Plastic Conicals

[fitnessfan]

In aquaculture food grade fibreglass resins are available so I don't see why not. I personally would stick with plastic though.

 

[Spoonta]

you can get a food grade gel coat goes ont to the mold before the fiber glass so was hopping that would be ok thay use it when making some wine vats

 

[Gout]

i assume the plastic would be better in the case of knocks and bumps - and much lighter.

maybe better to work with also (when attatching taps etc)... and cheaper?

I have never worked on F.glass so i could be wrong on all the above

 

[Spoonta]

I am going to give it a go as I work in the frp industiry it will not cost me much to make a mould and product if it works great if it dont oh well I have lost a bit of time and mybe $50 bucks so we are not talking sheep stashions are we

 

[pbrosnan]

Hi all,

Long time reader, first time poster... Read this thread awhile back and couldn't resist giving it a go.

View attachment 30768

This is one of their 40lt tanks with a 255mm screw in lid. The fittings are 1 1/4" reducing to a 3/4" ball valve (actual diameter of internal flow of the ball valve is around 12mm), all 316 S/S. Hose tails to come cos' I ordered the wrong size by mistake :blink: Slowly putting together bits and pieces (uni and work taking up a lot of time), but should be good to go into a 144lt bar fridge once I'm finished. Let me know what you guys think

Cheers.

Hi Leigh,

That's a nice simple, clean looking unit. How did it go fitting in the fridge?

cheers

Patrick.

 

[rotamoulding]

Hello, Troy from Rota moulding here,
We are going ahead with a 35lt Cone bottom tank mould
it will be around 700 - 800mm high and 300mm in diameter

the lid idea we have is a screwed with oring 170mm opening to allow you to get in and clean it
How much pressure is the tank under in the process?

2 mount bolts down each side
And have calibration markings
Cost will be around the $150 mark, I hope
Regards
Troy

 

[Kleiny]

Post some pics Troy im sure there will be plenty of interest on here.

 

[yardy]

Hello, Troy from Rota moulding here,
We are going ahead with a 35lt Cone bottom tank mould
it will be around 700 - 800mm high and 300mm in diameter

the lid idea we have is a screwed with oring 170mm opening to allow you to get in and clean it
How much pressure is the tank under in the process?

2 mount bolts down each side
And have calibration markings
Cost will be around the $150 mark, I hope
Regards
Troy

Gday Troy,

+1 on the pics and any idea of approx postage costs to the east coast ?

Cheers

Dave

 

[katzke]

How much pressure is the tank under in the process?

Not supposed to be any pressure. The vessel is vented to let the CO2 escape.

Not sure how everyone feels about the bolts. Most that I have seen just set in a ring base, the ring being just smaller then the tank. US Plastics has a line that is popular over here. I may still have the link if you need it just PM me.

 

[mxd]

sounds good, be watching this one.

 

[winkle]

I'm interested unless postage is a killer

 

[komodo]

Katzke dont some people with conicals carbonate in them? if so I would have though 200kpa / 30 PSI would be enough with a safety?

 

[pbrosnan]

Yes sounds good Troy, what's the ETA?

 

[benno1973]

Katzke dont some people with conicals carbonate in them? if so I would have though 200kpa / 30 PSI would be enough with a safety?

I'd assume that if you're carbonating within a conical, you'd want to be serving from the same conical which would mean disconnects and diptubes being incorporated into the design? Which would increase the overall cost?

 

[Hutch]

How much pressure is the tank under in the process?

Sounds great Troy.
Although fermentation is generally not done under presure, some may want to force-carb in the conical, and others may wish to force filter. Filtering typically is done under relatively low pressure (20-40kPa), however carbing requires 100-150kPa at serving temps (higher for rapid carbing. I don't think that this would be feasibly for a plastic vessel, however the 20-40kPA would certainly be a requirement for many brewers filtering.

Very keen to get one of these. Keep us posted.
Hutch.

 

[pbrosnan]

Sounds great Troy.
Although fermentation is generally not done under presure, some may want to force-carb in the conical, and others may wish to force filter. Filtering typically is done under relatively low pressure (20-40kPa), however carbing requires 100-150kPa at serving temps (higher for rapid carbing. I don't think that this would be feasibly for a plastic vessel, however the 20-40kPA would certainly be a requirement for many brewers filtering.

Very keen to get one of these. Keep us posted.
Hutch.

Does anyone actually do this, force carb in the fermenter? I do it in the keg. If you're bottling then bottle condition will be the rule.

 

[Hutch]

Does anyone actually do this, force carb in the fermenter? I do it in the keg. If you're bottling then bottle condition will be the rule.

I agree - most of us don't really have the means to carb in our cheap plastic fermenters, however maybe if it were possible to do it without risking damage to the vessel, then some would want to go this way. Can't see why this would be preferable to doing it in the keg, and avoiding excessive foaming when transferring carbed beer.

Then again, I presume that commercial brewers do it this way.

 

[notung]

Looking forward to the next update Troy.

 

[rotamoulding]

At Best the tank will hold 5 psi, I am thinking

 

[Vlad the Pale Aler]

Do they come with any fittings, like a dump valve and racking arm?

 

[OzMick]

Then again, I presume that commercial brewers do it this way.

You'll find most do it in a similar manner to this: http://www.patentstorm.us/patents/5842600/claims.html

Inline injection of CO2, but probably outside the realms of reality on a small scale...

 

[wakkatoo]

subscribed

Would definately be interested in one of these Troy. Was thinking the other day I needed to upgrade my fermenters...

 

[pbrosnan]

Do they come with any fittings, like a dump valve and racking arm?

It's only $150 bucks remember. But it would be good to get an idea of what sort of fitting it would receive.

 

[Hutch]

Any update on this Mr Cone Bottom?

 

[Thirsty Boy]

cone angle?? needs to be 30 degrees (from vertical) for the yeast to slip down it properly - less sorta works but it "should" be 30 degrees.

 

[rotamoulding]

Mold is made and the first one was made today

There will 2 sizes , this one that is around 15lt 500mm heigh x 300mm in diam
and a 35lt version that is 800mm heigh and same diam, the cone section will remain the same just the middle gets longer
we could make another longer section if people wish

the pointy bit on the cone allows us to tap a thread into it of what size people want, this has a 25mm thread in it now
no idea of price as yet but it will be around $100- $150 for the tanks I guess, it has the threaded inserts in the side for bolts and we intend to make a stand
more pics and info next week

Regards Troy

 

[praxis178]

Mold is made and the first one was made today

There will 2 sizes , this one that is around 15lt 500mm heigh x 300mm in diam
and a 35lt version that is 800mm heigh and same diam, the cone section will remain the same just the middle gets longer
we could make another longer section if people wish

the pointy bit on the cone allows us to tap a thread into it of what size people want, this has a 25mm thread in it now
no idea of price as yet but it will be around $100- $150 for the tanks I guess, it has the threaded inserts in the side for bolts and we intend to make a stand
more pics and info next week

Regards Troy

Cool, I'd be interested in something in the 50-60L range. 25mm thread should be ok, common and lots of matching fittings in SS.

 

[gava]

nice! If you want anyone to give it a test i'll put my hand up..

 

[gava]

Any movment on theses?

 

[pbrosnan]

Just tried to use their feedback form but on submit it required me to enter a username and password?? Anyway the gist of it was:

Hi there,

Been seeing some posts from a Mr Cone Bottom (aka Troy) on AHB. Just wondered if you have an update on the pricing and ETA of the plastic conicals?

Hope someone sees this.