Portable Spot Welding Machine for Welding and Repairing DESCRIPTION 1. Medium Frequency Power System 2. Convenient, portable 3. High efficiency 4. Flexible operation 5. High magnetic permeability 6. Low iron loss. SPECIFICATION ITEM / MODEL WL-40C Load Occupation Rate 50%(KVA) 40 Secondary Voltage(V) 4.25 20m of Cable Sectional Area 12 Fusion Current(A) 60 Arm Space(mm) 110-605 Minimum Arm length(mm) 160 Electrode Tip Welding Stroke(mm) 15-35 Maximum Cylinder Stroke(mm) 50