PU Sandwich Panel Production Line For Warehouse Partition Panels

The polyurethane sandwich panel production line is an automated equipment system specialized in producing polyurethane composite panels for construction, designed specifically to meet the partition needs of modern storage facilities. This production line combines the metal panel (usually color steel plate or galvanized plate) with polyurethane foam core through continuous foaming process to form building panels with excellent thermal insulation, fire prevention and structural performance.

sandwich panel line

With the rapid development of the logistics industry and the increasing demand for modern warehousing facilities, polyurethane sandwich panels have become the preferred material for warehouse partitions due to their advantages of lightweight, high strength, thermal insulation, fire resistance, and easy installation, promoting the continuous upgrading and innovation of professional production equipment.

The main components of the polyurethane sandwich panel production line

• Open book system
  The uncoiling system is the starting point of the production line, mainly composed of the following equipment:
  Dual station unwinding machine: achieving uninterrupted production, one station can prepare the next roll of material while the other is working
  Automatic correction device: ensures precise alignment of metal coils when entering the production line
  Pre treatment cleaning equipment: Remove oil stains and impurities from metal surfaces to improve bonding quality
  Tension control system: maintain smooth transportation of the coil material to avoid deformation or wrinkling

• Forming system
  The forming system processes flat metal plates into the desired plate shape:
  Multi pass roll forming machine: gradually forming the flat plate into the desired cross-sectional shape through 12-16 sets of roll forming units
  Hydraulic shearing machine: Accurately cut the formed metal panel according to the set length
  Online detector: Real time monitoring of forming size accuracy, automatic feedback adjustment

• Foam composite system
  The core foam composite process includes:
  Two component high-pressure foaming machine: precise control of polyurethane raw material ratio and injection volume
  Temperature control unit: maintain raw materials and molds at the optimal reaction temperature
  Continuous laminating machine: Under pressure, polyurethane is fully foamed and cured between two layers of metal plates
  Maturation zone: ensure that the foam is fully cured to achieve the best performance

• Cutting and Stacking System
  After completing the post-processing of the board:
  Flying saw cutting machine: high-speed and precise cutting, with smooth and burr free cuts
  Automatic stacker crane: Automatically stack finished products according to preset programs
  Packaging system: automatic lamination or packaging to protect the surface of the board

Production process flow

• Metal plate pretreatment: uncoiling → cleaning → leveling → forming
  

• Lower plate conveying: Accurately feed the formed lower plate into the laminating machine
  

• Polyurethane foaming: raw material mixing → high-pressure injection → foaming and expansion between panels
  

• Upper panel composite: precise alignment and coverage of the upper panel → pressure composite
  

• Maturation and setting: control temperature and humidity to make foam completely solidified
  

• Fixed length cutting: precise cutting according to order requirements
  

• Automatic stacking: Classify, stack and package

The entire production process adopts PLC fully automatic control, with a production speed of up to 6-12 meters/minute. The length of the board can be customized according to demand, and the width is usually between 1000-1200mm, with a thickness range of 50-200mm.

Advantages of Storage Application of Polyurethane Sandwich Panels

• Space optimization:
  Lightweight characteristics (10-14kg/m ²) reduce structural loads and enable higher-level storage
  Diverse thickness options for space separation to meet different insulation needs

• Environmental control:
  Excellent thermal insulation performance (thermal conductivity of 0.022W/m · K) reduces temperature control energy consumption
  The airtight structure effectively prevents moisture and dust, protecting stored items

• Security performance:
  Flame retardant formula meets warehouse fire prevention requirements
  High strength core material (compressive strength ≥ 150kPa) resistant to accidental impacts such as forklifts

• Convenient construction:
  Modular design for quick installation, significantly reducing warehouse renovation cycle
  Dry operation without construction waste, does not affect warehouse operations

• Economy:
  The comprehensive cost is lower than that of traditional brick and concrete partition walls
  With a lifespan of over 25 years and extremely low maintenance costs

The modern pu sandwich panel production line integrates multiple advanced technologies:

• Intelligent control system:
  Adopting Industry 4.0 architecture to achieve remote monitoring and data analysis
  Automatically adjust process parameters to ensure stable product quality under different climatic conditions

• Energy recovery technology:
  Foam reaction heat recovery for board curing, saving more than 30% energy
  The exhaust gas treatment system achieves VOCs emission standards

• Flexible Production Design:
  The rapid mold changing system can switch between different board types within 30 minutes
  The same production line can produce products with multiple thicknesses and widths

When choosing a pu sandwich panel line, the following factors should be considered:

• Capacity matching: Select appropriate specifications based on expected order volume to avoid overinvestment
  

• Technological maturity: Prioritize selecting equipment and processes with successful cases
  

• Scalability: Reserve upgrade space to accommodate future product upgrades
  

• After sales service: Assessing the localization service capability of suppliers
  

• Energy efficiency ratio: calculating long-term operating costs rather than just focusing on initial investment

As a key equipment in the construction of modern warehousing facilities, the pu sandwich panel manufacturing line is providing more efficient and environmentally friendly space separation solutions for the global logistics industry through continuous technological innovation and process optimization, and has become an important technical support for promoting the development of intelligent warehousing.