Qhpack 3/5/7 Ply Automatic Corrugated Cardboard Production Line. Automatic Production Line: Fully automatic corrugated cardboard production line with PLC control and HMI touch screen. Steam Heating System: Equipped with steam heating for single facer and preheater units for efficient processing. Customizable Width: Production width adjustable from 1000mm to 3100mm to meet specific customer requirements. Quick Tile Roll Change: Features electric hydraulic trolley and quick change module for 10-minute tile roll replacement. High-Performance Rollers: Corrugated main rollers made of 52CrMo alloy steel with tungsten carbide coating for durability. Precision Preheating: Electric adjustment wrap angle allows preheat area control within a 360-degree range. ODM Service Available: Supports customization from samples and designs with minor customization options. Energy Efficient Drive: Independent frequency motor drive for glue machine and conveyor bridge for energy savings.