Arch Double Layer Roll Forming Machine is a highly efficient, energy-saving, and precise metal cold-forming equipment. It integrates the molds for two different tile profiles – the 686 trapezoidal profile and the 836 arc profile – into a single machine body, achieving the function of "one machine, two uses."





Specifications
Equipment Technical Parameters (English Version)
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Item |
Content |
Remarks |
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Material |
Galvanized Color Steel Plate |
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Width |
1000 mm |
Special sizes are available upon request |
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Thickness |
0.25 mm - 0.8 mm |
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|
Color Matching |
Green Vertical Texture |
Customizable according to customer requirements |
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Overall Dimension (Approx.) |
8000 mm × 1700 mm × 1700 mm |
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|
Forming Rows |
16+13 rows |
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Forming Rollers |
45# Steel Finished, Hard Chrome Plated and Polished |
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Forming Roller Shaft |
Diameter 70 mm, 45# Steel Finished |
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Side Wall Plates |
16 mm |
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Frame Specification |
400H Steel |
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Motor Power |
5.5 KW Hydraulic Transmission |
Voltage can be customized to 380/220/240 |
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Transmission Mode |
Chain |
1 inch |
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Forming Speed |
8-12 m/min |
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|
Shearing Mode |
Cut after Hydraulic Forming, Hydraulic Guided Shearing |
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Cutter Material |
Cr12 Heat-Treated |
Thickened, High Wear-Resistant Blade |
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Electric Control System |
Equipped with PLC, Touch Screen and Coding Counter |
Fully Automatic Batch Setting |



Core Structure
Dual-Layer Stacked Design
Features a vertical dual-layer drive structure. The upper layer produces one profile type while the lower layer produces another (typically for matching roof and wall panels, or panels with different corrugations); production types can be quickly switched via a simple clutch mechanism.
Continuous Cold Roll Forming
Metal coils are uncoiled and fed into the forming system, where they are gradually shaped into the desired cross-section through continuous compression and bending by multiple sets of rollers.
Arc Curvature Adjustment Mechanism
This is the core feature of the Arch Double Layer Roll Forming Machine. By adjusting the curvature radius of the rollers, the machine transforms flat sheets into arched panels, directly meeting construction needs for large-span, beam-free arched structures such as grain silos, workshops, and warehouses.
Product Advantages
Compact Dual-Track Structure
The vertical stacking design shares a common base and power system, delivering double the production capacity within the same footprint. Compared to using two separate machines, this solution saves over 40% in factory floor space and fixed infrastructure costs.
Parametric Rapid Profile Switching
The system features a built-in database of profile types; the touchscreen interfaces with the servo drive system to automatically adjust feed guides and pressure compensation. Compared to traditional mold changes, setup time is reduced to under 15 minutes, enabling efficient handling of small-batch, multi-model production runs.
Millimeter-Level Synchronized Curvature Control
A closed-loop PLC control system calibrates forming pressure and sheet displacement in real-time. It precisely counteracts metal spring-back stress, keeping curvature deviation within ±2mm to ensure seamless assembly and eliminate costs associated with secondary installation adjustments.
Mobile On-Site Delivery
The machine features an integrated, mobile design suitable for direct trailer transport. It supports a "production line follows the project" model, allowing for on-site product manufacturing; this eliminates the risk of panel damage during long-distance logistics and saves on warehousing and secondary transport costs.
Applications
- Steel Structure Factories and Warehouses: Used for factory roofing (often using the larger-span 836 arc tile) and wall cladding (often using the 686 profile tile).
- Urban and Rural Infrastructure & Civil Buildings: Arch Double Layer Roll Forming Machine are suitable for roofing and canopy construction for various commercial storefronts, exhibition halls, markets, etc.
- On-site Mobile Construction Projects: The equipment's compact design facilitates easy transport and relocation.
Company Advantages

We are located in the Botou cold-roll forming machinery industrial hub, benefiting from a mature supply chain and controlled procurement costs. Core components are manufactured in-house. With a monthly capacity of 10–15 units, economies of scale help reduce the cost per unit. For equivalent specifications, the equipment is typically priced 10%–20% below the industry average, without compromising on configuration.
FAQ
Q: Is switching between the upper and lower layers troublesome? Does it require an electrician to rewire?
A: The switch is very simple and requires no electrician. The equipment comes standard with a PLC control system featuring a dedicated "Upper/Lower Layer Switch" knob on the operation panel. The worker simply turns the knob to automatically switch the corresponding motor and shearing system. Switching from the upper 686 profile to the lower 836 profile takes only seconds and can be mastered by ordinary personnel with minimal training.
Q: Can the panels produced by the Arch Double Layer Roll Forming Machine be used immediately? Are purlins required?
A: No, they are not required. The arched panels possess inherent structural strength; once formed, they can serve directly as a beam-free arched roof without the need for supporting structures like purlins or trusses. This is a key advantage of arched roofing: it saves materials and labor while enabling rapid construction.
Q: Does installing the arched roof require special tools or techniques?
A: The arched panels utilize a seaming connection method; adjacent panels are locked together using a seaming machine, eliminating the need for welding or nailing. Installation is fast, typically reducing construction time by over 30% compared to traditional purlin-supported roofing.
Q: Can the arching function be tested before shipment? Can I see the finished arched product?
A: Yes. Once the equipment is manufactured, we conduct trial runs using the client's specified coil material to produce both straight panels and arched sections. We record videos and photograph the finished products; the machine is disassembled and packed for shipment only after the client is satisfied.
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