The machine is altered to be up cover hand-send machine on the basis of JBT50/4D.Its advancedness can match with international similar machine.The machine has the installation of frequency conversion timing,Leanly sticking worm gear,preesing creasing gear,strongly inhaling paper bits,automatically withdraw books.The machine has good performance,simple adjustment,high-speed binding,high accuracy rate,steady and convenient operation,low fault rate and so on.The machine can be used in wired glue packing and unwired glue packing.It is the ideal equipment to bind books for all kinds of printing factory and book binding factory.Technical Data