oil from the sludge itself is not counter productive. I can see cleaning the oil up while its still in suspension though.
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« Reply #14 on: September 30, 2013, 10:26:02 am »

I use a fifty gallon plastic drum with a hole cut on top that fits my bucket with holes in the bottom half, I use a pillow case sheet for the fine filter and inside that I use a paint mesh to discard the mud ball after one month. All four items used are recycled over and over. After the fourth bucket I power wash the pillow case.
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