3D Arrangement Drawing of Sandwich Panel Production Line

Sandwich Panel Machinery

Sandwich panel machineries are commonly classified by core materials, mainly divided into four categories. First, the polyurethane (PU/PIR) sandwich panel machinery is equipped with high-pressure foaming equipment and features excellent thermal insulation performance, which is applied to the production of plates for cold storage and energy-saving buildings. Second, the rock wool sandwich panel machinery focuses on fire resistance and sound insulation, suitable for processing fireproof and purification panels for external walls of high-rise buildings. Third, the phenolic foam sandwich panel machinery adopts mature foam molding technology. The produced panels are flame retardant, temperature resistant, thermal insulated and anticorrosive, and widely used in industrial plants, clean rooms and external wall insulation projects. Fourth, the glass wool sandwich panel machinery emphasizes sound absorption, noise reduction, moisture resistance and thermal insulation, commonly used for sound insulation and ventilation insulation panels in factories. Different sandwich panel production machineries are designed for specific core material processes with varied equipment structures and processing parameters.

Continuous Sandwich Panel Machineries

An all-in-one automated sandwich panel machinery for continuous production of rock wool, PU, PIR and phenolic sandwich panels. Covering unwinding to palletizing, it is ideal for manufacturing insulated wall & roof panels used in factories, cold storages and cleanrooms.

What is Sandwich Panel Machinery

The sandwich panel manufacturing machinery is an integrated automatic complete production equipment that integrates multiple processes including raw material conveying, panel forming, core material compounding, pressing and curing, fixed-length cutting, and finished product stacking. It is mainly used for the large-scale production of various composite sandwich panels. Adopting a modular structural design, the equipment connects various functional units in an orderly manner to form a closed-loop continuous operation line. It enables firm lamination of metal face sheets with heat-insulating and flame-retardant core materials. The produced panels feature multiple superior performances such as light weight, thermal insulation, fire resistance, sound insulation and shock resistance, serving as the core production equipment for building enclosure structures, industrial workshops, purification engineering and other fields. The entire sandwich panel making machinery is suitable for long-term continuous working conditions. Its main body adopts a high-strength steel frame structure with compression resistance and wear resistance, delivering high operational stability, effectively reducing mechanical wear and tear, and fully meeting the demands of industrial mass production.

continuous sandwich panel line

Production Process

Continuous sandwich panel production line: It is the mainstream intelligent production line adopting a double-caterpillar continuous conveying structure. Raw materials undergo uninterrupted feeding, lamination, curing and cutting processes. Featuring high production continuity and capacity, the line delivers uniform panel forming precision. It is suitable for large-scale standardized mass production and widely used in the manufacturing of pu, pir , rock wool, mineral wool and glass wool sandwich panels.

full-automatic sandwich panel line

Degree of Automation

Full-automatic sandwich panel production line: Adopts full-process PLC intelligent control, realizing automatic uncoiling, deviation correction, forming, gluing, laminating, cutting, stacking and packaging with minimal manual intervention, featuring high intelligence and integration level.

Classification by Core Material Type

Overall Structure of Sandwich Panel Machine

This modular sandwich panel production line features independent and coordinated working units for stable automatic production. Below is the concise introduction of each section:

pu sandwich panel production machinery, pir sandwich panel machinery
  1. Uncoiling & Leveling Unit
    Processes galvanized and color steel coils with automatic unwinding, tension control and deviation correction. Ensures flat and smooth metal sheets.
  2. Cold Roll Forming Unit
    Forms metal sheets into roof, wall and clean room panels. Fast mold change for various profiles with high forming accuracy.
  3. Core Material Laying Unit
    Suitable for rock wool, glass wool and PU foam. Realizes automatic cutting, laying and foaming to guarantee stable insulation and fire resistance.
  4. Gluing & Laminating Unit
    Even glue coating + constant temperature pressing. Firm bonding without hollowing or delamination for strong panel structure.
rockwool sandwich panel machinery, mineral sandwich panel making machinery
  1. Cutting & Trimming Unit
    Servo precision cutting to customized sizes. Smooth edges with adjustable cutting speed.
  2. Cooling & Finishing Unit
    Rapid cooling, surface dedusting and protective film lamination. Effectively prevents scratches and corrosion.
  3. Stacking & Packing Unit
    Automatic stacking and strapping. Saves labor cost and simplifies transportation and storage.
  4. Intelligent Control System
    PLC intelligent control with one-click mode switching. Supports fault alarm, data recording and stable line operation.

Performance Features of Sandwich Panel Machinery

pu pir sandwich panel production line
  1. High Automation
    Fully automated sandwich panel line enables unmanned workflow from raw materials to finished products. Only 1-2 workers are required for monitoring, minimizing labor cost and human errors. It supports non-stop long-term production.
  2. Consistent Precision
    Equipped with servo drive, precision rollers and intelligent deviation correction. Strict tolerance control on board thickness, length and profile. Even lamination without delamination ensures stable and standardized product quality.
  3. Wide Compatibility
    Modular design allows fast mold replacement and parameter adjustment. It accommodates sandwich panels in various thicknesses, materials and profiles, covering both standard building panels and customized non-standard products.
  4. Energy Saving & High Safety
    Variable frequency control reduces energy consumption by adaptive power regulation. Built-in overload protection, emergency stop and anti-deviation devices ensure operational safety. The sealed dustproof structure achieves clean and eco-friendly production.
  5. Durability & Easy Maintenance
    Heavy-duty steel frame and wear-resistant alloy parts guarantee high impact and corrosion resistance for harsh industrial conditions. Modular structure simplifies daily inspection and maintenance with low operational costs.
continuous pu sandwich panel production line

General Manufacturing Process Flow

The technological processes of various sandwich panel production machines are basically identical. The standard production process of the continuous type is as follows:

Raw material feeding → Uncoiling and leveling → Deviation rectification and feeding → Panel cold roll forming → Surface pretreatment → Automatic gluing → Core material laying / foaming filling → Double-layer plate composite pressing → Constant temperature curing → Cooling and shaping → Fixed-length cutting → Edge trimming and dust removal → Surface film laminating → Automatic stacking → Packaging and warehousing.

All working procedures are closely connected with fully automated circulation throughout the whole process, which effectively shortens the production cycle and ensures production continuity.

continuous pu sandwich panel machinery

Main Application Areas

Sandwich panels manufactured by this continuous production line cover a wide range of industrial and construction applications:

  1. Building Construction: Roof and wall cladding for industrial workshops, warehouses and steel structure buildings.
  2. Cleanroom Engineering: Specialized panels for clean rooms, hospital operating rooms and food processing facilities.
  3. Cold Chain Insulation: Thermal insulation panels for cold storage rooms, constant-temperature warehouses and refrigerated truck bodies.
  4. Temporary Construction: Prefabricated houses, site temporary buildings and construction enclosures.
  5. Fireproof Construction: Fire-resistant panels for partition walls, fire corridors and explosion-proof buildings.

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