Highway Guardrail Roll Forming Machine
Contact: Elise
Tel:+86-155 3281 7581
Email: elise@tgrfm.cn
Description
A Highway Guardrail Roll Forming Machine is a specialized automated production line that manufactures metal safety barriers (guardrails) installed along roads and highways to prevent vehicles from veering off the roadway . These machines transform flat steel coils into finished guardrail profiles through a continuous cold roll forming process.
The machine produces the corrugated steel beams that form the backbone of roadway safety systems. These are typically classified by their wave pattern:
| Guardrail Type | Description | Common Application |
|---|---|---|
| Two-Wave (W-Beam) | The most common profile, shaped with two symmetrical waves | Standard highway and rural road applications |
| Three-Wave (Thrie-Beam) | A taller profile with three waves for higher impact resistance | High-risk areas, median barriers, bridge transitions |
Typical finished guardrail panels are produced in standard lengths such as 4320mm (approximately 14 feet) to match installation specifications .
A complete guardrail roll forming line is an integrated system of sequential stations working in harmony :
| Stage | Function | Key Details |
|---|---|---|
| 1. Decoiling | Holds and feeds the steel coil into the line | Hydraulic or manual uncoiler; capacity 5–10 tons; coil inner diameter ~508mm |
| 2. Leveling | Flattens the strip for consistent forming | 7–9 roller leveler; rollers of 40Cr steel (HRC 48–52°); ensures material is perfectly flat |
| 3. Punching | Creates bolt holes and notches for field assembly | Hydraulic press (250–400 ton); punching die material Cr12MoV alloy steel; precise hole placement for easy installation |
| 4. Roll Forming | The core process—progressive bending through rollers | 11–17 forming stations; rollers of GCr15 steel (hardened to HRC 58–62°); shaft diameters 80–100mm |
| 5. Cutting | Shears finished guardrails to exact length | Hydraulic flying or stop cutter; length tolerance ±1–3mm; controlled by PLC with encoder |
| 6. Control System | Manages entire production sequence | PLC with touchscreen (brands like Siemens, Mitsubishi, Panasonic); stores multiple production programs |
| 7. Stacking | Collects finished products | Manual or automatic receiving tables; optional automatic stacking systems |
In essence, a Highway Guardrail Roll Forming Machine is the manufacturing backbone of roadway safety infrastructure—transforming flat steel coils into the precision-engineered, crash-tested barriers that protect drivers on highways worldwide.
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