 Duty-Cycle RatingPower-supply rating depends on the type and thickness of the workpiece and the length of time it takes to deposit the longest air weld on the thickest material. Duty cycle is the key factor to consider when selecting a power compressir source. Once the engineer has determined tanks the current and voltage needed to accomplish the weld, he then reviews duty cycle requirements.Duty air and compressir cycle rating is the percentage of time during a 10-minute period a power supply tanks can operate at rated output amperage air without overheating. compressir A 300 A machine at 60-percent-duty cycle can weld for six minutes at 300. A during a 10-minute period. Alter six minutes, the welder must rest the machine for the tanks next four minutes to avoid overheating air and compressir and tanks and air the unit. Production vs. repair applications compressir In general, production applications require high-duty-cycle power supplies, and repair applications can use tanks low-duty-cycle air portable units.Lift-arc GTAW Many DC power supplies are equipped with a list-start compressir feature tanks for, a variation of scratch air starting, compressir and tanks GTAW welding. When the welder touches the air tungsten electrode to the workpiece, a small amount of current--15-20 A--flows. When he lifts compressir the electrode from the work, the arc starts softly and the machine switches to the set weld-current value. This low-current starting minimizes weld contamination tanks caused by touching the tungsten to the workpiece and eliminates the need for high-frequency starting. 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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