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Author Topic: Micro blow torch  (Read 2491 times)

Klunk

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Micro blow torch
« on: September 08, 2016, 11:46:42 pm »

I'm needing to do some brazing on stanchions  etc.
I have the normal massive blow torch but am looking for recommendations for a small torch.
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derekwarner

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Re: Micro blow torch
« Reply #1 on: September 09, 2016, 01:01:24 am »

A few choices Klunk.......depending on the size of the stanchions.....

The pencil torch was about $12.00, the larger but still hand held approx. $18.00...both refillable.....both adjustable flame,  both rated to 2000 [F] degrees flame temperature. The largest canister mounted torch is only used for preheat soaking if silver soldering

Using heat sinking including wet kitchen paper towels is a great way of soldering.....I have even immersed a small copper tube component in a 4" vice & then placed the vice in 2" of water as a heat sink.....

The possibilities' are endless  O0......Bakers soldering flux is also a good standby  :-))... Derek
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Klunk

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Re: Micro blow torch
« Reply #2 on: September 09, 2016, 01:41:49 am »

I'm looking for a pencil torch one. I have most of the others.  Heatsinking is the easy part. I've heard night mares about pencil ones. I have one at present but it doesn't hold gas! Is there a decent brand I could buy as all the ones I see are cheap and nasty and run off lighter gas.
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verithingeoff

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Re: Micro blow torch
« Reply #3 on: September 09, 2016, 07:01:11 am »

I'm well into model steam engines and use a pencil torch a lot. I use this one http://www.ebay.co.uk/itm/Roburn-Butane-Micro-Blow-Torch-MT-770-MT-790-/152026003616. I can anneal pipe upto about 3/16" put all the connector ends on and even solder a small boiler endcap back on. Highly recommended. I use a 220gramme butane refill, a job lot of 10 for $7 at Mitre 10 a couple of years ago!
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J.beazley

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Re: Micro blow torch
« Reply #4 on: September 09, 2016, 07:29:13 am »

I own a Dremel one it's fantastic if a little expensive at 30-40 but the heat is adjustable and you get a few attachements to aim with most things model related soldering is easy and brazing brass together has never been so easy just don't forget to get decent solder and flux
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timgarrod

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Re: Micro blow torch
« Reply #5 on: September 09, 2016, 10:52:24 am »

I brought a Pencil torch last year and lasted about 10min  >>:-( .

went to the town and brought one like this and find it brillant http://www.ebay.co.uk/itm/like/262417284047?lpid=122&chn=ps&googleloc=1006674&poi=&campaignid=620865095&device=c&adgroupid=27378760866&rlsatarget=pla-181484342466&adtype=pla&crdt=0
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grendel

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Re: Micro blow torch
« Reply #6 on: September 09, 2016, 12:27:56 pm »

I have the camping gas one, as far as I can tell its still working on its original cylinder, but the cylinders are tricky to get nowadays
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grendel

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Mark T

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Re: Micro blow torch
« Reply #8 on: September 09, 2016, 05:37:51 pm »

This is the one I use and its great.  It has a micro blow torch, soldering tip and hot air tip for heat sink wrapping.  I swear by mine and I've never had a moments trouble with it either. 


http://www.maplin.co.uk/p/pro-iroda-solderpro-70w-gas-soldering-iron-kit-n13ar


As for the cheap pen type one's - well I threw mine away when the handle caught fire only on the second time that I had used it  <*<

ballastanksian

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Re: Micro blow torch
« Reply #9 on: September 11, 2016, 06:10:01 pm »

I found the cheap pen like ones do not hold a second fill of gas. Its something to do with the cheap nasty valve so don't go for these.
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