Roofing Roll Forming Machine
The roof roll forming machine is a fully automatic, continuous cold‑roll forming system designed to convert color‑coated steel, galvanized sheet, or aluminum coils into precisely profiled metal roofing and wall cladding panels. Engineered for high‑speed efficiency and long‑term durability, it reliably delivers consistent structural quality across residential, commercial, and industrial projects.
Incorporating a complete line from decoiler to forming head and hydraulic cutting unit, the machine offers a one‑pass production workflow that reduces labor and eliminates post‑processing steps. It supports an extensive range of industry‑standard profiles — including trapezoidal, IBR, corrugated, and decorative glazed tile patterns — with optional customization to meet local market preferences and project specifications.
All units are built for export readiness: adaptable to your local voltage and frequency, CE‑certified, and backed by our ODM/OEM engineering support for any profile or color requirement. The machine also serves as a practical investment for steel roofing fabricators seeking to expand their production capacity or move into new regional markets.
Major Technical Specifications
| Specification | Standard Value |
|---|---|
| Raw Material | Prepainted steel coil (PPGI), galvanized (GI) sheet, aluminum coil |
| Material Thickness | *[e.g., 0.3mm – 0.8mm / 0.35mm – 0.85mm]* |
| Feeding Width | *[e.g., 914 – 1250mm]* |
| Effective Coverage Width | *[e.g., 760 / 820 / 850mm]* |
| Main Frame | Welded H‑section steel, stress relieved |
| Roller Material | GCr15 bearing steel, chrome plated; or 45# steel with heat treatment & hard chrome coating |
| Main Shaft Material & Diameter | 45# steel quenched & tempered / GCr15; φ70‑80mm |
| Forming Stations | *[e.g., 16 / 18 / 22 stations]* — tailored to profile complexity |
| Main Motor Power | *[e.g., 5.5kW / 7.5kW / 11kW]* |
| Forming Speed | *[e.g., 12‑16 m/min / 15‑20 m/min]* (Higher speed options available) |
| Cutting System | Hydraulic post‑cutting (stop‑cut) or flying shear |
| Cutting Blade Material | Cr12Mov, quenched to HRC58‑62° |
| Length Tolerance | ±1.0mm (±0.5mm with high‑precision encoder feedback) |
| Control System | PLC (Mitsubishi / Panasonic / Siemens / Delta) + HMI touch screen |
| Voltage / Frequency | 220V / 380V / 400V / 415V / 440V ±10%; 50Hz or 60Hz — fully customizable |
| Optional Functions | In‑line punching / notching, automatic stacking, auto‑centering uncoiler, remote diagnostic module, pre‑punching before forming, additional embossing device |
Optional Upgrades & Automation Add‑ons
Help customers choose different configurations based on their budget or production capacity:
Auto Decoiler – hydraulic expansion, with 5T / 7T / 10T capacity and braking system for safe and stable coil feeding
Platform & Run‑out Table – support for long finished panels (standard 6‑12 m, extendable)
In‑line Punching / Notching System – servo‑controlled hydraulic punching; programmable hole patterns; punching on web, flange, or embossing before final cut
Automatic Stacker – stacks finished sheets on a pallet, reducing manual labor
Touch Screen HMI Upgrade – multi‑language interface (English, Spanish, Arabic, French, Russian, etc.) and remote connection capable (e.g. TeamViewer or VNC)
Remote Diagnostics Module – enables quick troubleshooting via internet, reduces overseas downtime
Reliable Gearbox Drive – replaces standard chain transmission for extra durability and smooth operation under high load
Customized Painting & Logo – tailor machine color and emboss branding on the finished panels (OEM)
Key Components
| Component | Description | Why It Matters |
|---|---|---|
| Manual / Hydraulic Decoiler | Holds coil reel; passive uncoiling with manual tension or hydraulic expansion (for heavy loads) up to 10T weight capacity | Ensures consistent material feed without resistance and reduces downtime when changing coils |
| Feeding & Guiding Unit | Aligns strip before it enters roll forming section; anti‑offset rollers adjust manually | Prevents sidetracking and protects the costly roller forming dies from damage |
| Roll Forming Main Section | Progressive shaping through 16‑24 stations to create roof profiles | Forms complex longitudinal details without tearing or buckling the material surface; each adjacent station incrementally bends to design shape |
| Hydraulic Cutting Unit (Stop or Flying Cut) | Cuts panels to length, either by stopping the line or cutting on the fly | Stop cutting ensures highest precision (±0.5 mm), while flying cut allows faster continuous operation¶ |
| PLC Control Cabinet | Mitsubishi / Panasonic / Siemens / Delta touch screen control along with inverter, sensors and encoder for measuring length | Allows one‑touch change between product lengths; stores order quantity and auto‑stops when met; includes error diagnosis |
| Run‑out Conveyor Table | Passive roller table (6‑12 m) that supports profiled panels after cutting | Prevents long panels from dragging and bending before being collected |
| Pre‑punching / Notching Unit (Optional) | Punches rib‑matching holes or notches before the final profile stage; servo‑controlled pitch | Reduces secondary manual drilling; beneficial for matching rafters or assembly patterns |
| Hydraulic Oil Pump Station | Dedicated hydraulic power source ± drive unit for cutting and optional punching stations | Ensures constant cutting force and quick blade reaction without relying on line motor power |
| Automatic Stacker (Optional) | Collects and aligns finished panels onto a pallet with preset layer count | Reduces manual labor at the end of line and ensures safe unloading ～ |
Fully Automatic Workflow
Step‑by‑Step Description：
Coil Loading – steel coil placed on Manual or Hydraulic Decoiler; coil tip pulled out.
Feeding & Guiding – strip passes through guiding rollers to remove edge curl and align width.
Roll Forming (Core) – the strip runs through multi‑stand rollers; each stand progressively bends the metal into designed roofing profile.
In‑Line Punching (Optional) – servo hydraulic punch triggers holes at pre‑programmed positions while the strip is moving; hole patterns can be customized.
Length Measurement & Cut – encoder measures the moving length precisely; when target length reached, hydraulic blades cut the panel (stop‑cut or flying cut).
Output & Stack – cut sheets slide down run‑out table to stacking area (manual or automatic); the process repeats seamlessly without human intervention except for coil change.
Why Choose Us — Export‑Focused
15+ Years Export Expertise – Supplying roof roll forming machines, heavy purlin lines and auxiliary equipment to 40+ countries and regions. Our long export track record speaks for itself.
Heavy‑Duty Core Components – GCr15 chrome rollers (HRC58‑62°), 45# quenched shafts, H‑type steel frame — built for 24/7 continuous production.
One‑Stop Custom Engineering – Choose trapezoidal, IBR, corrugated, glazed tile or any complex shape. Our engineers design the full roller path schedule, from layout drawings to final profile inspection, all based on your samples or section drawings.
Ready for Your Local Market – Machine voltage/frequency completely adaptable. We provide multilingual manuals, electrical diagrams and installation video for smooth overseas commissioning. CE compliance or other certifications available upon request.
200% Pre‑Shipment Testing – Every machine is assembled, lubricated and undergoes a full test run before delivery. Modules forming, cutting length and on‑line punching are counter‑checked under load — a complete test protocol and video record is prepared for your review.
Long‑Term Spare Parts Support – Fast global dispatch of rollers, cutting blades, chain-sprockets and PLC spare parts. Most international deliveries complete within 3‑7 working days.
Overseas Engineer Dispatch & Installation – An experienced technician can be sent abroad to help finalize installation and train your on‑site team, ensuring a smooth hand‑over in the first week of production.
24/7 Troubleshooting & Remote Assistance – With WeChat, WhatsApp or TeamViewer support, our engineering team is ready to provide fast and clear diagnostic help to keep your line running with minimal downtime.
Applications
Frequently Asked Questions
What roofing sheet profiles can your machine produce?
Standard / heavy duty machine generates all popular profiles: trapezoidal, IBR panels (Inverted Box Rib), corrugated (wave) sheets, step tile and glazed tile styles. Other custom shapes can be designed based on your section drawings
Which raw material thickness range does the machine handle?
Standard material thickness: 0.3‑0.8 mm. This covers most common steel roofing coils (PPGI/galvanized). Custom heavy‑duty roller sets can be offered for thickness up to 1.2 mm or aluminum
What is the forming speed?
Standard speed is 12‑16 m/min. High‑speed versions can reach 20‑25 m/min. Actual line speed may vary depending on material thickness, hole punching frequency and cut length
How accurate is the cut length?
Length tolerance is ±1.0 mm with standard encoder + stop cut. For extra precise applications (±0.5 mm), we can install higher resolution encoder and servo cut → high precision control
Does the machine support in‑line punching?
Yes, hydraulic punching units can be added to the line before and/or after the forming section. Hole spacing is controlled via PLC‑to‑encoder for precise positioning (±1 mm)
Do you provide CE certification?
Yes, we provide CE, ISO and other export safety documentation based on your destination country customs requirements. The control panel and electrical devices follow the applicable standards
Can the machine be packed for sea freight?
Machines are packed with anti‑rust oil protection outer plastic film, wrapped and/or fixed inside strong multi‑layer wooden cases (fumigated and moisture‑proof), suitable for 40‑ft container shipping
Can the machine produce two different profiles?
Yes, one machine design can be arranged as a double layer system producing two profiles without significant extra floor space. It shares a single feeder but has two independent forming modules