ESAB Heliarc HW-13 (Series 3) 500-Ampere Machine-Welding Torch is a heavy-duty torch suitable for both HELIARC and Sigma welding. It features a maximum current capacity of 500 amperes and can accommodate electrodes from .040-in. to 1/4-in. in diameter. The torch has a smooth, straight barrel section that enables easy mounting for mechanized welding. It also has ceramic cups and metal nozzles for effective argon protection. Additionally, the HW-13 has internal water flow passages for cooling the torch body, water jacket, and power cable.