Semi-automatic bookcase envelop machine. Is refer to file box, hard book covers.the pack book hull etc.bookcase envelop machine. Specifications: Model:KL-650 Sheet thickness: 80-200g Sheet cover width:100-600mm Sheet cover length:1-4mm Production speed(count):10-40pcs/min Total power:12.5kw weight:2000kg Power supply:380V The host adoption vari-resisting to adjust soon, flying to reach the auto last paper gum,setting time arbitrarily to heat automatically,automatic control temperature etc.the forerunners electronics electric appliances component,function stability,operation celerity. Pipelining installs strong dint to absorb breeze device,can avoid paper over the gum behind bent change a type and move, make fixed position accurate,The coda wraps a side the ,with the rear using automaktic edge covering and leveling devices to better guarantee product quality. no bubble,no crimple,raise product quality availably.