Customized PU Sandwich Panel Manufacturing Machinery For House

Sinowa customized pu sandwich panel manufacturing machinery for house, polyurethane sandwich panel manufacturing machinery is a complete set of equipment specially used to produce polyurethane composite panels for buildings. It combines metal panels (usually color steel plates or stainless steel plates) with polyurethane foam core materials through continuous production processes to form building panels with excellent thermal insulation performance. This type of machinery represents the highly automated level of modern building material production and is widely used in construction fields such as mobile homes, cold storage facilities, and industrial plants.

sandwich panel machine

A complete polyurethane sandwich panel production line typically consists of the following key components:

• Uncoiling system: responsible for unfolding and preliminary leveling of metal coils, usually equipped with dual unwinding devices to achieve continuous production.
  

• Forming unit: Process flat metal into the desired wavy or trapezoidal cross-section through multiple rolling processes to enhance the structural strength of the sheet metal.
  

• Preheating system: Preheat the metal panel to ensure good adhesion with polyurethane.
  

• Foaming system: The core components include high-pressure foaming machine, mixing head, temperature control system, etc., which precisely control the ratio, temperature, and injection volume of polyurethane raw materials.
  

• Composite system: Inject foamed polyurethane between upper and lower metal panels, and complete curing and bonding under specific temperature and pressure.
  

• Double track laminating machine: provides a constant pressure and temperature environment to ensure uniform foaming of polyurethane and firm bonding with the panel.
  

• Cutting system: Using flying saws or CNC cutting, the continuously produced boards are precisely cut to the set length.
  

• Stacking system: Automatically collect and stack finished boards, reducing manual handling.

Polyurethane sandwich panel manufacturing machinery has multiple technological advantages:

• High degree of automation: Adopting PLC control system to achieve full process automation from raw material input to finished product stacking.
  

• Excellent production efficiency: The continuous sandwich panel production line speed can reach 5-15 meters per minute, and the daily output can reach 5000-10000 square meters.
  

• Foaming accuracy control: The high-pressure foaming system ensures uniform mixing of polyurethane and fine and uniform pore structure.
  

• Energy saving and environmental protection: The closed-loop raw material conveying system reduces waste, and the exhaust gas collection and treatment device meets environmental protection requirements.
  

• Multifunctionality: The same production line can produce boards of different thicknesses (50-200mm) and widths (950-1200mm).

The production process of pu sandwich panels mainly includes the following steps:

• Metal coil unwinding, cleaning, and pretreatment
  

• Metal panel forming (reinforcement or embossing)
  

• Preheat the panel to the appropriate temperature
  

• Lower metal panels are sent into the composite area
  

• Accurate measurement, mixing, and injection of polyurethane raw materials between panels
  

• Cover and preliminarily composite the upper metal panel
  

• Enter the laminating machine for foaming curing and complete bonding
  

• Cooling and shaping of sheet metal
  

• Automatically cut according to the set length
  

• Finished product inspection and stacking packaging

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

• Production scale: Small enterprises can choose semi-automatic production lines, while large enterprises should choose fully automatic high-speed production lines.
  

• Product type: Ordinary building boards and fireproof boards have different equipment requirements.
  

• Energy consumption indicators: New equipment commonly uses frequency conversion technology and heat recovery systems to reduce energy consumption.
  

• Intelligence level: Modern equipment is equipped with remote monitoring, fault diagnosis, and data analysis functions.

Polyurethane sandwich panel mechanical manufacturing products are widely used in:

• Prefabricated building walls and roofs
  

• Cold storage insulation and enclosure system
  

• Purification workshop partition
  

• Rapid construction of mobile homes
  

• Energy saving renovation of industrial plants

PU sandwich panel manufacturing machinery as an important equipment for modern building industrialization, has directly promoted the development of energy-saving building materials through technological progress, providing strong support for the construction industry to achieve the "dual carbon" goal.