Environmental Friendly PU Sandwich Panel Machine

The environmental friendly pu sandwich panel machine is a highly automated and intelligent professional equipment system, specifically designed for producing environmentally friendly building materials with excellent thermal insulation performance. This sandwich panel production line represents the advanced technology in the current field of building panel manufacturing, perfectly combining polyurethane foaming technology with automated machinery. The produced sandwich panels are widely used in industrial plants, cold storage, clean workshops, movable panel houses and other construction fields.

sandwich panel machine

The main components and functions of an environmentally friendly pu sandwich panel line

• Automatic feeding system
  The environmentally friendly sandwich panel production line adopts a closed automatic feeding device, which includes:
  Double metal coil automatic unwinding machine (capable of processing 0.3-1.2mm thick galvanized/color steel plates)
  Intelligent correction device (accuracy ± 0.5mm)
  Surface cleaning unit (electrostatic precipitator+ultrasonic cleaning)
  Pre coating processing workstation (enhancing board adhesion)

• Intelligent foaming system (core components)
  High pressure mixing head (mixing efficiency>98%)
  Proportionally accurate polyol/isocyanate metering pump (accuracy ± 0.5%)
  Environmentally friendly foaming agent injection unit (using fourth generation foaming agents such as HFO-1234ze)
  Temperature closed-loop control system (± 1 ℃ accuracy)

• Continuous Forming System
  Double track pressure forming machine (pressure adjustable range 5-25 tons)
  Infrared synchronous heating device (energy-saving 30%)
  Automatic thickness adjustment mechanism (3-200mm adjustable)
  Online density detector (real-time monitoring of foam quality)

• CNC cutting system
  High speed servo flying saw (cutting accuracy ± 0.3mm)
  Automatic stacking robot arm (maximum stacking height of 2.5 meters)
  Waste recycling device (recycling rate>95%)
  QR code marking machine (product traceability management)

• Environmental Protection Treatment System
  VOC catalytic combustion device (treatment efficiency>95%)
  Foaming agent recovery condenser
  Noise isolation cabin (working environment<75 decibels)
  Wastewater recycling system

Detailed explanation of production process flow

• Pre treatment stage: After cleaning and leveling, the metal panel enters the preheating zone (80-120 ℃)

• Foam injection: Precisely proportioned polyurethane raw materials are mixed under high pressure (120-150 bar) and evenly injected between the upper and lower panels through a mobile pouring gun

• Molding and curing: Under dual track pressure, polyurethane rapidly foams and solidifies (molding speed adjustable from 3-12m/min)

• Fixed length cutting: precise cutting by CNC flying saw according to the preset length (usually 6-12 meters)

• Post processing: automatic trimming of board edges, surface quality inspection, classification and stacking

• Environmental protection treatment: The exhaust gas generated during the production process is discharged after catalytic combustion to meet the standard, and the waste is automatically recycled, crushed and reused

The main application areas include:

• Cold chain logistics: Manufacturing of large cold storage facilities and refrigerated trucks

• Industrial energy conservation: factory insulation, pipeline insulation

• Modular Architecture: Quickly Built Temporary Hospitals, Schools, etc

• Special fields: cleanrooms, anti-static environments, etc

The environmentally friendly polyurethane sandwich panel production line not only realizes the green transformation of building material production, but also provides reliable equipment support for the sustainable development of the construction industry, which is an important technical support for promoting the achievement of the "dual carbon" goal.