automatic hydraulic cylinder welding machine Welding Machine Application 1. hydraulic cylinder-tubes,piston rod with eye and end caps circumferential seam welding. 2. MIG welding type. 3. with oscillator. 4. Japan OMRON PLC and man-touch screen. 5. Machine can work continuously for 24-hour. Welding Machine Parameters Applicable cylinder diameter30mm-500mm Applicable cylinder length6000mm Rotation speed 0.2-5rpm Motor power0.75kw Air compressor≥0.6Mpa Welding power source400A 500A Working voltage220v 380vHydraulic Cylinder Automatic Welding Machine manufacturers website:http://www.haoyuwelding.com/automatic-welding-machine/hydraulic-cylinder-automatic-welding-machine/