Quote:
Originally Posted by ElizabethCreations
I like to do boro once in a while and it takes FOREVER to make a single bead.
I appreciate your reviews!
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A bit late to the party, but better late than never.
Your Bobcat just needs more oxygen to handle borosilicate and the
Bethlehem Alpha will likely not perform any better as they are very
similar in size/performance.
Here is a tip on oxygen concentrator use:
Do not set your concentrator to it's max 5 lpm output, reduce output
to between 3-4 LPM.
1-2 LPM under the max output increases oxygen purity which will make
the flame hotter. (this is true for ALL O2 concentrators)
Another option is to add a second oxygen concentrator.
The bottom line:
More Oxygen = ability to add more propane and remain neutral =
bigger hotter flame for harder glass. (within the limits of the torch size)
Addendum:
It appears the Alpha is pretty hungry for Oxygen.
Full Flame consumption:Oxygen: 8 psi; 27 cu. ft./hr. (765 l/hr.)
You would need 2 M15 concentrators for 100% capability.