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Thread: Coolant mixer

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    Default Coolant mixer

    What are you guys using to mix your coolant? We are currently using this https://www.mscdirect.com/product/details/02036606 , but the mix ratio is never spot on, and it stops working after a couple of years. I worked at small job shops before, and we would just dump the concentrate in the tank till it read correctly on the refractometer.

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    I worked at one place that used a mixer, but was designed for use with a 5 gallon bucket. Much more portable that way, and cheaper to replace when/if it dies...

    Other than that, no help, sorry.

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    Straight oil. No mixing.

    Easy peasy.

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    Quote Originally Posted by TeachMePlease View Post
    Straight oil. No mixing.

    Easy peasy.
    That trim gets expensive, but IT AINT MY MONEY!!

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    Pour a bit into a 5 gallon bucket of water. Mix with a paint and mud mixer in a cordless drill. Dump into coolant tank.

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    This is what we use. I can't remember how many years I've had It. Still works like a champ. About $100 cheaper than the one you linked to.

    Mini-Jetmix

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    I can see a coolant mixer coming in as a huge time saver in a big shop with machines all using the same fluid.

    Small shops, eh. Just mix it by hand

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    Quote Originally Posted by AARONT View Post
    Pour a bit into a 5 gallon bucket of water. Mix with a paint and mud mixer in a cordless drill. Dump into coolant tank.
    That wouldn't have worked at my last shop. We were adding 200 gallons of coolant a day! We had a mixer that pulled coolant from a 55 gallon barrel on wheels with a hose that fed it from a spigot on a pole. We would just wheel the barrel to where the coolant was needed and open the inlet valve to the mixer.

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    Automatic Coolant Refill

    And for the saw, I just spray from the coolant hose.

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    Venturi mixers rely on incoming water pressure, which can fluctuate.

    The dropping level of coolant in the drum also affects the mixture.

    Mixers going bad after a few years is probably due to contamination. Clean and rebuild.

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    Quote Originally Posted by Mike1974 View Post
    I worked at one place that used a mixer, but was designed for use with a 5 gallon bucket. Much more portable that way, and cheaper to replace when/if it dies...

    Other than that, no help, sorry.
    5 gallon buskit model? You remember what brand?

    I only buy in 5 gallons...............most mixers are for 55 gallon drums...................anyone know of a bucket model?

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    I only buy in 5 gallons...............most mixers are for 55 gallon drums...................anyone know of a bucket model? [/B]


    The Mini Mixer I linked to earlier Is a bucket model. We just made an adaptor to fit a drum and extended the pickup. Works fine.


    PMIS- MIXERS

    oip.jpg[B]

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    And if you want a drum mixer here is a steal of a deal on Ebay


    COOLANT JET MIXER PROPOTIONER | eBay

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    Quote Originally Posted by metalmadness View Post
    I can see a coolant mixer coming in as a huge time saver in a big shop with machines all using the same fluid.

    Small shops, eh. Just mix it by hand
    Yeah, every other place I worked we just dumped coolant in a bucket, added water, then cycling it through the machine would mix it well.

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    I've been looking around and I've heard from a few people this works well with 5 gal buckets.

    Groz Plus Venturi Mixers for Metalworking Fluids (Coolants, Cutting Fluids) and Cleaners | Coolant Consultants, Inc.

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    Here's my home brew solution to a venturi coolant mixer. I bought a $5 aquarium fish tank venturi pump and added a precision flow metering valve from McMaster Carr and a few fittings. The plastic ball valve that came with the fish pump (in the assembly pictures) was not able to be easily adjusted, but the concept worked great.

    Total cost was $70 and it works very well. Been using it for the past year now.

    McMaster-Carr

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
    Attached Thumbnails Attached Thumbnails 20190428_111131_resized_1.jpg   20190420_152647_resized.jpg   20190420_152655_resized.jpg  

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    Quote Originally Posted by Philabuster View Post
    Here's my home brew solution to a venturi coolant mixer. I bought a $5 aquarium fish tank venturi pump and added a precision flow metering valve from McMaster Carr and a few fittings. The plastic ball valve that came with the fish pump (in the assembly pictures) was not able to be easily adjusted, but the concept worked great.

    Total cost was $70 and it works very well. Been using it for the past year now.

    McMaster-Carr

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
    I like the looks('n cost) of that.....................

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    I bought this product from MSC a year ago. Use it every day between 3 machines that use the same coolant. No issues yet. https://www.mscdirect.com/product/details/09407008
    It saves us almost $500 buying the 55 gallon drum over the same amount in a 5 gallon bucket. Seems as the the drum has lasted longer too.

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    After screwing with venturi mixers and buckets for way too long, I bought a Dosatron last year. No more worrying about coolant BS. Just put the inlet in the drum (or bucket), set the mix %, and get back to work.

    The best thing about the dosatron is it works just fine if you have low flow coming out of a filter stack.

    Dosatron Water Powered Dosing Technology | Dosatron

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    I use a GROZ and have for years ,,, it works great and I can adjust it to what i need ,,, its not dead nuts on the mix but gets me in the ballpark and I have a easy time keeping the machines between 7 and 9% ,,, I just put a bucket of coolant mix on a cheap little hand cart and drag the hose around the shop ,,,


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