helen@hbxinnuorollforming.com
This Z-lock S-joint sandwich panel production line is the most advanced configuration among all insulated panel roll forming systems. Designed for maximum air and water tightness, the S-shaped interlock profile creates a continuous thermal barrier — making it the preferred choice for cold storage warehouses, pharmaceutical cleanrooms, food processing plants, and high-end prefabricated buildings where temperature control and hygiene are non-negotiable. The full production line spans 65 meters and integrates dual decoilers, upper and lower roll forming units, core-material feeding, heated lamination, and automatic flying cutoff into one seamless operation. Successfully commissioned in Uzbekistan in 2025, this line delivers export-grade insulated panels day after day.
| Joint Type | Z-lock / S-joint (cam-lock interlocking mechanism) |
| Effective Panel Width | 950 mm / 970 mm / 1000 mm |
| Feeding Coil Width | 1200 mm (standard), 1220 / 1250 mm (optional) |
| Steel Thickness Range | 0.4 – 0.8 mm (top skin), 0.3 – 0.6 mm (bottom skin) |
| Core Material Options | PU rigid foam / Rock wool (fire-rated A-grade) / Glass wool |
| Forming Rows | 16 rows (upper unit) + 16 rows (lower unit) — extra stations for S-channel precision |
| Frame Construction | 350H heavy steel welded frame, shot-blasted and electrostatic coated |
| Shaft Diameter | Φ75 mm, heat-treated 45# steel with hard chrome plating |
| Mid-Plate Thickness | 16 mm |
| Glue Roller Section | 54 precision rubber-coated rollers, CNC-machined 12-meter bed, 0.05 mm flatness |
| Lamination Press | Patented one-way steel belt anti-shift pressing + heated curing zone |
| Glue Injection | Dual glue pumps with automatic mixing and uniform spray heads |
| Cutting System | Automatic flying cutoff saw, PLC servo length control ±1 mm accuracy |
| Main Motor Power | 4 KW × 2 (upper + lower drive), 2.2 KW × 2 (glue pump motors) |
| Chain Drive | 6-Fen double-row heavy chain |
| Control System | PLC touchscreen with remote fault diagnosis, batch counting, auto-stop |
| Total Line Length | 65 m (full S-joint configuration including curing zone) |
| Production Speed | 2 – 6 m/min (varies by panel thickness and core type) |
| Installed Power | Approx. 45 KW total |
| Feature | Standard Lap Joint | Z-Lock S-Joint |
|---|---|---|
| Joint Tightness | Good — screw-fixed overlap | Excellent — cam-lock mechanical interlock |
| Thermal Bridge | Present at fastener points | Minimized — no through-fastener penetration |
| Air Leakage Rate | Moderate | Near zero — continuous S-channel seal |
| Installation Speed | Standard screw fixing | Faster — cam-lock snaps into place |
| Water Ingress Risk | Requires sealant at joints | Self-sealing interlock, no sealant needed |
| Typical Applications | General warehouses, factories | Cold storage, cleanrooms, food processing, pharma |
| Core Type | Thermal Conductivity | Fire Rating | Density | Best For |
|---|---|---|---|---|
| PU Rigid Foam | λ = 0.022 W/m·K | B1 / B2 | 38 – 45 kg/m³ | Cold storage, freezer rooms |
| Rock Wool | λ = 0.040 W/m·K | A1 (non-combustible) | 100 – 150 kg/m³ | Fire-rated buildings, pharma cleanrooms |
| Glass Wool | λ = 0.035 W/m·K | A1 | 48 – 64 kg/m³ | Lightweight acoustic + thermal panels |
| S-Channel Forming Precision | Extra 2-row forming stations per unit ensure exact S-profile geometry — panels interlock perfectly every time, eliminating on-site fitment issues |
| Cam-Lock Mechanism | Panels snap together without exposed fasteners; one worker can install a panel in under 30 seconds |
| 54-Roller Extended Glue Bed | Longest contact zone in its class — 70% more bonding surface than standard 32-roller configurations |
| Heated Curing Zone | Temperature-controlled pressing section accelerates adhesive cure, enabling faster line speed without compromising bond strength |
| Quick Core Material Changeover | Modular feeding station switches between PU injection, rock wool conveyor, and glass wool in under one shift |
| Remote PLC Diagnostics | Self-developed control software — any issue resolved via one video call; no third-party license fees |
| Proven in the Field | Full line commissioned in Uzbekistan (Tashkent) — delivering production-grade insulated panels for Central Asian market |
Hebei Xinnuo is a professional cold roll forming machinery manufacturer with 20+ years of experience. We specialize in C/Z purlin machines, roof panel roll formers, floor deck machines, and custom profile solutions — exported to 50+ countries worldwide.
