It is suitable for the solid object with regular form. Such as biscuit, bread, sweet, everyday thing and and industrial part and so on. The bulk cargos is put in a box and form a regular object, then to be packed. Structure features: Touching controller with person-machine interface, parameter enacted quickly, high speed and high efficiency. Adopting the tracing technology through photoelectricity, with digital input and sealing and cutting position nicely. Self diagnosis failure function,clear failure display. Constant-temperature adjusting, brainpower controlling and being suitable for all kinds of packaging materials. Controlled by double frequency conversion, the bag length can be cut with the enacting To finish by one step, saving time and film. Stopping the machine in selected position, no sticking to the knife and no waste packaging film. DXDZ-250D can fix gas flusing equipment(optional). DXDZ-250B