Automated Roll Former For Custom Square Downspout Pipe
Hydraulic Cutting and Lock Edge System
![Automated roll forming machine for square downspout pipes]()
1. Overview
1.1 Production Line
This roll forming production line is designed for manufacturers of square downspout pipes for residential and commercial roofing. It delivers high-quality, embossed, lock-edged pipes with strong structural integrity.
1.2 Profile
The square downspout pipe is roll-formed from galvanized or coated steel (0.8-1.5mm thick), featuring uniform embossed ribs and a secure lock edge. Designed for water drainage applications in both residential and commercial settings.
| Material: |
Galvanized Steel / PPGI / Aluminum |
| Thickness: |
0.3-0.8mm |
| Yield strength: |
200 - 350 Mpa |
| Tensile stress: |
200 -350 Mpa |
1.3 Production Process
Flow Chart: Decoiler → Guide → Roll forming machine → Hydraulic cut → Out table
Steel coils are unrolled, guided into a chain-driven roll former with wall plate structure. Early forming stations emboss ribs to strengthen the pipe. Subsequent stations shape the square downspout with uniform lock edges. Hydraulic cutting ensures clean, burr-free sections.
1.4 Key Features
- Embossed ribs enhance structural strength and prevent deformation
- Chain-driven roll former ensures precise, consistent forming
- Wall plate structure increases machine rigidity and stability
- Hydraulic cutter provides burr-free, precise cutting
- Automated control reduces labor and increases efficiency
2. Technical Parameters
2.1 Decoiler
| Structure: |
Double-support |
![Double-support decoiler structure]() |
| Working Form: |
Manual, motorized, or hydraulic |
| Loading Capacity: |
5T/7T/10T, customizable |
| Coil Width: |
1250mm, customizable |
| Inner Diameter: |
Φ450 - Φ550 mm |
| Out Diameter: |
1500 mm |
| Model: |
DC-MU1 |
2.2 Optional Decoiler Upgrades
2.3 Guiding Device With Pre-Cut Broaching Shear
| Guiding Roller: |
Adjusts the coil feeding width |
![Guiding device]() |
| Pre-cut Broaching Shear: |
Cuts the steel coil before roll forming |
| Digital Display: |
Shows feeding width directly |
2.4 Roll Forming Machine
| Working Speed: |
Around 20 m/min |
![Roll forming machine]() |
| Structure: |
Wall panel type (Optional: Cast-iron stands or guide pillar) |
| Driving System: |
Chain system (Optional: Gearbox) |
| No. of Forming Stations: |
18 stands |
| Shaft Diameter: |
70mm solid shaft |
| Motor Power: |
5.5 Kw |
| Roller Material: |
45# steel polished and chromed HRC58-62° |
| Shaft Material: |
High grade 45# steel polished(CNC lathe) |
| Steel Coil Material: |
PPGI or GI |
| Steel Coil Thickness: |
0.25-0.8mm |
2.5 Optional Machine Covers
2.6 Cutter Specifications
| Power Type: |
Hydraulic (Optional: motor type) |
![Hydraulic cutter]() |
| Hydraulic Power: |
4-5.5Kw, customizable |
| Blade Material: |
Cr12 Mov |
| Hardness: |
With quenched treatment HRC 58 - 62° |
2.7 Product Collection Options
| Solution 1: |
Run-out table |
Power Type: |
Non-powered, mainly manual handling |
![Run-out table]() |
| Solution 2: |
Auto stacker |
Power Type: |
Motorized, 3Kw |
| Dimension: Length 4m, customizable |
Dimension: Length 4m-6m, customizable |
![Auto stacker]() |
2.8 PLC Control Cabinet
| PLC Brand: |
Delta, customizable |
Power Supply: |
380v, 50HZ, 3Phase |
![Hanging-arm control box]() |
| Encoder Brand: |
Omron, customizable |
Language: |
Multiple options available |
| Touch Screen: |
MCGS, customizable |
Operation type: |
Manual/auto two-type switch |
| Hanging Arm Type: Space-saving design |
Standing Type: Greater component integration |
![Standing control box]() |
2.9 Hydraulic Power Unit (HPU)
| Motor Power: |
5.5Kw |
![Hydraulic power unit]() |
| Oil Required: |
N32 or N46 hydraulic oil |
| Design: |
Fan cooling system included |
| Optional: |
Can be installed on or inside the roll former |
2.10 System Analysis
- Hydraulic Decoiler: Supports medium thickness steel coils up to 7 tons with smooth material feeding
- Guiding Device: Precisely aligns steel strip for accurate forming, adjustable for different widths
- Roll Former: Chain-driven for durable operation with protective covers
- Hydraulic Cutter: Provides clean, accurate cuts with reduced noise and vibration
- Run-out Table: Facilitates smooth product exit and integration with stacking systems
3. Production Line Components
| Component |
Quantity |
| Hydraulic Decoiler |
1 set |
| Roll Former |
1 set |
| Hydraulic Cutter |
1 set |
| Out Table |
2 sets |
| PLC Cabinet |
1 set |
| Hydraulic Station |
1 set |
4. Customization Options
This square downspout roll forming line can be customized with:
- Adjustable forming stations for different square dimensions
- Optional rib embossing patterns for extra reinforcement
- Lock edge variations for secure fitting
- Customized hydraulic cutting lengths
- Variable line speed settings for production optimization
