Automatic sub-body electric chassis can be installed on the electrical control box to further reduce welding head bearing,it is specifically developed for light submerged arc welding car. The whole process needs no one to operate.It can feed in material on time. The entire body is made of alloy plate which has light weight and high hardness.It overcomes the problems such as small size and small load-bearing force of the submerged arc welding car.The car can be equipped with this recovery system to make recycling and reduce the artificial labor.It can save time and improve efficiency. Import fan has super suction. The effective recovery rate is of 98% or more.Dust and flux can be automatically separated. The filter bag can collect dust and achieve clean and green effects.Through the visual window you can observe flux application. The feeding statement can add flux at any time to meet the welding needs.You can choose the optional heat insulation function; it can keep the constant temperature of 125ºC which can prevent flux cooling water vapor and ensure the welding quality.