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Anyone know what size coils/how many would be reasonable to cool 5 BBL fermenters/brite tanks??? I've got two stainless 5 BBL brite tanks and 2 3 BBL cylindroconical fermenters that aren't jacketed. I'm going to make my own cooling coils/jackets (I've got my own lathes, mills, welders so...

I understand what it does (to an extent). . .what I would like to know is what are they made out of and/or where can you get the raw stone without any fitting already attached to it. Thanks!

Anyone know where to get 4.5 gallon plastic beer pins??? Like this, http://plastickegs.com/product_item/pin/ but individually. Thanks.

Thanks guys. . . . . .good point LuiInIdaho; I had not thought of that and probably wouldn't have though of it until someone else pointed it out and I felt like a dumy. Greatly appreciated. . .looks like I will stick with vertical.

I am getting ready to step up to all grain brewing and I'm planning my brewing system out now. I have 3 15.5 gallon sanke kegs that I plan on converting, but I was curious as to whether there was any advantage of using a vertical vs. a horizontal mash tun (or vise versa). Being new to all...

No I had not. . .buy thanks for the tip, that could save quite a bit of time. . .greatly appreciated!

Tried out the smaller knurls on the replacement rollers I made for their Barley Crusher and the little knurls didn't work. . .so I'm making a cut knurling tool to be able to cut the deep aggressive knurls in the rollers. After I get the tool made (will probably take me a month at least since...

Yes it will be adjustable and gear driven. . .spur gears don't fully bottom out when they mate with each other (at least they aren't supposed to. . .there is one that does, but I'm not using that type of spur gear). . .so the gap won't be the exact gap that you calculate, but it will be fine. ...

@RMullins. . .yes that would work, ideally I would use a reduction coupling similar to that as well, but since I'm doing this out of my pocket for them I'm not going that route. . .yet.

The guys that will be using this will be using that much and more in a single day. . .so no problem with it losing it's freshness. They are the smallest operating brewery in WA state and right now they are making do with a small 3/8" hand-held cordless drill run mill with 5" long 1.25" diameter...

I'm not sure what the goal is for the MM, but the reason I have them running at different speeds is to accomodate the the spacing between the rollers and still have the gears correctly mate with each other. The JSP MM is set for a 1.25:1 ratio. . .what I'm currently working on will have 2"...

I could see the husks getting shredded with knurled rollers, but is that something you would really need to worry about with smooth rollers. . .they should just crush the grain/crack the husks between the rollers if they are smooth wouldn't they?

I've got 2 fractional HP motors sitting in my garage which I would use if this were for me, but it's for a local brewer so they are gonna get a new motor. . .no scrap yard motors for a paying customer unless they wanna buy their own scrap yard motor, but thanks for the tip.

Looks like I'll be talking with the brewery today to check out the specifics of their system.

The theoretical and the actual are two different things though. . .the knurling rollers displace the metal, but as the metal is displaced it is squished up so that the sharp edges of the knurlers will cut little bits of metal that are very small and stay in the knurl for quite a while, even...

For those of you with plenty of experience all-grain brewing. . .what spacing do you generally run between your grain mill rollers? I see that JSP's Malt Mill advertises a spacing of 0.045", but there are adjustable mills as well. . .so there must be some need/desire for adjustability...

Thanks for the link to that motor. . . . . .Yuri's grain mill thread was pretty good; I will start a thread on mine (the mill actually won't be mine though. . .it's for some friends) once I finalize the design. I will be going for rollers ~2" in diameter.

OK. . .I should have checked that thread first, that was not the grain mill thread, that was an actual CNC mill. . . . . .but I think I found it this time; I'm starting it now. . . https://www.homebrewtalk.com/f11/diy-grain-mill-12858/ The roller diameter issue makes sense to me; I will...

Is this the thread you are referring to? https://www.homebrewtalk.com/f51/diy-ish-cnc-mini-mill-210443/ I also found a thread on roller diameter effect, but I haven't read it yet. . .will be reading it tonight. Thanks again!

Thanks for the tips guys. . .I don't spend much time on this forum so I haven't seen Yuri-Rage's mill thread, but I will look for it tonight, thanks for pointing me in that direction.