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Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns, & Hot Liquor Tanks > Cutting top off a Sanke keg using angle grinder
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Old 11-15-2008, 10:55 PM   #1
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Default Cutting top off a Sanke keg using angle grinder

The start:



First grinding action -


Cutting round the top -


Half way done -


I know - no long pants or long shirt. Not sure I own any out here in the desert....

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Old 11-15-2008, 10:57 PM   #2
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Some sparks -


Cleaning up the cut


Final Product -


Anyone need a top?

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Old 11-15-2008, 10:59 PM   #3
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Here's the grinder I used:


4.5 inch metal cutting blade

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Old 11-15-2008, 11:42 PM   #4
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That all looks familiar.

I cut the top out of one today, too. Took longer than I thought. I had an old, half used wheel in my grinder, so the going was slow. Once I put a new wheel on, it went a lot quicker.

Keg was half full of rotten Miller. It smelled like pee and vodka when I was cutting.

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Old 11-16-2008, 12:04 AM   #5
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I just cut mine last sunday...I thought for sure I was butchering the keg into something even Biermuncher would be ashamed of, but it came out pretty nice! I deviated from the line once or twice, but it was nothing my die-grinder and dremel couldn't fix. I've got several 12" lids that fit the hole perfectly, so I won't bother to fashion a lid from the cut-out top.

Pretty fancy breathing apparatus you used, that didn't occur to me. I wore shorts and short-sleeves too, but I did put on my long welding gloves and wore earplugs.

Now to find a local shop that will weld some couplers in. 10 gallon batches, here we come!

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Old 11-16-2008, 01:04 AM   #6
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I'm just going with some bolt in connectors. Spigot, thermometer, sight glass, the whole works.

Is a 1/2" step drill big enough?

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Old 11-16-2008, 01:10 AM   #7
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Man, get yourself a 1/16" thick cutting wheel for that thing ;-)

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Old 11-16-2008, 01:43 AM   #8
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Wow...that's a brute force approach if I've ever seen one. Take Bobby's advice. Cutting wheels are for cutting, grinding wheels for grinding. If you can find a 1/32" cutting wheel, you get a really fast, clean cut. Just be careful not to put any side load on it.

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Old 11-16-2008, 01:53 AM   #9
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Whenever I take on any project that I can't use a straight edge for, the first thing I think of is, "How can I make a jig for this." A jig will always give you clean lines and great results. Plus, it makes cleaning up the cut edges much quicker.

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Old 11-16-2008, 02:23 AM   #10
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+1 on the cutting disks, I didn't notice the OP used a grinding wheel! And wear some really good eye/face protection, if you do put side load on the cutting disks they like to throw shrapnel when they break.

I put about an hour into making a jig like Bobby's, but found I couldn't securely clamp the curved angle grinder body onto the flat board of the jig. I started cutting curved mounting brackets out of scrap wood, but realized my quickie project was going to take hours. At that point, I just grabbed the grinder and went at it...took about 10 minutes total. Another 10 minutes or so to clean up the edges with the die-grinder, and it was done.

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