the main features include: intermittent paper walking, no matter the size of the plate, no need to replace the roller;floating type automatic tensioning feeding device to ensure the same tightness of the paper;heavy offset printing and uniform ink system, effectively prevent the generation of ink and ghost phenomenon;shaftless drive servo control system, so that the machine automatically adjust the roller speed when printing different printing products;printing unit clutch device, increase the service life of the machine;automatic ink feeding, according to the printing material and running speed automatic distribution of ink.