Delivery time: 45 working days.
Payment method: TT, 40% deposit, and the remaining balance shall be paid before delivery.
Warranty period: one year from the date when the machine leaves the factory.
Voltage: It can be customized according to the local standard industrial voltage of customers.
Hebei Xinnuo Roll Forming Machinery Co., Ltd. (XINNUO) has built cold roll forming and roof panel equipment for more than 30 years in Botou, Hebei, China, with an annual output of over 3,000 sets and exports to more than 140 countries and regions. The hydraulic roof panel curving machine is a dedicated arch bending unit that curves pre-formed trapezoidal and corrugated metal roofing panels into smooth, uniform arcs for arched roofs, warehouses, workshops and stadium projects.





Powerful hydraulic drive provides strong and stable forming force, ensuring smooth and reliable arching of metal roofing panels through three synchronized roller systems. Precise arc forming delivers consistent curvature and an accurate radius, producing high-quality curved roofing panels with a professional finish. The adjustable curvature lets operators change forming parameters for different roof designs, so the same machine can produce panels with various arc radii — a production-proven range of 3 m to 30 m with custom options available. The machine is suitable for different roof profiles and can be configured for compatible trapezoidal, corrugated and other metal roofing profiles according to customer requirements. Stable and uniform forming comes from multiple forming rollers that distribute pressure evenly, reducing panel deformation and ensuring a consistent finished curve from the first panel to the last. Efficient production completes the hydraulic-powered cycle fast and continuously, helping manufacturers improve productivity and meet large-volume orders.
The curving unit works with panels produced on our Trapezoidal Sheet Roll Forming Machine and other forming lines — browse the Roof Sheet Making Machine category for matching equipment. Send us your panel width, profile drawing and required arc radius, and our engineers will confirm the roller configuration, frame grade and voltage (380 V/50 Hz standard, or customized 220 V/60 Hz, 415 V/50 Hz and 440 V/60 Hz) for your project.
| Parameter | Specification |
|---|---|
| Machine type | Hydraulic roof panel curving machine (arch bending unit) |
| Forming method | Hydraulic three-roller arch pressing |
| Roller rows | 3 rows |
| Main frame | 350H welded steel (heavy-duty grade available) |
| Middle plate thickness | 14 – 20 mm |
| Shaft diameter | Φ70 – Φ80 mm |
| Drive system | Gear internal drive + 63 hydraulic motor / large hydraulic motor |
| Arc radius | 3 – 30 m standard (2 – 50 m+ custom) |
| Profile compatibility | Trapezoidal, corrugated and other metal roofing profiles (custom) |
| Feed panel width | Customizable per customer requirement |
| Power supply | 380 V / 50 Hz standard; 220 V / 60 Hz, 415 V / 50 Hz, 440 V / 60 Hz optional |
| Customization | Profile per drawings, arc radius, frame grade, voltage |
| Warranty | 1 year |
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