PU Sandwich Panel Production Line China Factory Leading Industrial Suppliers
The PU Sandwich Panel Production Line is a sophisticated, industrial-grade manufacturing solution designed for the high-efficiency production of insulated panels. Featuring a massive 24m double conveyor system and a high-pressure PU foaming unit, this line is engineered to produce Roof 4-rib, Cold Room, and Boltless panels with precision. By integrating advanced roll forming technology with a precise chemical injection system, it ensures superior thermal insulation and structural integrity for modern construction needs.
Equipped with a comprehensive suite of automation, including a dual-coil uncoiler, a corona treatment system for enhanced adhesion, and a high-precision oscillating mixing head, this production line optimizes the entire workflow from raw steel coils to finished panels. Whether producing panels for cold storage or industrial roofing, the system provides unmatched flexibility in thickness (35-150mm) and length (up to 15,000mm), ensuring your facility meets the most demanding global standards of the metal forming industry.
Detailed Parameters
| Raw Material | Pre-painted Steel Sheet | Coil Weight | Max. 10 Tons |
|---|---|---|---|
| Sheet Thickness | 0.4mm - 0.7mm | Panel Thickness | 35mm - 150mm |
| Coil Width | 1070 / 1200 / 1220mm | Max Panel Length | 15,000mm |
| Line Speed | 0m - 8m/min | Foam Density | 35 - 50 kg/m³ |
| Power Source | 380V or 440V × 50Hz | Hydraulic Pressure | Max. 150kg/cm² |
Key Advantages
High-Pressure Foaming
Utilizes a 4-component high-pressure PU system with precision metering pumps for consistent foam density and insulation.
Efficient Conveying
A 24m double belt conveyor with an integrated heating system ensures optimal curing and stability of the panels.
Versatile Profiling
Capable of switching between Roof 4-rib, Cold Room, and Boltless hidden-fix panels for diverse market demands.
Precision Control
Advanced synchronization system and digital monitors for each PU component allow for real-time monitoring and adjustment.
Surface Perfection
Equipped with a Corona system and protective film coating devices to ensure a flawless exterior finish.
Safety Integrated
Includes a comprehensive Pentane safety system with gas detectors, suction units, and specialized ventilation.
Product Gallery
Management Platforms
Material Handling
Hydraulic uncoilers and coil cars manage up to 10-ton coils for seamless feeding.
Thermal Control
Electric pre-heating for steel facing and automated temperature control for conveyors.
Chemical Metering
Four-component high-pressure pumps with dedicated flow meters for precise PU mixing.
Gas Monitoring
Integrated gas sensors and suction units ensure a safe environment during Pentane usage.
Cutting Accuracy
Combined band saw and disk saw system for precise overlapping and panel length cutting.
System Sync
Centralized electric control system synchronizes roll forming and foaming speeds.
Investment Return Comparison
| Feature | Standard Line | Our Advanced Line |
|---|---|---|
| Production Speed | Low / Manual | High / Automated (8m/min) |
| Panel Variety | Single Profile | Multi-Profile (Roof/Cold/Boltless) |
| Foam Quality | Low Pressure | High Pressure (Oscillating Head) |
| Curing Time | Natural Cooling | 24m Heated Double Conveyor |
| Operational Safety | Basic Ventilation | Full Gas Detection & Suction System |
Frequently Asked Questions
This production line is designed to handle panel thicknesses ranging from 35mm up to 150mm, providing versatility for various insulation requirements.
Yes, the line supports the production of Roof 4-rib panels, Cold Room panels, and Boltless (hidden fix) panels through its flexible roll forming configuration.
We use a high-pressure PU foaming machine with 4 components, precise metering pumps, and an oscillating mixing head to ensure a uniform, high-density foam core.
The system includes 6 gas detectors, a dedicated ventilation fan unit, and a gas suction system to safely remove Pentane from the foaming zone.
The production line can manufacture panels with a minimum length of 2,000mm up to a maximum of 15,000mm.
Yes, the line is equipped with a protective film coating device for both top and bottom facing to ensure the panels remain pristine during transport.
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