Circumferential seam welding machine 
 This equipment is applicable to all kinds of circumferential seam of the sheet metal material docking, can be applied to specific workpiece, such as: water heater, cylinder, acetylene tanks, liquefied gas cylinders, etc.. 

 Main features: 
 A workpiece rotation step electric drive, the welding speed stepless adjustable, reliable and easy to adjust, adjustment range, high precision, stable and reliable operation. 
 2 CNC control operation of the machine and improve the efficiency and reliability of the machine. 
 3 shield device, welding anomalies splash, welding slag does not spread to the shield, where it will damage the equipment. And the welding process can be very safe, always observe the welding arc conditions. 
 4 welding process is stable and continuous, forming uniform, beautiful, deep penetration, weld width to meet the requirements to facilitate clamping.