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AHB Articles: Stainless steel tube coil

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tinnyhaha

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This is a full 15 metre coil of 1/2" stainless tube rolled to 300mm dia.

20121214_151923.jpg
 

tinnyhaha

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The coils are all of equal diameters and in fact I have surprized myself of good my quality is.

20121214_151820.jpg
 

donburke

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The coils are all of equal diameters and in fact I have surprized myself of good my quality is.

pretty much exactly what i'm after, but can the spacing between coils be reduced ?

i see you have 17 coils of 300mm diameter, with what appears to be a 1 inch gap between coils

can the 15m tube be wound the same but with say 1/2 inch gaps between coils so that the total height will be reduced to 400mm ?


if so, cost including the material ?
 

hosko11

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Tinnyhaha, What did you use for the rollers and where did you get them? Also, I assume you pushed/pulled the tube through the rollers as I don't see any sort of hand crank??
Cheers,
Hosko
 

tinnyhaha

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Thanks for the interest guys,

I simply made a push through jig using sailing block sheaves as rollers. It turned out very accurate as far as diameter (within 2mm) but compression can be controlled during the installation. I was more concerned about the tubing being ovaled in shape during the rolling process but have since learnt this is normal when rolling tube in small diameter. The secret is to cut the tube to length first so not to roll the part that will attach to a compression fitting. I've also attached a picture so as to be able to veiw my jig.

I actually started making these coils for herms set-ups after the frustration of trying to find an engineer to make one for me.

I spent days on the phone, drove all over Sydney and even had quotes of almost a $1000 (including material) to make a s/s herms coil. I even had a so-called professional from Silverwater in Sydney, destroy a full coil of tube without reimbursment.


Cheers,
Tinny

20121214_150018.jpg
 

Yob

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Hay Tinny.. Im guessing you know about the HERMIT which is quite a small little unit, folks have been well pleased with it, Ive been following it for months now but Havnt got one myself.. I made up a little copper HEX with only 3m of copper in a BigW Pot and get ~1'c per min which is almost as good as the HERMIT from what I understand.

HEX.JPG

that SS coilof yours looks quite long.. what are you going to mount it in?

:icon_cheers:

*ed @ wolfman, he says in the WIKKI that if you want one let him know, I dont know if that means he's doing a wonderful service for free or if he intends on selling them?
 

Wolfman

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Yer sent him a PM Yob.

I'll PM you about your system.
 

tinnyhaha

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So are you selling them?
Hi Wolfman,

The short answer is yes and the price is the cost of the materials+postage and a few bucks for my trouble.

The down side is that the material is very slow to arrive from the USA.



Cheers,

Tinny
 

tinnyhaha

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Hay Tinny.. Im guessing you know about the HERMIT which is quite a small little unit, folks have been well pleased with it, Ive been following it for months now but Havnt got one myself.. I made up a little copper HEX with only 3m of copper in a BigW Pot and get ~1'c per min which is almost as good as the HERMIT from what I understand.

View attachment 59383

that SS coilof yours looks quite long.. what are you going to mount it in?

:icon_cheers:

*ed @ wolfman, he says in the WIKKI that if you want one let him know, I dont know if that means he's doing a wonderful service for free or if he intends on selling them?


Hi Yob,



I'm not familliar with all the various varieties of rims and herms out there but I have been focused on a test platform that I have read about.

Apparently the design gives the brewer the ability to reproduce quality consistantly.

The coil was intended to be supported by a 90 deg. compression fitting both top and bottom.



Cheers

Tinny
 

The Gas Man

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Hi Wolfman,

The short answer is yes and the price is the cost of the materials+postage and a few bucks for my trouble.

The down side is that the material is very slow to arrive from the USA.



Cheers,

Tinny
What would the $/m work out for the coils?
 

tinnyhaha

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Make your own tube roller how to :icon_cheers:

Hi Masters,


Thanks for the article but I wish I had it about 3 week ago. It would have saved a lot of shagging about with testing and designing :icon_drunk:

Oh well it turn out to be a good excuse to consume a few extra lagers :icon_drunk:



Cheers
Tinny
 

Yob

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The coil was intended to be supported by a 90 deg. compression fitting both top and bottom.
..and you are going to mount that in you HLT? I ask only coz I was thinking that with the size that is, will you be topping up your HLT to keep it full? I seems that a good deal of it will be out of the water if you dont top it up, and if you do top it up you will require a bucketload of energy to heat/ramp etc. and ramp times might be quite slow.

The HERMIT link that I posted earlier is quite a small little device and requires only a fraction of the energy I probably use so that wepon of yours is going to dim the lights of the city...

If im off the mark and you have a different idea I apologise, it's just the way it seems from the info you have posted. I guess it depends on how big your HLT is... how big are your brews generally? what are you mounting it in?

:icon_cheers:
 

tinnyhaha

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What would the $/m work out for the coils?

The cost to land a 15mtr. coil is around $140.00 and would guess to cut the coil then roll it to your dimentions would be $30.

As far as a coil price goes "How long is a piece of string"

Sorry I can't be more help


Cheers

Tinny
 

tinnyhaha

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..and you are going to mount that in you HLT? I ask only coz I was thinking that with the size that is, will you be topping up your HLT to keep it full? I seems that a good deal of it will be out of the water if you dont top it up, and if you do top it up you will require a bucketload of energy to heat/ramp etc. and ramp times might be quite slow.

The HERMIT link that I posted earlier is quite a small little device and requires only a fraction of the energy I probably use so that wepon of yours is going to dim the lights of the city...

If im off the mark and you have a different idea I apologise, it's just the way it seems from the info you have posted. I guess it depends on how big your HLT is... how big are your brews generally? what are you mounting it in?

:icon_cheers:
I do intend to top up with hot water but the coil is compressed to 340mm aswell

HLT_1.JPG
 

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