Qh-Pack 3/5/7 Ply Layers Corrugated Cardboard Production Line Carton Box Making Machine. Automatic Operation: Fully automatic corrugated cardboard production line for efficient carton box manufacturing. Steam Heating System: Utilizes steam heating for single facer and preheater units to ensure consistent quality. Wide Width Range: Production width adjustable from 1000mm to 3100mm to accommodate various carton sizes. Customization Options: Supports customization from samples, designs, and minor customization requests. PLC Control System: Equipped with PLC automatic control and HMI touch screen for precise operation. Quick Tile Roll Change: Features electric hydraulic trolley and quick change modules for efficient maintenance. High-Quality Materials: Main rollers made of 52CrMo alloy steel with tungsten carbide coating for durability. New Condition: Machine is brand new with modern technology and components.