Modern rainwater drainage systems require durable and accurately formed downpipes to efficiently direct water away from buildings. Our Round Downspout Roll Forming Machine is specifically designed to manufacture high-quality 101mm and 95mm round downspouts from galvanized steel, aluminum, and other coated metal coils. Equipped with a hydraulic cutting system and optional elbow forming unit, this production line provides a complete solution for residential, commercial, and industrial gutter systems.
Round Rainwater Pipes
This machine continuously converts metal coils into finished round downspouts through a fully automated process. From decoiling and guiding to roll forming and hydraulic cutting, every stage is synchronized through a PLC control system to ensure stable operation and accurate dimensions.
The machine can produce both 101mm and 95mm diameter round downpipes, allowing manufacturers to meet different market requirements without sacrificing productivity. As a result, users benefit from reduced labor costs, improved consistency, and higher production efficiency.
Furthermore, the hydraulic cutting system delivers clean and precise cuts without deforming the pipe profile, helping maintain a professional finish throughout production.
Durable Roll Forming System for Long-Term Performance
The forming section is built with precision-machined rollers manufactured from heat-treated 45# steel and protected by chrome coating. This combination significantly improves wear resistance and extends roller service life.
At the same time, the heavy-duty machine frame and robust transmission system ensure stable operation even during continuous production. Because of the accurate roller design, the finished downspouts feature smooth surfaces, consistent diameters, and tight dimensional tolerances.
In addition, the PLC control system allows operators to easily adjust production parameters, monitor machine status, and manage cutting lengths directly from the touchscreen interface.
Advantages of Metal Downspout Systems
Compared with plastic drainage products, metal downspouts provide superior durability and long-term value.
Key benefits include:
- Excellent resistance to temperature fluctuations
- High structural strength and impact resistance
- Long service life with minimal maintenance
- Corrosion protection through galvanized or coated surfaces
- Recyclable material for environmentally friendly construction
- Professional architectural appearance
Because steel experiences minimal thermal expansion and contraction, the finished downspouts remain stable even under changing weather conditions. Consequently, building owners enjoy reliable water management for many years.
Technical Specifications
| Item | Specification |
|---|---|
| Finished Product | Round Downspout |
| Pipe Diameter | 75mm / 90mm |
| Material Thickness | 0.5–0.8mm |
| Suitable Material | Galvanized Steel, Aluminum, Color-Coated Steel |
| Yield Strength | Up to 235 MPa |
| Forming Stations | 20–22 Stations |
| Roller Shaft Diameter | 60–65mm |
| Roller Material | 45# Steel, Chrome Coated |
| Shaft Material | 45# Steel |
| Cutting Type | Hydraulic Cutting |
| Main Motor Power | 5.5–7.5KW |
| Hydraulic Power | 4KW |
| Production Speed | 6–12m/min |
| Control System | PLC with Frequency Converter |
| Machine Length | About 11–12m |
| Machine Weight | 5–7 Tons |
Optional Elbow Forming Unit for Complete Drainage Systems
Many construction projects require elbows and bends to connect gutters with vertical downpipes. Therefore, the production line can be equipped with an automatic elbow forming machine.
After the downspout is formed and cut, the elbow machine reshapes the pipe into various bending angles according to project requirements. This capability enables manufacturers to produce complete rainwater drainage components from a single production line.
As a result, customers can streamline production, reduce outsourcing costs, and improve delivery efficiency.
Applications and Complete Turnkey Solution
Round downspouts play an essential role in transferring rainwater from roof gutters to drainage systems. They are widely used in:
- Residential housing projects
- Commercial buildings
- Warehouses
- Industrial facilities
- Agricultural structures
- Public infrastructure projects
Before shipment, every machine undergoes installation, testing, and quality inspection. Therefore, customers can begin production shortly after connecting power and hydraulic systems. When required, our engineers can also provide on-site installation, training, and commissioning services.
With years of experience in manufacturing gutter machines, fascia cover machines, and downspout roll forming machines, we provide reliable equipment solutions tailored to the specific needs of customers worldwide.
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