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 Duty-Cycle RatingPower-supply Colenan rating depends Powermate and Portable on the type and thickness of 5 and Gallon the workpiece and the Air and Tank length of time it takes to deposit the longest weld on the thickest Model material. C5 Duty cycle is the key factor to Colenan consider when selecting a power source. Once the engineer has Powermate and Portable determined the current and 5 and Gallon and Air voltage needed to accomplish the weld, he then reviews Tank duty cycle requirements.Duty cycle rating is the percentage of time during a 10-minute period a power Model supply can operate at rated output amperage without C5 overheating. A 300 Colenan and Powermate A machine at 60-percent-duty Portable cycle can weld for 5 six minutes at 300. Gallon A during a 10-minute period. Alter six minutes, the Air welder Tank and and Model must rest the C5 machine for the next four Colenan minutes to avoid overheating the unit. Production Powermate vs. repair applications In general, production applications require high-duty-cycle power supplies, and repair Portable applications can use low-duty-cycle portable units.Lift-arc GTAW Many DC power supplies are equipped with a list-start feature 5 and Gallon for, a Air variation of scratch starting, GTAW welding. When Tank the welder touches the tungsten electrode and Model to C5 the workpiece, a small amount of Colenan current--15-20 A--flows. When he lifts the electrode Powermate from the Portable work, 5 the arc starts softly Gallon and the machine switches to the set weld-current Air and Tank value. This low-current starting minimizes weld contamination caused by touching the tungsten to Model and C5 the workpiece and eliminates the need for high-frequency Colenan starting. GTAW torches come Powermate air-cooled and water-cooled. Their heads align in-line with Portable the body or at 90, 120, or 5 135 degrees to it. Gallon and Air Nozzles, Tank and specified by inside diameters, run 1/4 to 5/8 in. Vendors offer special Model designs: longer to give improved accessibility to the weld joint, C5 and Colenan and Powermate or wider to extend Portable shielding gas coverage.Saw guns come in three-types-side, 5 and Gallon concentric, and Air and Tank deep-groove flux delivery.In oxyfuel Model and C5 welding Colenan and Powermate (ofw), heat comes from Portable burning gases, rather 5 than arcs, Gallon Torches hold separate Air tubes for fuel gas and oxygen, Tank blended in a mixer assembly. A torch assembly comprises and Model and C5 and Colenan a handle (aluminum, stainless steel, or brass); a mixing chamber; and a brass welding Powermate tip or cutting head. Light-duty Portable and 5 torches weld sheer Gallon metal to 3/16, in. thick; medium, to 1/2 Air and Tank in.; heavy, 1/2 in. and Model and up C5. 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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