Plasma Cutter Torch 40A PT31 16FT High Duty Cycle for Cut 50A Works with PT31 JG-40 WSD-LG40 Cutting Torch (LGK40 CUT40). This pt31 plasma cutter torch can work with PT-31, JG-40 and WSD-LG40, is available for Plasma cutting machines such as CUT-40, CUT-40D,LGK-40, CT312,CT312D,CT416,CT416D,CT518, CT518D, Super160, Super160P etc.