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Corrugated board is made from linerboard and fluted medium. Single wall board is common for light packaging, while double wall board is often selected for stronger shipping cartons. Different board thicknesses require different die pressure, blade depth and machine stability.

Slotting in box making creates the cuts between carton flaps, so corrugated board can fold into a stable box shape. Without accurate slotting, the carton may have uneven flaps, weak corners, poor closing performance or unstable stacking after packing.

The production flow of corrugated box manufacturing usually includes board preparation, feeding, slitting, creasing, slotting, printing, folding and final stacking. Each step affects carton strength, size accuracy and packing efficiency. A stable production flow helps reduce waste, improve order change speed and keep carton quality consistent.

A Slitter Scorer Machine is used to slit corrugated board into required widths and press accurate scoring lines for later folding. In corrugated production, this machine directly affects carton size accuracy, folding quality and forming stability. Poor slitting or scoring can cause rough edges, cracked fold lines, uneven flaps and weak box shape.

Flexo Folder Gluer Machines combine printing, slotting, creasing, folding and gluing in one continuous carton production process. They are mainly used for corrugated boxes that need printed information, accurate flap forming and stable glued seams.

Corrugated boxes are formed through a series of cutting, creasing, slotting, folding and shaping processes. A standard corrugated board contains linerboard and fluted medium, which gives the box cushioning strength and stacking support.

Knocked down flat box production means making corrugated boxes in a flat, folded condition before final opening, packing or assembly. This method is widely used in carton manufacturing because flat boxes save storage space, reduce transport volume and make order handling easier for packaging factories, warehouses and export suppliers.