• The R3R-400 and R3R-500 produce quality, low spatter, smooth arcs without pop-outs. Line voltage fluctuations of up to ±10% are handled by the R3R compensation function to keep the output constant.
• Easy to operate. Calibrated current control knob makes procedure setting simple and easy. Polarity switch, voltmeter and ammeter are standard.
• Smooth arc makes it easy to weld with mild steel, low hydrogen, stainless steel and hardfacing electrodes.
• Stackable case design with built-in lift hook allows for easy storage and handling. Machines can be safely stacked three high to conserve floor space.
• Submersion dipped transformer assembly for added corrosion and moisture protection.
• Totally enclosed fan motor is permanently lubricated.
• Arc gouging is possible with the R3R-400 with up to 5/16" (7.9mm) diameter carbon electrode and R3R-500 with up to 3/8" (9.5mm) diameter carbon electrode.
• Both the R3R-400 and R3R-500 can be used for limited DC TIG welding – simply add TIG accessories and shielding gas.
• Manufactured under a quality system certified to ISO 9001 requirements and ISO 14001 environmental standards.
• Three-year warranty on parts and labor.
• Seven-year warranty on the power rectifier.