The XINNUO Z-Lock System Sandwich Panel Production Line is a high-efficiency, fully automated production system designed for manufacturing wall panels, roof panels, and various types of sandwich panels. Its core feature is the Z-Lock interlocking system, which ensures high durability and strong panel connections, providing secure installation while allowing for future expansion or modification.
The panels can use either environmentally-friendly EPS (expanded polystyrene) or rock wool cores:
EPS Core: Lightweight, white, with excellent waterproofing, thermal insulation, soundproofing, and cushioning properties; CFC-free, environmentally friendly, and excellent temperature regulation.
Rock Wool Core: Made from natural mineral fibers, providing excellent fire resistance, thermal insulation, and soundproofing, safe and eco-friendly.
Both types of cores are covered with SMP-coated (Silicon Modified Polyester) galvanized steel, treated with zinc coating and finished with a multilayer polyester paint, making the panels corrosion-resistant, durable, and suitable for tropical and humid climates.
Steel Plate Decoiling Machine
Provides stable feeding of color steel, galvanized, or aluminum sheets
Hydraulic mandrel for automatic operation with precise control
Roll Forming Machine
Continuously shapes the steel sheet into flat or corrugated profiles
Cassette-type molds and rail wheel system for fast mold changes
Preheating Room
Hot air circulation heats the sheet to optimal temperature for EPS or rock wool bonding
Glue Coating Device
Evenly applies adhesive to ensure firm bonding between steel sheets and core
Options: mixing type (cost-effective) or spray type (reduces adhesive usage)
Double Belt Laminating System
Applies constant pressure and heat to form the sandwich panel
Z-Lock interlocking structure ensures secure panel connection
Band Saw Cutting Machine
Cuts sandwich panels to customer-specified lengths
Multiple cutting methods available
Cooling System
Ensures stable panel formation
Guarantees flat surface and uniform thickness
Stacking System
Automatically stacks finished panels
Roof panels can be cross-stacked if required
Packaging Machine
Wraps stacked panels with plastic film (4-side or 6-side)
Optional pallet system automatically inserts EPS spacers for easier transport and storage
| Item | Specification |
| Raw Materials | Color steel, galvanized steel, aluminum sheet |
| Sheet Thickness | 0.2–0.8 mm |
| Sheet Width | ≤1250 mm |
| Sandwich Panel Length | 2000–16000 mm |
| Sandwich Panel Width | 600–1200 mm |
| Sandwich Panel Thickness | 30–300 mm (excluding corrugation height, suitable for EPS or rock wool) |
| Production Speed | 3–10 m/min (adjustable) |
| Double Belt Conveyor Effective Length | 16000–36000 mm |
| Foaming / Laminating Working Pressure | 150–200 Bar |
| Total Power | Approx. 300 kW |
| Machine Dimensions (L×W×H) | 130000 × 15000 × 6000 mm |
Z-Lock interlocking system ensures secure panel installation and future expandability
Supports EPS or rock wool cores to meet different fire resistance, thermal insulation, and soundproofing requirements
SMP-coated galvanized steel with multilayer polyester finish provides excellent corrosion resistance and weather durability
Continuous laminating and cooling systems guarantee flat, uniform panels
High degree of automation, simple operation, and stable output
Suitable for tropical and humid climates, widely used in cold storage, factories, warehouses, and prefabricated buildings
