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360° Lock-Seam Roof Panel Roll Forming Machine

360° Lock-Seam Roof Panel Roll Forming Machine

The 360° Lock-Seam Roof Panel Roll Forming Machine is specialized equipment for manufacturing high-performance standing seam metal roofing panels. It forms a continuous 360-degree mechanically seamed edge through a precise roll forming process, creating a weathertight, structural roofing system without exposed fasteners. The machine processes metal coils (such as aluminum, galvanized steel, or coated steel) into panels with consistent lock-seam profiles, suitable for commercial, industrial, and architectural roofing applications that demand superior waterproofing, wind uplift resistance, and thermal expansion accommodation.


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The 360° Lock-Seam Roof Panel Roll Forming Machine is specialized equipment for manufacturing high-performance standing seam metal roofing panels. It forms a continuous 360-degree mechanically seamed edge through a precise roll forming process, creating a weathertight, structural roofing system without exposed fasteners. The machine processes metal coils (such as aluminum, galvanized steel, or coated steel) into panels with consistent lock-seam profiles, suitable for commercial, industrial, and architectural roofing applications that demand superior waterproofing, wind uplift resistance, and thermal expansion accommodation.


I. Equipment Overview

This equipment is a precision cold roll-forming machine specially designed for manufacturing high-performance standing seam roofing systems. Utilizing a 360° mechanical lock-seam forming process, it processes metal coils into fully sealed, puncture-free roofing panels. The product is widely used in large public buildings, industrial plants, commercial complexes, and other roofing projects that demand strict waterproofing, wind resistance, and durability.


II. Core Technical Features

Fully Sealed Lock-Seam Design

  • 360° mechanical lock-seam ensures complete waterproof sealing.


  • Penetration-free fixation maintains roof integrity.


  • Floating connection accommodates thermal expansion and contraction.


High-Precision Forming System

  • Lock-seam angle accuracy: 360° ± 1°.


  • Panel height control accuracy: ±0.3 mm.


  • Multi-pass progressive forming ensures tight seam closure.


Intelligent Control System

  • PLC + touchscreen supports recipe storage and recall.


  • Online detection of seam quality and dimensional accuracy.


  • Fault self-diagnosis and production data traceability.


Strong Material Adaptability

  • Applicable to aluminum-magnesium-manganese sheets, aluminized zinc sheets, titanium-zinc sheets, copper sheets, etc.


  • Thickness range: 0.5–1.5 mm.


  • Supports high-strength materials (≤800 MPa).



III. Main Technical Parameters

Item

Technical Specifications

Applicable Materials

Aluminum-magnesium-manganese sheets, aluminized zinc sheets, titanium-zinc sheets, copper sheets, stainless steel, etc.

Material Thickness

0.6–1.2 mm (expandable to 0.5–1.5 mm)

Raw Material Width

400–600 mm (customizable to 300–800 mm)

Finished Panel Width

300–500 mm

Standing Seam Height

25–65 mm (adjustable)

Forming Speed

6–20 meters/minute

Lock-Seam Accuracy

360° ± 1°

Control System

PLC + industrial touchscreen, supports bus communication

Total Power

45–100 kW


IV. Production Process Flow

Uncoiling & Feeding → Precision Leveling → Edge Pre-forming → Lock-Seam Structure Forming → Precision Sizing & Shaping → Online Inspection → Fixed-Length Cutting → Finished Product Output

(Optional processes: end forming, automatic stacking, protective film application)


V. Lock-Seam Structural Features

  • Dual Locking Mechanism: Mechanical lock-seam + elastic sealing.


  • Drainage Design: Hidden drainage channels.


  • Wind Resistance Reinforcement: Internal stiffener structure.


  • Quick Installation: Dedicated clip and fastener system.



VI. Performance Indicators

Performance Item

Standard Value

Test Standard

Wind Pressure Resistance

≥3.0 kPa

GB/T 7106

Waterproof Rating

Grade 1 (no leakage)

GB 50176

Air Tightness

≤0.1 m³/(m²·h)

GB/T 7107

Thermal Performance

U-value customizable

GB/T 8484

Service Life

≥40 years (aluminum-magnesium-manganese sheets)

Accelerated aging tests


VII. Application Areas

  • Large Public Buildings: Airports, convention centers, stadiums.


  • Industrial Buildings: Factories, logistics centers, data centers.


  • Commercial Buildings: Shopping malls, office buildings, hotels.


  • Transportation Hubs: High-speed railway stations, bus stations, terminals.


  • Special Buildings: Laboratories, cleanrooms, museums.



VIII. Service Support

  • Provides roofing system design, thermal calculations, and structural verification.


  • Equipment installation and commissioning, operator training, and process guidance.


  • 18-month warranty on key components, lifelong technical support.


  • Assistance with roofing system performance testing and engineering certification.




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