本機采用船形埋弧焊，焊接時工件不動，門架介行走，門架移動采用變頻調速；橫梁配備有二組導柱各帶一套焊接機頭，用電動機驅動來調節上下位移。用首動調節裝置來調節左右位移；導弧機構對焊接進行機械式跟蹤，焊縫質量高；焊藥可自動回收，節省人力。

using cymbiform submerged arc welding; when welding, workpiece is fixed, but portal frame is, moved and the speed of moving is controlled by frequency varation; equipping aset of wedljng head at each2 groups of guiding post on the beam; using electric dynamo to drive to adjust shrting up and down; using manual adjusting device to adjust shifting left and right; processing mechanictracing the welding line with guiding arc mechanism, wich can get high quality of welding line; automatically recycling the solder, which can save the labor.