Heavy Duty Roll Forming Machine for 8.0mm Thick Steel Machine
This heavy-duty cold roll forming machine is specially designed for forming 8.0mm thick steel strips with high strength and strict dimensional accuracy.
The complete production line integrates hydraulic decoiling, precision leveling, shear & butt welding, roll forming, servo flying cold saw cutting, and automatic run-out system, ensuring continuous, stable, and efficient production.
It is widely used for structural steel profiles, heavy-duty channels, industrial frames, and construction support components in the European, Middle East, and North American markets.
1. Finished Product Technical Parameters
- Steel strip width: 300 mm
- Steel thickness: 8.0 mm
- Applicable materials:
- Q235 / Q355 cold rolled steel
- Hot-dip galvanized steel strip
- Production speed: 8–15 m/min
- Straightness tolerance: ≤ ±2 mm / 6000 mm
- Angle tolerance: ≤ ±2 / 6000 mm
- Length cutting tolerance: ±1.5 mm
- Profile design: According to customer-provided profile drawings
2. Production Line Configuration
| No. | Equipment | Specification | Qty | Motor Power |
|---|---|---|---|---|
| 1 | Hydraulic Decoiler | 10T hydraulic powered | 1 set | 10.5 kW |
| 2 | Leveling Machine | 300 model | 1 set | 30 kW |
| 3 | Shear & Butt Welder | 300 model | 1 set | — |
| 4 | Roll Forming Machine | 18 forming stations | 1 set | 110 kW |
| 5 | Servo Flying Cold Saw | Servo tracking cutting | 1 set | 30 kW |
| 6 | Automatic Run-out Table | 6 meters | 1 set | 2.2 kW |
| 7 | Control System | PLC control system | 1 set | — |
| 8 | Line Footprint | Length × Width | — | Approx. 34 × 4.5 m |
3. Production Process Flow
10T Hydraulic Decoiler → Leveling → Shear & Butt Welding → Feeding + Roll Forming + Straightening → Servo Flying Cold Saw Cutting → Automatic Run-out Table
This process enables continuous coil-to-length production, significantly improving efficiency and reducing material waste.
4. Main Equipment Description
4.1 10T Hydraulic Powered Decoiler
- Pneumatic pressing arm prevents coil loosening during rotation
- Double side guide plates keep the coil stable
- Rotary hydraulic expansion system ensures no slipping during operation
- Main shaft made of 40Cr steel for high durability
- 48 mm thick turntable prevents deformation under heavy load
- Reinforced pneumatic brake disc for safe emergency stopping
- Forward and reverse rotation for both decoiling and recoiling
4.2 Bridge Feeding + Leveling + Head Straightening Unit
- Hydraulic feeding, peeling head, and straightening system
- Gantry-type frame with high rigidity
- Five-roller leveling structure (upper 3, lower 4)
- Feed roller diameter: 152 mm (pneumatic lifting)
- Leveling roller diameter: 160 mm (hydraulic lifting)
- Roller shafts made of GCr15 bearing steel, hardness HRC 58–62
- Driven by 30 kW AC variable-speed motor
4.3 Shear & Butt Welding Machine (Model TH-300)
- Max strip width: ≤ 300 mm
- Max strip thickness: ≤ 8.0 mm
- Welding type: Butt welding with moving welding torch
- Cutting method: Hydraulic shearing with positioning device
- Welding method: Gas shielded welding
- Welding speed: 500–1500 mm/min
This unit allows fast coil joining, ensuring uninterrupted roll forming production.
4.4 Roll Forming Main Machine (18 Stations)
- Forming thickness: 8.0 mm
- Line speed: 8–15 m/min
- Main motor power: 110 kW
- Dual-driven powered feeding system
- Seven-roller pre-leveling unit (upper 3, lower 4)
- Machine stands made of integral cast steel (45#)
- Rollers made of Cr12MoV, heat-treated
- Main shaft diameter: 125 mm, 40Cr quenched and tempered
- Universal joint transmission with flange-connected gearboxes
- Frequency inverter: INOVANCE brand
- Bearings: Heavy-duty Harbin brand bearings
The machine frame is stress-relieved, shot-blasted, and precisely machined by a gantry machining center to guarantee long-term accuracy.
4.5 Servo Flying Cold Saw Cutting System
- Max cutting thickness: 8.0 mm
- Cutting material: Q235 / Q355
- Servo tracking motor: 30 kW
- Feeding servo motor: 4.4 kW
- Saw motor: 22 kW with frequency control
- Cutting speed: 10–20 m/min
- Blade type: High-speed steel (HSS)
- Clamping: Pneumatic
Ensures smooth, burr-free cutting without stopping the line.
4.6 Intelligent Run-out System
- Automatic roller table length: 6 meters
- Motor power: 2.2 kW
- Supports automatic conveying and stacking of finished profiles
4.7 Electrical Control System
- PLC centralized control system
- Touch screen HMI for easy operation
- Manual and automatic operation modes
- Digital length setting and adjustment
- Real-time monitoring of operating status and alarms
- Emergency stop buttons across the entire line for safety
5. Key Advantages
- Designed for an 8.0 mm heavy-gauge steel roll forming
- Continuous production with shear & butt welding
- High precision in straightness, angle, and cutting length
- Heavy-duty structure suitable for long-term industrial use
- Intelligent PLC control, easy operation, and maintenance
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