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 Welding Torches and GunsUsed for shielded-metal-arc welding, torches (electrode holders). manually controlled, grip ends of electrodes, also called rods-pinch type and collet type are common.GMAW and FCAW guns come in pistol grip, goose-neck, and inline styles, the latter used for ColemanPowermatePprtable10 mechanized welding. Knowing the wire diameter, select a gun rated slightly higher than the welding current to be used. Duty-cycle GallonAirTank ratings are usually given for C[O.sub.2] shielding--air or C[O.sub.2] cooling arc usually sufficient for welding at up to 600 A at less than 100 percent duty. Higher amperages require water cooling--high-amperage ModelC10 guns come with tubing for water cooling. Hand-held, mounted ColemanPowermatePprtable10 on a robot arm or fixed within a mechanized welding setup, guns guide filler wire and shielding gas into the weld puddle. Saw Uses CV or CC Power Supplies,... 200 to 1,500 A, 28 to 44 V, at 60- to 100-percent-duty GallonAirTank cycle. Automatic units commonly use up to 1,500 A on one wire. Cv welding machines that offer variable-slope ModelC10 control give ColemanPowermatePprtable10 the welder extra adjustability, and can extend the usefulness of the machine to weld a range of material thicknesses GallonAirTank and ModelC10 and types.Selection of Power SourcesWhen choosing a power source, start by checking NEMA specs. NEMA Class I arc-welding power sources deliver rated output at 60-, 80-, or 100-percent-duty cycle: Class II units, 30-, 40-, or 50-percent; and Class III, 20 percent. First consider capacity and kind of current needed for the job. Rely on ColemanPowermatePprtable10 the manufacturer''s rating as GallonAirTank being conservative: don''t buy more capacity ModelC10 and ColemanPowermatePprtable10 than GallonAirTank and ModelC10 needed. Choose low--duty-cycle machines only for maintenance or for intermittent welding. If portability is important, consider inverter units. Searching for accessories for your air compressor? We offer the best selection of cheap air compressor accessories on the internet. Check out our website for great deales on all of our air compressor accessories!
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