Automatic Trapezoidal Roof Panel Roll Forming Production Line
I. Product Overview
This production line is a fully automatic cold bending roll forming equipment specially designed for the steel structure building roof system. It can process metal coils such as galvanized steel coils,
color-coated steel coils (PPGI/PPGL), and aluminum-magnesium-manganese coils into high-rigidity trapezoidal roof panels in one go through continuous progressive roll bending and precise
fixed-length cutting. The whole line integrates six processes: uncoiling, leveling, feeding, roll forming, cutting and discharging, which can operate automatically with one key. It features high forming
precision, fast production speed and stable plate performance, making it the core equipment for the production of roof panels in industrial plants, warehouses, venues, residences and other buildings.
II. Core Advantages
High-Precision Forming
16–24 sets of progressive forming workstations, adopting GCr15/GCr12MoV bearing-grade forged steel rolls, which are precision ground, quenched and chrome-plated (hardness HRC58–62). The plate section is uniform, the surface is scratch-free, and the tolerance is controlled within ±1 mm.
High Efficiency and Stability
The whole machine adopts H-beam welded frame + thickened wall plate, with strong rigidity and small operation vibration; 5.5–7.5 kW main motor + 4 kW hydraulic system, the production speed is adjustable from 10–60 m/min, and the daily output can reach 10,000 meters.
Intelligent Control
Standard configuration: Siemens/Delta PLC + color touch screen, supporting length preset, counting, fault self-diagnosis and one-key start-stop; hydraulic flying shear/fixed-length cutting, with flat cut and no burrs.
Durability and Low Consumption
Automatic centralized lubrication system, air cooling and full protection safety design; the service life of key components exceeds 15 years, with simple maintenance and low failure rate.
Flexible Adaptability
Compatible with 0.3–1.0 mm plate thickness and 600–1250 mm feeding width; can be customized with mainstream trapezoidal types such as TR4/5/6, 840/900/1050.
III. Standard Configuration
- Main machine (forming frame + transmission)
- Hydraulic cutting system
- PLC intelligent control cabinet (touch screen)
- 5-ton hydraulic uncoiler
- Finished product discharging frame
- Random tools + wearing parts + instruction manual

Technical Parameters (Standard Model)
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Parameter Item
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Specification
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Applicable Materials
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Galvanized steel, color-coated steel (PPGI/PPGL), aluminum-magnesium-manganese, stainless steel
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Material Thickness
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0.3–0.8 mm (customizable 0.3–1.2 mm)
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Feeding Width
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1000 / 1220 / 1250 mm (customizable)
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Effective Plate Width
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760–1100 mm (depending on plate type)
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Number of Forming Stations
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16–24 stations
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Roll Material
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GCr15 forged steel, quenched and chrome-plated
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Spindle Diameter
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Φ70–80 mm solid 45# steel
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Production Speed
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10–25 m/min (adjustable)
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Cutting Method
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Hydraulic fixed-length cutting / flying shear
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Blade Material
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Cr12MoV (quenched HRC60–62)
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Control System
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PLC + touch screen (Siemens/Delta)
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Total Power
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9.5–11.5 kW
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Power Supply
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380V/50Hz/3P (customizable)
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Equipment Dimensions
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Approx. 8500×1500×1600 mm
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Equipment Weight
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5.5–7 tons
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Cutting Precision
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±1 mm
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Noise
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≤70 dB
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Cooling/Lubrication
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Air cooling / automatic/manual lubrication
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Warranty
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1 year
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Application of Trapezoidal Profile Sheet Bending Machine
This profile is designed for commercial and industrial roofing; which is suitable for low pitch roofing as wellas curved roofing.Sheets with higher ribs and bold ribs, making exceptionally
attractive and high-performance roofing and cladding product forvarious Light Steel structure construction, civil construction, and mansions Building.

Why Choose Us
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Source Factory: 30 years of R&D and manufacturing of roll forming equipment, exported to more than 60 countries
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Customization Capability: Full customization of plate type, thickness, width, speed and automation level
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Quality Assurance: Full-process quality inspection, standardized components, 72-hour pre-delivery test run
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Service System: On-site installation and commissioning, operation training, 24-hour technical support, lifelong spare parts supply