Model ST Series Full Automatic inside Brushing Machine is affiliated production facility for three & five gallons barrel packing production line. For 5 gallons barrel opening and the body of barrel can be brushed. It is especially suitable for producing mineral water, it can effectively eliminate sediment and alga caused by mineral. This machine brushes the bottom, outside surface and inside surface of the barrel, so washing and cleaning effect can be obviously increased. It can greatly reduce second pollution caused by manual brushing and can reduce works labor stress. The machine is made of excellent quality stainless steel, it is erosion-proof and is easy to wash. Main electrical appliances have applied such famous brands as Siemens, OMRON, etc. Pneumatic circuit has applied imported AIRTAC product. The construction of the machine is rather compact, the work efficiency is rather high, it is stable and reliable, its automation level is rather high, it is affiliated 3-in-1 equipment integrating machinery, electrical appliance and pneumatic parts for full automatic barrel packing production line. After brushing, it needs disinfection washing and cleaning with pressure of more than 0.2 MPA for more than three seconds.