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 Remote control of current and voltage is a plus if the welding operator is located away from the power source.Robotic and automatic applications generally require high-duty-cycle power supplies, and controls and connections for interfacing to the robot or automatic feature.Supervisory control of the process will prevent the welder from changing the welding procedures. Here, select a power supply airgank or controller that enables the supervisor to program the procedures, then lock them into the control memory, Some power supplies or controllers offer the welder limited control of the process.Input power to power supplies can bc airgank single and/or three phase, with voltage from 115 to 575 V and input frequencies of 50, 60, or 50/60 Hz. Note that many inverter power supplies are designed airgank to operate on both single- and three-phase input, and have automatic input-voltage selection and linking. 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, airgank the latter used for mechanized welding. Knowing the wire diameter, select a gun rated slightly higher than the welding current to be used. Duty-cycle 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 airgank guns come with tubing for water cooling. Hand-held, mounted on a robot arm or fixed within a mechanized welding setup, guns guide filler wire and shielding gas into the weld puddle. GTAW torches come air-cooled and water-cooled. Their heads align in-line with the body or at 90, 120, or 135 degrees to it. Nozzles, specified by inside diameters, run 1/4 to 5/8 in. Vendors offer special designs: longer to give improved accessibility to the weld joint, or wider to extend airgank shielding airgank gas coverage.Saw guns come in three-types-side, concentric, and deep-groove flux delivery.In oxyfuel welding airgank (ofw), heat comes from burning gases, rather than arcs, Torches hold separate airgank tubes for fuel gas and oxygen, blended in a mixer assembly. A torch assembly comprises a handle (aluminum, stainless steel, or brass); a mixing chamber; and a brass welding tip or cutting head. Light-duty torches weld sheer metal to 3/16, in. thick; medium, to 1/2 in.; heavy, 1/2 in. and up. 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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