HD620/180 bottoming machine applies high-speed rotary vacuum feeder and planetary rotation vacuum suction to simplify and quicken the path. This machine is reliable in work. And the feeding speed will not be limited by the structure, and the adjustable motor speed is easy to adjust. The machine can determine the optimum speed according to the available materials, which can save materials and ensure quality. The feeding is automatically positioning and work at the same pace with the whole machine , which is a guarantee for the quality of paper. It could paste grease paper bag or ordinary kraft paper valve paper bag of 1-4layers, and paper bags of 2-4layers with a layer of plastic film with a valve plus film. It can also paste one side opening paper bag. The machine has the function of one time valve pasting and second time pasting. The process procedures of valve port reinforcement is to dry the plastic woven belt on the reel , after correcting the sending path with special corrective instrument orientation and positioning break, the plastic woven belt is pasted to both sides of the bag bottom which is conveying at the same speed with the plastic woven belt. The process is controlled by electronic control system. When vacancies occur in the synchronous position of paper belt ; the control system will command to cut off the paper belt , and skip the process of glue painting, and the glue painting reel will not paint the glue. This machine has function of bag bottom reinforcement and reinforcement of paper with printing functionality. The machine has the advantages of advanced process flow, computer-controlled, optical testing, defective automatic removal, overlapping products outputting, electrical frequency speed adjusting, convenience in speed adjusting, high degree of automation, and take up less labor.