I. Core Definition
The Dual-Chain Drive Trapezoidal Single-Skin Roll Forming Machine is engineered for extra-wide roofing panels (1200mm feed width). Its dual-chain synchronous drive system eliminates deflection and skipping issues common in single-chain machines during wide-sheet processing, enabling high-precision continuous production. Output: trapezoidal single-skin roofing panels (standard corrugation height: 25-80mm, pitch: 200-400mm).
II. Key Advantages for 1200mm Feed
1. Anti-Slip Design: Dual-chain + hydraulic feeding system improves stability by 40%
2. Ultra-Flat Surface: 24 reinforced rollers (Ø80-120mm) ensure flatness ≤0.3mm/m²
3. Thick-Sheet Capacity: Dual 15kW gear motors support continuous forming of 4mm steel
4. Edge Precision: Optional laser edge guide for width tolerance ±0.5mm
III. Core Specifications
Materials: Galvanized/Aluzinc®/Stainless Steel (Yield strength ≤550MPa)
Thickness Range: 0.6-4.0mm (Optimal: 1.5-3.0mm)
Speed: 6-12 m/min (Auto-adjusting)
Power: 38kW (Hydraulic/control included)
Tooling Change: ≤25 mins (Quick-change base)
IV. Dual-Chain Drive System
Twin-output gearbox synchronizes two chain sets. Hydraulic synchronization controller achieves ±0.1mm phase compensation, eliminating torque imbalance in wide-sheet processing.
V. Applications
1. Large-Scale Industrial Buildings
Aircraft hangars/Warehouses (1200mm width reduces overlaps, improving waterproofing by 30%)
BIPV Roofing (Direct PV mounting, cutting installation costs)
2. Special Facilities:
Cold storage floors (4mm load-bearing + insulation integration)
Explosion-proof plants (Stainless steel corrosion resistance)
VI. South Africa Adaptations
Corrosion Resistance: Tungsten carbide-coated rollers (3x lifespan)
Power Compatibility: Wide-voltage motors (340-440V)
Dust Protection: Sealed chain case + positive-pressure system
Certification: SABS-certified drive system (Cert. No.: MH23-1200)
VII. Competitive Edge
| Metric | Single-Chain Machine | Dual-Chain Machine |
|------------------|----------------------|--------------------|
| Max. Sheet Width | ≤800mm | 1200mm |
| 4mm Yield Rate | 72-85% | ≥96% |
| Annual Maintenance | $8,000 | $3,500 |
VIII. Customer Value
Material Savings: 15% reduction from minimized overlaps
Energy Efficiency: 60% lower consumption vs. hydraulic presses
Productivity: 1.8-2.5 km/shift (~3 football field roofs)
SA Case Study: Cape Town logistics center project shortened by 45 days, winner of 2024 African Steel Structure Gold Award
Operational Recommendations:
1. Essential: Sheet thickness monitor (real-time tolerance alerts)
2. Recommended: Auto-stacking robot (reducing manual handling damage)
3. SA Support: Local maintenance via Steel & Tube SA partnership
Audited Supplier 
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