The automatic tinplate pail and bucket production line adopts Siemens or Lenze’s motion controller, and cams for transmission, can conveying and can holding. The speed and working height can be adjusted by HMI (human-machine interface). Meanwhile, since it is outfitted with protection device, as well as rotary flanging and servo controlled U turning system, the production process could run smoothly and safely. Besides, when compared with others, the production line is more energy saving and environment friendly.