7 Ply Corrugated Cardboard Production Line
Product Description
The 7 Ply Corrugated Cardboard Production Line (Triple Wall Line) is a fully automatic high-performance system designed to manufacture triple-wall (seven-ply) corrugated board. Compared with 3-ply and 5-ply lines, this production line features a more advanced structure, higher automation level, and greater capacity to handle heavy paperboard. It is the ideal choice for cardboard plants and carton factories targeting the heavy-duty packaging and export markets, offering a cost-effective and eco-friendly alternative to wooden crates.
Features & Advantages
Fully Automatic Control: Equipped with PLC and touchscreen system, ensuring synchronized operation, easy control, and minimal manual intervention.
Heavy-Duty Design: Engineered to process heavy basis weight paper and withstand high pressure, ensuring board strength and flatness.
Modular Configuration: Includes mill roll stands, preheaters, cassette single facers, glue unit, double facer, bridge conveyor, heating section, cooling section, slitter scorer, NC cut-off, and stacker.
Energy Saving: High-efficiency steam heating and waste heat recovery system reduce energy consumption.
Stable & Reliable Output: High precision in conveying, laminating, cutting, and stacking, ensuring consistent quality in mass production.
Optional Smart Inspection: Online monitoring system to check thickness, bonding strength, and board quality in real time.
Technical Parameters
Working Width: 1800mm, 2000mm, 2200mm, 2500mm, 2800mm
Design Speed:
Medium speed: 100–150 m/min
High speed: 180–220 m/min
Flute Combinations: AAA, ABC, BBC (customizable)
Paper GSM Range: Liner 200–300 g/m²; Medium 150–200 g/m²
Steam Pressure: 0.8–1.3 MPa
Installed Power: 450–600 kW (depending on configuration)
Line Length: 70–120 meters (depending on speed and layout)
Operation Mode: Fully automatic
Main Configuration:
Cardboard Plants: Mass production of triple-wall corrugated board for downstream packaging industries.
Carton Factories: Direct production of heavy-duty cartons for transport and export.
Typical Applications:
Heavy machinery and industrial equipment packaging
Automotive parts and large motor transport packaging
Chemical and hazardous goods packaging
Export packaging for long-distance sea and rail transport
Wooden crate replacement (eco-friendly, cost-effective, recyclable)
