3/5/7 PlyCorrugated cardboard production line Series Corrugated Cardboard Production line Corrugated Cardboard Production Line is the professional equipment for producing corrugated cardboard.The 3ply,5ply,7ply,and multi-function corrugated cardboard production line include series formingprocesses:firstly warm-up paper, secondly corrugated core paper(surface paper)warm-up, thirdly single corrugated cardboard bonding,fourthly corrugated cardboard forming,and than the longitudinal impressing,last horizontal cut-off etc.Above processes of 3ply,5ply,7ply Corrugated Cardboard Production linerelevant equipment :Mill Roll Stand, surface paper(core-paper) pre-heater.Single facer,Conveying Span Bridge.Glue Application Machine, Double Facer,Slitter Scorer,Cut-off,Conveyer and Stacker,Heating System,Air compression system and Glue Making System,etc 3Ply ,5ply,7plyCorrugated cardboard productionmachine A. Largest effective paper width 1400-2500 mm. B. Mechanical speed 100-300 m/min. C. The maximum production speed 250 m/min. (three-layer) 200 m/min. (five-layer) D. Use of steam pressure 12 kg/cm². E. Needed steam consumption4,500 kg/hr. F. Needed total power 500 HP. G. The use of starch: corn starch H. Paper standard Paper-125g/ - 180g/.(Water percentage 8-10%), Breaking resistance index (KN./g)3.5, Ring pressure index (N.m/g)8, Core paper -112g/, Ring pressure index (N.m/g)5.5,( Water percentage 8-10%), Core paper -130g/, Ring pressure index (N.m/g)7,( Water percentage 8-10%),