Double-layer Sandwich Panel Machine

The double-layer sandwich panel machine is an automated equipment specifically designed for producing sandwich composite panels for construction. It combines two materials with different characteristics through continuous production processes to form a new type of building material with excellent performance. The double-layer sandwich panel production line represents the trend of modern construction industry towards high efficiency, energy conservation, and environmental protection.

sandwich panel machine

Basic composition of double-layer sandwich panel machine

A complete double-layer sandwich panel line typically includes the following core components:

• Uncoiling system: used for unfolding and conveying metal panel materials
  

• Forming unit: The metal sheet is formed into the desired cross-sectional shape through multiple rolling processes
  

• Preheating system: Preheating the metal panel to improve bonding quality
  

• Foaming system: precise control of the foaming process of polyurethane and other core materials
  

• Composite system: press and solidify the upper and lower metal panels with the middle core material
  

• Cutting system: precise cutting according to the set length
  

• Stacking system: Automated collection and stacking of finished sheet materials

The double-layer sandwich panel production machine has the following key technical parameters:

• Production speed: 8-15 meters per minute (depending on material type and thickness)
  

• Board width: Conventional range 800-1200mm, customizable
  

• Core material thickness: 30-200mm (polyurethane/PU) or 50-300mm (rock wool/glass wool)
  

• Panel materials: aluminum zinc plated steel plate, stainless steel plate, aluminum plate, etc., with a thickness of 0.3-1.0mm
  

• Control system: PLC+touch screen control, with fault self diagnosis function
  

• Installed power: 80-200kW (according to production line configuration)

Characteristics of double-layer sandwich panel manufacturing machine

• Intelligent temperature control system: using PID algorithm to accurately control the foaming temperature, with an error of ± 1 ℃
  

• Double track press technology: ensuring the flatness and bonding strength of the sheet metal
  

• Online quality monitoring: equipped with thickness detector and defect recognition camera
  

• Energy saving design: The utilization rate of thermal energy recovery can reach over 60%
  

• Modular structure: easy to maintain and expand functionality

Production process flow of double-layer sandwich panel making machine

• Panel pretreatment: After unwinding and leveling, the metal coil enters the cleaning section to remove oil stains
  

• Forming process: The flat plate is gradually formed into the desired cross-sectional shape using 12-24 forming rollers
  

• Adhesive coating process: automatic spraying of specialized adhesive on the bonding surface of the panel
  

• Core material preparation: Polyurethane raw materials are injected through a high-pressure mixing head and foamed into a closed space for molding
  

• Composite curing: Pressure curing at 60-80 ℃ for about 5-8 minutes
  

• Fixed length cutting: servo system controls sawing with an accuracy of ± 1mm
  

• Finished product processing: automatic stacking or packaging, optional with film protection

Application field

• Industrial buildings: wall and roof systems for factories and warehouses
  

• Commercial buildings: curtain walls and ceilings for shopping centers and sports venues
  

• Cold chain logistics: insulation enclosure for refrigerated warehouses and constant temperature workshops
  

• Cleanroom Engineering: Cleanrooms for the Pharmaceutical and Electronic Industries
  

• Temporary Buildings: Rapid Construction of Temporary Construction Sites and Emergency Facilities

With the continuous improvement of energy conservation and environmental protection requirements in the construction industry, double-layer sandwich panel manufacturing plant is developing towards higher efficiency, lower energy consumption, and more intelligence, providing more excellent enclosure system solutions for the modern construction industry.