Description
What is 7 Ply Corrugated Board?
7 Ply Corrugated Board consists of:
4 Flat Liner Papers
3 Corrugated Medium Papers
Structure:
Liner + Flute + Liner + Flute + Liner + Flute + Liner = 7 Ply Board
This type of board is mainly used for:
• Heavy machinery packaging
• Export packaging
• Industrial product packaging
• Automobile parts packaging
• Heavy-duty cartons
Main Machines in 7 Ply Plant
A Fully Automatic 7 Ply Plant typically includes the following machines:
• Mill Roll Stand (Hydraulic)
• Pre Heater
• Pre Conditioner
• Single Facer Machine (3 Sets)
• Glue Kitchen
• Double Backer
• Slitter Scorer
• Cut Off Machine
• Conveyor System
• Stacker
Working Process – Step by Step
• Kraft paper rolls are loaded into the Mill Roll Stand.
• Paper passes through Pre-Heater to remove moisture.
• Paper goes to Single Facer Machine to form flute.
• Fluted paper is pasted with liner using Glue Unit.
• 3 Single Face boards are combined in Double Backer to make 7 Ply Board.
• Board passes through Slitter Scorer for cutting and creasing.
• Cut Off Machine cuts the board to required sheet size.
• Stacker collects and stacks the sheets automatically
