I am looking to upgrade my buzz box to a better machine. I need 80 OCV to allow use of low hyd & special rods. I have only single phase elec (a 16A industrial socket wired in - will actually supply 20A no probs). Ideally I would like to weld cast iron as a side line, old bench ends, wood stove, BUT main use is making a slew post for a Gopher mini digger. This means horizontal T butt welding 10 mm plate to 12 mm plate. Can I get away with 3.2 rods here & multi runs? Or do I need 4 mm rod capability? I can weld both sides of the 10 mm plate onto the flat 12 mm
Years ago I passed tests on T butt 10mm to 10 mm horizontal using 6013 2.5 mm rod for root & 3.25 'stringer?' weave runs (max weave 3x rod dia). Also same plate sections vertical up, 7016 2.5 capped by 7016 3.25. All done on the big evening class tech machine.
Other day I straightened & welded back a micro digger bucket mounting flange (pin came partly out I gather, causing all forces on one side!) done on the buzz box.
I only say the above to show how I would use the welder. I read on the Oxford forum that they take 20% more input current for a given rod size than an inverter would - as I have 20A max is this a problem with oil cooled, also if using the holder on the 80V terminal will the 20A input supply be enough to run a 3.2 rod? 140A Buzz box was bought 2nd hand in 1990 so may be better than today's offerings, from what I read on the welder type tests! I would be using the unit workshop based rather than on site. Is transformer oil still available as it speaks of topping up the oil cooled ones. If I went the inverter route I was looking at R Tech before I was introduced here, not Aldi or MM - again 3.2 vs 4 mm capability means a huge price jump. Is either better than other for hard facing of buckets?
Present elec supply runs the buzz box @ 140A but it is only 48 OCV
Years ago I passed tests on T butt 10mm to 10 mm horizontal using 6013 2.5 mm rod for root & 3.25 'stringer?' weave runs (max weave 3x rod dia). Also same plate sections vertical up, 7016 2.5 capped by 7016 3.25. All done on the big evening class tech machine.
Other day I straightened & welded back a micro digger bucket mounting flange (pin came partly out I gather, causing all forces on one side!) done on the buzz box.
I only say the above to show how I would use the welder. I read on the Oxford forum that they take 20% more input current for a given rod size than an inverter would - as I have 20A max is this a problem with oil cooled, also if using the holder on the 80V terminal will the 20A input supply be enough to run a 3.2 rod? 140A Buzz box was bought 2nd hand in 1990 so may be better than today's offerings, from what I read on the welder type tests! I would be using the unit workshop based rather than on site. Is transformer oil still available as it speaks of topping up the oil cooled ones. If I went the inverter route I was looking at R Tech before I was introduced here, not Aldi or MM - again 3.2 vs 4 mm capability means a huge price jump. Is either better than other for hard facing of buckets?
Present elec supply runs the buzz box @ 140A but it is only 48 OCV