PU Rigid Foam Sandwich Panel Machine

The pu rigid foam sandwich panel machine is a professional equipment used to produce thermal insulation boards for buildings. It can combine two layers of metal panels (usually color steel plate or stainless steel plate) with the middle polyurethane rigid foam core through a continuous foaming process. This automated polyurethane rigid sandwich panel production line integrates complete processes such as material conveying, foam molding, continuous pressing, fixed length cutting, and finished product stacking.

sandwich panel machine

Main components of pu rigid foam sandwich panel machine

• Panel unwinding system
  Dual station unwinding machine: achieving uninterrupted roll changing production
  Automatic correction device: ensuring the straight line accuracy of panel conveying
  Panel pre-processing unit: including cleaning, preheating and other processes

• Raw material supply system
  Polyurethane raw material storage tank (isocyanate and polyol)
  High pressure metering pump set: precise control of ratio and flow rate
  Raw material temperature control system: maintain optimal reaction temperature

• Mixing and foaming system
  High pressure mixing head: achieving uniform mixing of raw materials
  Foaming platform: control the expansion of foam between panels
  Temperature control system: optimizing the foaming environment temperature

• Continuous lamination system
  Double belt press: synchronous operation of upper and lower steel belts
  Pressure regulating device: adjustable from 0.2-0.5MPa
  Temperature control system: accelerate foam curing

• Fixed length cutting system
  Servo driven cross cutting saw: accuracy up to ± 1mm
  Automatic length measurement device: infrared or encoder control
  Waste edge recycling device: Processing waste generated from cutting

• Finished product processing system
  Automatic stacker crane: automatically stack according to the set quantity
  Conveyor roller: a conveyor system that connects various processes
  Packaging workstation: automatic winding packaging

Process flow of pu rigid foam sandwich panel machine

• Panel preparation: metal panel uncoiling, cleaning, preheating
  

• Raw material mixing: Accurately measure and high-pressure mix polyurethane raw materials
  

• Pouring foam: evenly pour the mixture onto the lower panel
  

• Composite pressing: The upper panel is covered with foam and double belt pressing is carried out simultaneously
  

• Maturation and setting: complete the complete solidification of foam in the press
  

• Fixed length cutting: automatic cutting according to the set length
  

• Stacking packaging: Automatic stacking and packaging of finished products

Advantages of polyurethane rigid foam sandwich panel plant

• Efficient and energy-saving: adopting a thermal cycle system, energy consumption is 30% lower than traditional equipment
  

• Precise control: PLC+touch screen control, parameters can be precisely adjusted
  

• Continuous production: 24-hour uninterrupted operation, stable production capacity
  

• Stable quality: high degree of automation, reducing human error
  

• Environmentally friendly design: Closed foaming, centralized treatment of exhaust gas

Application field

• Building exterior wall insulation system
  

• Cold storage insulation enclosure structure
  

• Cleanroom partition
  

• Mobile house wall
  

• Industrial equipment insulation shell

When choosing a pu rigid foam sandwich panel machine, the following factors should be considered:

• Expected production capacity demand
  

• Product specification range
  

• Automation level requirements
  

• Factory space conditions
  

• Energy supply situation
  

• Environmental standard requirements

Maintenance and upkeep of polyurethane rigid sandwich panel machine

• Check each lubrication point daily
  

• Clean the mixing head and pipeline weekly
  

• Monthly calibration of the measurement system
  

• Quarterly inspection of electrical system
  

• Annual comprehensive inspection and maintenance

With the increasing demand for building energy efficiency and the development of prefabricated buildings, polyurethane rigid foam sandwich panel production machines are moving towards higher automation, more precise control, and more environmentally friendly directions. In the future, more intelligent and digital new equipment will emerge.