The auto envelop sealing machine HP-250 is a newly-developed product on the basis of the imported technologies and our own accumulated experiences from manufacturing envelop-sealing machines. It is a new generation red pack and envelop machine, integrated the functions like auto indentation, fold, pre-coater, envelop tip sealing, auto paste tape, auto heat wind drying and auto counter. It is specifically applied to processing the small-sized red packs and Chinese-style envelops. Compared with other machines of its kind, it is characterized by good construction, higher speed and more stable performance.