Roof PU Sandwich Panel Machine

The roof pu sandwich panel machine is a highly automated industrial equipment system specifically designed for producing polyurethane sandwich panels for construction. The sandwich panel is composed of two layers of metal plates (usually color steel plate or aluminum plate) and polyurethane foam core material in the middle, which has excellent thermal insulation performance, light weight, high strength, waterproof and anti-corrosion properties.

sandwich panel machine

The continuous polyurethane sandwich panel production line mainly consists of the following major systems:

• Metal plate unwinding system
  

• Metal sheet forming system
  

• Polyurethane foaming system
  

• Composite compression molding system
  

• Automatic cutting system
  

• Finished product stacking system
  

• Automated control system

Detailed explanation of core equipment

• Metal plate pretreatment equipment
  Pre treatment of metal plates is an important step in the production line, including:
  Uncoiler: Automatically unfolds metal coil, capable of processing coil weights up to 10-15 tons
  Leveling machine: eliminates the curling stress of metal plates and ensures the flatness of the plates
  Cleaning equipment: Remove oil stains and impurities from the surface of metal plates
  Drying system: Ensure that the metal plate is completely dry

• Metal sheet forming equipment
  The forming machine is one of the core equipment of the production line, usually using continuous roll forming process:
  Multi pass roll forming ensures precise molding
  The molding speed can reach 10-20 meters per minute
  Can produce panels with various waveforms and sizes
  Automatic lubrication system reduces friction loss

• Polyurethane foaming system
  The polyurethane foam system is the technical core of the production line:
  High pressure foaming machine (working pressure usually 150-200 bar)
  Accurate measurement system (measurement accuracy up to ± 1%)
  Temperature control system (maintaining raw materials at 20-25 ℃)
  Mixing head (self-cleaning design, high mixing efficiency)
  Raw material storage tanks and conveying systems

• Composite compression molding system
  The composite system completes the combination of metal panels and polyurethane core materials:
  Double belt continuous press (pressure adjustable, usually 0.1-0.3MPa)
  Heating system (promotes polyurethane curing)
  Cooling system (ensuring product shaping)
  Thickness control system (accuracy ± 0.5mm)

• Cutting and Stacking System
  Automatic length measurement and cutting system (accuracy ± 1mm)
  Multiple cutting methods are available (sawing, cutting, etc.)
  Automatic stacker crane (programmable stacking mode)
  Finished product conveying system

Key points for equipment selection

The following factors should be considered when choosing a pu sandwich panel line:

• Production demand
  Expected production capacity
  Product specification range
  Raw material type

• Equipment performance
  degree of automation
  Progressiveness of control system
  Equipment stability

• Energy efficiency and environmental protection
  energy consumption indicator
  Exhaust gas treatment system
  noise control

• After sales service
  Supplier Technical Support
  spare parts supply
  Operation Training

Maintenance and upkeep suggestions

To ensure long-term stable operation of the equipment, it is recommended to:

• Regularly lubricate all moving parts
  

• Keep the foaming system clean to prevent blockage
  

• Regularly calibrate the measurement and control system
  

• Timely replace worn forming rollers
  

• Establish a comprehensive equipment operation file
  

• Train professional operators and maintenance personnel

Continuous PU sandwich panel production machines represent the high-tech level of building panel production. With the increasing demand for building energy efficiency, such equipment will play a more important role in the future process of building industrialization. Choosing appropriate equipment and maintaining it correctly can ensure the long-term stable production of high-quality sandwich panel products for enterprises.