Metal Sandwich Panel Production Line

The metal sandwich panel production line is an automated system used for producing composite building panels. The core product is a sandwich structure panel with metal panels (galvanized sheet, color steel plate, etc.) as the surface layer and polyurethane (PU), rock wool (RW) as the core material.

sandwich panel line

Metal sandwich panels are widely used in industrial plants, logistics and warehousing, public buildings and other fields, with characteristics such as lightweight, high strength, fire resistance and thermal insulation.

Core process flow

1. Raw material preparation
   Metal panel: Made of aluminum zinc plated or color coated sheet, usually 0.3-2.0mm thick, unfolded and leveled by an unwinding machine.
   Core materials: polyurethane and rock wool can be selected as needed.

2. Forming and Composite
   Panel pressing: Metal panels are pressed into wavy or flat profiles using a CNC roller press to enhance structural strength.
   Core material infusion/bonding:
   Polyurethane sandwich panel: Using continuous foaming technology, the mixed polyurethane raw materials are poured into the bottom panel and cured at high temperature to form an insulation layer.
   Rock wool sandwich panel: The prefabricated rock wool panel is bonded to the metal panel through adhesive, and then pressed and shaped.

3. Cutting and splicing
   Fixed length cutting: Hydraulic shearing machine or laser cutting machine cuts according to the required size, with an accuracy of ± 0.5mm.
   Modular splicing: adopting hidden locking edge or buckle design to achieve seamless docking.

4. Surface treatment
   Coating process: can be selected from clean coating or fireproof coating.

The metal sandwich panel production line is rapidly developing towards high-end, intelligent, and green direction, and technological innovation and policy driven will promote the increase of industry concentration. Enterprises need to focus on process upgrades under the goals of flexible manufacturing and carbon neutrality.