PU Sandwich Panel Plant

PU sandwich panel plant is a professional production line used to produce polyurethane (PU) sandwich panels. This sandwich panel is composed of two layers of metal panels (or panels made of other materials) and polyurethane foam core materials in the middle, and is widely used in building walls, roofs, refrigerators, clean plants and other fields. Modern polyurethane sandwich panel plant integrates various technologies such as mechanical, electrical, hydraulic, and automatic control, enabling fully automated production from raw materials to finished products.

sandwich panel machine

Composition and function of pu sandwich panel plant

• Panel unwinding and pre-processing system
  Uncoiler: Automatic unfolding of metal coils (color steel plates, stainless steel plates, etc.) with automatic centering function
  Leveling machine: eliminates internal stress generated during the unwinding process of the coil, ensuring the flatness of the panel
  Cleaning device: Remove oil stains and impurities from the surface of the panel, improve bonding strength
  Glue coating machine: evenly spray adhesive on the inside of the panel

• Continuous foaming system
  Raw material storage tank: separate storage of raw materials such as polyols and isocyanates
  High pressure foaming machine: Accurately measuring and mixing two components, achieving uniform mixing through high-pressure impact mixing technology
  Temperature control system: maintain the raw material temperature within the optimal reaction range (usually 30-50 ℃)
  Foaming Platform: Provides a constant temperature environment to ensure uniform foaming of polyurethane

• composite system
  Double belt laminating machine: The upper and lower conveyor belts run synchronously to control the thickness and density of the sandwich panel
  Temperature control system: accelerates polyurethane curing through heating plates or hot air circulation
  Pressure regulating device: adjustable pressure ensures a tight fit between the panel and the core material

• Forming and cutting system
  Continuous forming machine: endowing sandwich panels with the required cross-sectional shape through multiple sets of roll forming devices
  Flying saw cutting machine: high-speed synchronous cutting, smooth and burr free cutting edge
  Length measurement system: laser ranging ensures cutting accuracy (± 1mm)

• Automated control system
  PLC control system: integrating parameter adjustment and monitoring of various processes
  Human Machine Interface (HMI): Intuitively display production data and equipment status
  Fault diagnosis system: Real time monitoring and early warning of equipment abnormalities

Technical characteristics of pu sandwich panel plant

• Advanced foaming technology
  Adopting high-pressure fluorine free foaming process, with superior environmental performance
  Self cleaning mixing head design reduces material waste
  Closed loop temperature control system, stable foaming quality

• intelligent control system
  One click storage and retrieval of production parameters
  Remote monitoring and fault diagnosis function
  Real time monitoring and optimization of energy consumption

• Efficient and energy-saving design
  Thermal energy recovery and utilization system
  Variable frequency drive reduces energy consumption
  Optimize hydraulic system to reduce energy loss

• modular structure
  Easy to transport and install
  Can expand functions according to needs
  Easy maintenance and upkeep

Factors to consider in the selection of pu sandwich panel plant

• Production demand: expected production capacity, product specification range
  

• Factory conditions: site size, height, load-bearing requirements
  

• Energy supply: electricity capacity, compressed air requirements
  

• Automation level: balance between manual operation and automation
  

• Budget scope: Initial investment and long-term operating costs
  

• Environmental requirements: exhaust gas treatment, noise control, etc

Key points for maintenance and upkeep of pu sandwich panel manufacturing plant

• Daily maintenance: clean the guide rail, check the hydraulic oil level, lubricate the moving parts
  

• Regular maintenance: replace filters, calibrate sensors, check electrical connections
  

• Foam system maintenance: Regularly clean the mixing head and check the measurement accuracy
  

• Seasonal maintenance: winter antifreeze measures, summer cooling system inspection
  

• Professional maintenance: Annual systematic testing and debugging by the manufacturer

As the core equipment for modern building material production, the technical level of pu sandwich panel plant directly affects the quality and performance of the final product. With the continuous improvement of energy-saving and environmental protection requirements in the construction industry, polyurethane sandwich panel plant is rapidly developing towards higher efficiency, intelligence, and environmental protection, providing key material manufacturing solutions for green buildings.