Anyone using cool mist with their grinder?

E

Eric Kidwell

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Dec 27, 2012
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I was just wondering if anyone was using a Cool Mist system with their grinder and what your thoughts were?
 
Thanks Count. I've watched this before as it was Travis W. who recommended it.
Would still like to hear from others.
 
I used multiple cool mist systems on just about anything you could think of for ten years at one job, im totally going for this. I've used it on grinders and sanders, but not yet making a knife. I need to buy a head anyways for my lathe and mill.
 
Hey Ian,
I was hoping to see you in the chat room last night and ask you about this.
The guy from the Video says it works really well in another video,but very messy.

Travis W. uses it as well. Grinds already hard chef knives to 6 thousands without any problems at all with heat.:D
 
Eric Kidwell said:
Hey Ian,
I was hoping to see you in the chat room last night and ask you about this.
The guy from the Video says it works really well in another video,but very messy.

Travis W. uses it as well. Grinds already hard chef knives to 6 thousands without any problems at all with heat.:D
Click to expand...

That was part of the reason I was thinking about getting this going right away. I have quite a few orders for large flat ground kitchen knives, and I have a couple pre-hardened flat blanks that need ground to final bevel.

There's a very nice pressure-pot system that is a few hundred dollars, that uses a pressurized coolant container, and has a separate regulator for coolant pressure and air pressure.

Most of the traditional mister systems use a suction or gravity feed, and both can be tempermental. With a gravity feed, you have to move the reservoir below the sprayer afterwards or else it will sit and drip, unless you have it valved, and most of the time check valves end up clogging up due to crud growth in the coolant. A suction feed takes a minute to get going, and is very susceptible to crud as well.

The pressure pot system's reservoir is closed so growth is limited, and the pressurized coolant feed makes for the most easily adjustable and reliable mist coolant system I've personally used.

I will probably build my own using a Jacuzzi filter housing as the coolant reservoir, but if I wasn't to do that, I would feel the extra price is very, very worth it considering the years and and years of trouble I had with about every brand of suction or gravity feed mister system on the market.
 
Karburized said:
I imagine the air cooling units are probabaly less messy than the liquid ones?http://www.travers.com/cold-air-gun...rch=block id 65085 and class level3 id 298427

Been hemming and hawing about this since I don't have a dust collector.
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It's actually less messy than you'd think if you get it set up just right. Most of the coolant is turned into steam or sticks to the belt/workpiece and evaporates. It also has better lubricity than water, from what I understand.

It's a really good option for small prototype machine shops, where toolroom machines with minimal chip guards are being used, because flood coolant is just too messy, and air cooling doesn't take enough heat away.

I do have a dust collector, but certain knives are thin compared to the heat load you're putting on them, so dipping in the bucket can get a bit tedious.
 
HallHandmade said:
That was part of the reason I was thinking about getting this going right away. I have quite a few orders for large flat ground kitchen knives, and I have a couple pre-hardened flat blanks that need ground to final bevel.

There's a very nice pressure-pot system that is a few hundred dollars, that uses a pressurized coolant container, and has a separate regulator for coolant pressure and air pressure.

Most of the traditional mister systems use a suction or gravity feed, and both can be tempermental. With a gravity feed, you have to move the reservoir below the sprayer afterwards or else it will sit and drip, unless you have it valved, and most of the time check valves end up clogging up due to crud growth in the coolant. A suction feed takes a minute to get going, and is very susceptible to crud as well.

The pressure pot system's reservoir is closed so growth is limited, and the pressurized coolant feed makes for the most easily adjustable and reliable mist coolant system I've personally used.

I will probably build my own using a Jacuzzi filter housing as the coolant reservoir, but if I wasn't to do that, I would feel the extra price is very, very worth it considering the years and and years of trouble I had with about every brand of suction or gravity feed mister system on the market.
Click to expand...


Do you have a link Ian?
 
I watched a "shop Update" video by the same guy in the above video and he had his entire grinding room covered in tarps including the floor:barf::thumbdn:. This is not really an option for me as my shop is kinda small.
 
We have one of the mist systems on our CNC mill and it works well, but we dont do alot of hogging should be great for a grinder. If you use it on a belt sander like in the video will you have to use a special belt that is made to be wet, due to the adehsive that the grit is put on with?

Im not sure if its an old wives tale or not but make sure your wheel is running on the grinder if your coolant is on. Otherwise one side of the wheel gets loaded up with coolant which unbalances your grinding wheel.Supposedly this will cause your well to explode when you turn the grinder on.
 
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Not much to add, just wanted to say that it's great to see a Gavko video here. I think he does outstanding work and has come so far in such a short time.

Sorry, I know the thread isn't about him or his knives, just nice to see. He's one to watch imo, and I'm not at all surprised to see him utilizing as much technology as is available. :)

Btw, we use air cooling (besides oil flooding) exclusively for machining and grinding at work. I'm not all that impressed by it. Better to move chips than anything else.
 
OkefenokeeKnives said:
We have one of the mist systems on our CNC mill and it works well, but we dont do alot of hogging should be great for a grinder. If you use it on a belt sander like in the video will you have to use a special belt that is made to be wet, due to the adehsive that the grit is put on with?

Im not sure if its an old wives tale or not but make sure your wheel is running on the grinder if your coolant is on. Otherwise one side of the wheel gets loaded up with coolant which unbalances your grinding wheel.Supposedly this will cause your well to explode when you turn the grinder on.
Click to expand...

This is true for stone grinding wheels. It doesn't apply to belt grinders.
 
No problem Strigamort.
Gavco has come a long way. Wish he would talk a little slower and not make "hyper speed videos"
 
I use Cool Mist in my dip tank when grinding and it works very well...
cools steel quicker than water and actually makes the steel feel cooler
than ambient temp.. also there is no rust in your dip tank, everything
just falls to bottom and sits.

Vern
 
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