This machine is a main device of electric resistance welding three-piece can making line, automatically feeding, flexing, can body rounding, direct sealing and welding, inner painting of welding seam, and drying. Technical parameters: 1) Thickness of tinplate: 0.18 - 0.25 2) Diameter of can body: Φ25 - Φ105 3) Height of can body: 80 - 240 4) Diameter of copper wire: Φ1.3 - Φ1.6 5) Seam lapping: 0.4 - 0.8 6) Max. speed of wire welding: 25m/min 7) Water refrigeration: 25L/min, 0.3Pa, ≤20 degree centigrade 8) Capacity: 160pcs/min 9) Power: 380V 50Hz/20KVA 10) Dimensions: 3,400 x 1,830 x 1,810mm 11) Net weight: 3MT