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Old 2019-11-28, 12:23pm
Dustyballs Dustyballs is offline
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Join Date: Nov 28, 2019
Location: Mississippi
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Cool What is biggest Gtt torch with 3 5lpm concentrators

I have 3 5lpm invocare concentrators and i bought the ggt cricket. Within about a month I feel I need much larger torch I cant even make a vessel bigger than about 6" y'all and about 3" round. Looking to grow but do not want to have to change torches for a long time
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Old 2019-11-28, 1:31pm
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Three Muses Glass Three Muses Glass is offline
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Join Date: Jun 23, 2005
Location: Back in NJ
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GTT has an FAQ on their site- Flow Rates for GTT Torches- that should tell you.

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Old 2019-11-28, 2:28pm
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echeveria echeveria is offline
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Join Date: Aug 31, 2006
Location: Knoxville, TN
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Keep in mind that 3 5’s does not give you 15. It’s more like 12.
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Old 2019-11-28, 7:48pm
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Subduction Subduction is offline
Join Date: Jun 22, 2018
Location: WA
Posts: 40

I don't have experience but I'll say a Sidewinder because it works with low pressure. Oxygen purity will be best at flows less than the "label" rating of a concentrator, as stated above.

Edit: the chart from GTT is somewhat old. A sweet torch would be the Sidewinder with a Lynx center fire. But I'm thinking your oxygen supply is going to be the biggest limitation for future growth.
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Old 2019-12-05, 9:13pm
Alaska Alaska is offline
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Join Date: Dec 10, 2009
Location: Anchorage, Alaska
Posts: 1,057

Take a look at the GTT Mirage and Delta. Perhaps even bigger. Check with the folks at "" as they use bigger torches for many of their projects.

Your 3 concentrators will not run any of the larger torches. Use three 5 LPM machines just to run a Scorpion and considering adding a forth. For larger oxygen needs look at tanked or LOX. Some have built low pressure (100 PSI) oxygen systems using 6 plus conentrators with a 100 gallon holding tank using an oxygen safe compressor.
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