Polyurethane Composite Sandwich Panel Machinery

The polyurethane composite sandwich panel machinery adopts continuous lamination technology, which combines metal surface materials such as color steel plates, aluminum plates or stainless steel plates with polyurethane core materials in one go to form a stable "sandwich" structure.

sandwich panel machine

Foam material is uniformly filled and cured between two layers of metal plates, while achieving high-strength bonding between the surface material and the core material. The advanced composite pu sandwich panel production line integrates processes such as material conveying, surface treatment, precise injection, high-pressure foaming, curing and shaping, and automatic cutting, forming a highly automated assembly line system.

A complete pu composite sandwich panel machinery is a highly integrated electromechanical system, mainly composed of the following core modules:

• Pre treatment system for metal surface materials
  Uncoiling and leveling unit: using hydraulic or mechanical methods to unwind and level the color steel coil, eliminating internal stress in the material
  Surface cleaning device: removes oil stains and oxides on metal surfaces through high-pressure ion air or chemical cleaning, improving bonding strength
  Film laminating machine (optional): Some high-end production lines are equipped with polymer film thermal laminating equipment to enhance the weather resistance of surface materials

• Continuous foaming molding system
  High pressure foaming machine: The core equipment uses a metering pump to accurately control the mixing ratio of isocyanates and polyols, with a mixing accuracy of ± 1.5%
  Double track laminating machine: equipped with heating pressure plates and circulating steel strips on the upper and lower sides, forming adjustable height forming channels
  Temperature control system: Accurately regulate the temperature of each section through algorithms to ensure that the polyurethane foaming reaction proceeds under optimal conditions

• Post processing and cutting system
  Maturing and shaping zone: usually 30-50 meters in length, allowing the board to have sufficient curing time
  Flying saw cutting machine: servo control, cutting accuracy ± 1mm, maximum processing speed up to 15m/min
  Automatic stacker crane: robotic arm or vacuum suction cup type, realizing automatic stacking of finished products

Polyurethane composite sandwich panels as an efficient and energy-saving building material, have been increasingly widely used in industrial plants, cold storage, clean workshops and other fields in recent years.