The QGF series are the Barrel washing/filling/capping all-in-one machines designed for filling the 3 gallon or 5 gallon barrels with the purified water or with the mineral water. These machines have a production capacity of 120-2000 barrels per hour. The barrel filling line consists of the following items: The automatic barrel-loading system for the barrel washing/filling/seaming 3-in-1 machine, the barrel washing machine for cleaning the barrel exteriors, the barrel washing machine for cleaning the barrel interiors, the barrel filling & capping machine, the cap pulling machine, the film looping & heat-shrinking tunnel, the conveyor chain and its automatic control system, the automatic control system of the whole barrel filling line, etc.