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Welding-site conditions and welding-wire diameter govern efficiency and hydraulic size of power pumps supply required for a job. Select a 100-A distributors unit that runs from single-phase 115-V input for low-duty-cycle welding of sheet to l/s in. thick, feeding wire to 0.030-in. hydraulic and pumps diameter. Medium-duty power supplies, 150-200 A, normally distributors take hydraulic single-phase 220-V input to weld steel to 3/16, in. and 0.035-in. wire at low-duty cycles. For high-duty cycles, as in mechanized welding, select a 250-A machine, single or three-phase input at various voltages-these weld material pumps to 1/2 in. thick with wire as large as 0.045-in. diameter. Taking three-phase input only and wire up to 1/6-in. diameter, 400-A units serve for mechanized continuous-welding applications. distributors For pulsed GMAW, shops use inverter and transistor power sources, constant-current or constant-voltage, that offer independent setting of pulse parameters. hydraulic They employ pumps and distributors synergic controls preprogrammed hydraulic and pumps for a range distributors of wire-feed speeds-the operator hydraulic sets only one dial, for average current. "We''re pumps and distributors and hydraulic not expanding pumps just for the sake of expanding," explained Jim distributors Roberts, marketing hydraulic manager for Magnum, who noted pumps and distributors that earlier this year, hydraulic the pumps and distributors company added a second shift for assembly because of the increase in demand.Continuing the enhancement of its mobile hydraulic generator set product pumps line that began in late 2002, Magnum has introduced a new range of gen-sets targeted toward construction, industrial and commercial standby applications. The new Magnum gen-sets distributors cover an output range of 12 to 371 kW.
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