Parker Majestic #2 surface grinder

[DavidR8]

And the grinder has landed!

It is equipped with a coolant pump and tank.

Not sure that I’m going to use coolant though. I can see the benefits though with reduced heat and grit flying around.
Curious what other people do.


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[middle.road]

Proper 'tool' for the job...

 

[Dabbler]

Not sure that I’m going to use coolant though

-- Except for the odd job where there is very little to take off, or the tolerances are great, coolant is a good idea. It happens to be part of the schtick. (heat deferentially expands the metal resulting in a loss of accuracy and poorer surface finish)

If you stick to taking a tenth or 2 at a time, with very little stepover, it can be done, but you will wear your wheels very fast, in around 1/3 to 1/4 of the total life expectancy... Grinding like that takes forever!!!!

You need to get to know this channel he covers surface grinding very well...

 

[DavidR8]

Thanks @Dabbler what do you run in yours?


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[Dabbler]

Thanks @Dabbler what do you run in yours?

Soluble oil from PA. I make it 1/3 stronger than they recommend, it takes longer to spoil. Expect to replace it every 9 months to a year. (I'm making a smaller extraction tank, because I need 10 gallons to fill my old tank) You can use a biocide to help extend it but I'm wary of the aerosols. I use dust extraction to suck the aerosols away, but you can still smell that some of them are airborne in the shop.

We need to compare some notes on accuracy this summer WRT our surface grinders. I bought a clapped out Brown and sharpe, but it started with great quality and large ways, so I thought it was a good investment. I paid almost 3 times your entire deal to get it.

 

[sdelivery]

If you're not going to use it frequently then do not use it.
Quality Coolant cost money and if not maintained and circulated will grow bacteria quite easily.
I was a maintenance machine repairman at an air craft parts plant we had 12 at one point ( this is where I got mine) all were used without coolant by skilled gring hands.
There were many other grinders in the grinding department and most of those used coolant. There were many operations on the cutter grinders that were done dry .
When grinding dry you should be using a dedicated vacuum.

 

[DavidR8]

Holy smokes!
Let me get my grinding legs under me
Thanks for the advice on soluble oil.
The return tank on this thing is huge. Basically 12” wide, 12” tall by 23” deep.


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[Dabbler]

The return tank on this thing is huge. Basically 12” wide, 12” tall by 23” deep.

tiny

-- try 30" X 30" X 28" deep for my B&S. that's huger, but not huge. I've seen twice as large at Moore Industrial here in Calgary, when they did a lot of grinding. Now that's huge....

 

[DavidR8]

tiny

-- try 30" X 30" X 28" deep for my B&S. that's huger, but not huge. I've seen twice as large at Moore Industrial here in Calgary, when they did a lot of grinding. Now that's huge....

Jeepers @Dabbler how big is your grinder that it has such a huge tank?

 

[Dabbler]

6X12 valumaster. I have put the tank in storage, because there's no room in my shop.

I have a small corridor to walk in right now. gotta sell some machines!