Guardrail Roll Forming Machine
Guardrail Roll Forming Machine — a heavy-duty continuous line that forms highway W beam (two-wave) and thrie beam (three-wave) guardrail panels from 2.5-4.0 mm steel coil, with in-line hydraulic punching and cutting. Built by Zhongtuo (ZTRFM) in two production-tested models, customized to your national standard and profile drawing.
What This Machine Produces
This line produces highway guardrail panels — the corrugated steel barrier profiles installed along roads, bridges and median dividers:
- W beam guardrail (two-wave) — the standard highway barrier profile, cover width 312 mm
- Thrie beam guardrail (three-wave) — higher-impact profile for bridges and medians
- Profiles are formed with pre-punched bolt slots and fixing holes, cut to length (e.g. 4320 mm ± 2 mm) and ready for installation
Available Machine Models
ZTRFM-GR2 — Two-Wave W Beam Guardrail Line
| Formed profile | W beam, two-wave highway guardrail |
| Applicable materials | Galvanized steel, cold rolled steel, carbon steel, Q235 |
| Material thickness | 2.5 – 4.0 mm |
| Feeding width | 490 mm |
| Finished cover width | 312 mm |
| Finished profile height | 90 mm |
| Forming stations | 15 fixed driven stations |
| Main motor power | 22 kW × 2 |
| Forming speed | 15 – 20 m/min |
| Length accuracy | 4320 mm ± 2 mm |
| Roller material | GCr15 bearing steel, HRC55-60 |
| Punching & cutting | Hydraulic in-line punching and cut; length/quantity presets |
| Decoiler | Hydraulic type, 10 t loading capacity, coil ID 508 mm |
| Control system | Siemens PLC + Siemens frequency inverter, touch screen (EN/CN) |
| Certification | CE, ISO9001 |
ZTRFM-GR3 — Three-Wave Thrie Beam Guardrail Line
| Formed profile | Thrie beam, three-wave guardrail |
| Formed material | PPGI / GI / AI (customized) |
| Forming stations | 16 rows (as required) |
| Shaft diameter | φ95 mm |
| Roller material | 45# steel with tempering |
| Machine frame | 400 H steel; gearbox transmission drive |
| Cutting | Automatic, Cr12 quenched cutter (HRC60-62) |
| Motor power | 30 kW, Siemens brand |
| Forming speed | 25 m/min (depends on profile and thickness) |
| Voltage | 380V 50Hz 3-phase (as required) |
| Machine dimension (L×W×H) | 18,500 × 1,200 × 1,500 mm |
| Weight | 15 t |
| Control | PLC automatic — batch, length and quantity presets; multi-language screen |
| Decoiler | Hydraulic automatic decoiler (manual decoiler included free) |
| Certification | CE, ISO9001 |
Two production-tested models are available. Tell us your national standard and target market — we will confirm the correct configuration.
Production Workflow
- Decoiler — 10 t hydraulic coil holder (manual decoiler included with GR3)
- Leveling — strip straightening before forming
- Hydraulic punching — bolt slots and fixing holes formed in-line
- Roll forming — 15 (GR2) / 16 (GR3) stations form the W or thrie beam profile
- Cutting — automatic cut at preset length (e.g. 4320 mm ± 2 mm) and batch quantity
- Output — panels stacked and ready for packing
Key Components
- Hydraulic decoiler — 10 t capacity, coil ID 508 mm
- Leveling unit — straightens high-strength strip
- Hydraulic punching press — in-line bolt slot and hole forming
- Forming stations — GCr15 rollers HRC55-60 (GR2) / 45# tempered rollers on φ95 shafts (GR3)
- Automatic cutter — Cr12 quenched (HRC60-62), length and quantity presets
- Siemens PLC + frequency inverter — touch screen, EN/CN languages
Applications
- Highway and expressway barriers — mainline W beam guardrail
- Bridges and medians — higher-impact thrie beam sections
- Road construction contractors — on-demand barrier panel production
- Government infrastructure projects — national-standard compliant panels
Customization
Guardrail standards vary by market. Both models are configured to your national standard and profile drawing — roller sets, punching layout, cutting length and decoiler type. OEM/ODM service available.
Send us your guardrail profile drawing and standard — we will confirm the correct model (GR2 / GR3), punching program and line configuration.
Related Machines
- Two-wave W beam guardrail machine (GR2) - 15-20 m/min, 4320 mm panels
- Three-wave thrie beam guardrail machine (GR3) - 25 m/min, 15 t heavy-duty
- C & Z purlin roll forming machine — steel structure purlins
- Solar strut channel machine — PV mounting channels
- Steel coil slitting line — coil width processing upstream
- View all ZTRFM roll forming machines
FAQ
What is a guardrail roll forming machine?
It is a continuous roll forming line that produces highway guardrail panels — W beam and thrie beam profiles — from steel coil, with in-line punching and cutting.
What profiles can this machine produce?
Two models are available: the GR2 two-wave W beam line (312 mm cover width) and the GR3 three-wave thrie beam line. Both are customized to your national standard.
What material thickness does it process?
2.5-4.0 mm steel strip — galvanized steel, cold rolled steel, carbon steel or Q235 (GR2); PPGI/GI/AI (GR3, customizable).
How fast is the line?
GR2 runs at 15-20 m/min with 22 kW × 2 motors; GR3 runs at 25 m/min with a 30 kW Siemens motor. Speed depends on profile and material thickness.
Does the line punch holes automatically?
Yes — hydraulic in-line punching forms bolt slots and fixing holes before cutting, with length and quantity presets (e.g. 4320 mm ± 2 mm panel length).
What is the minimum order quantity?
The MOQ is 1 set. Every machine ships with a machinery test report and video outgoing inspection.
Can the machine be customized for my national standard?
Yes. Roller sets, punching programs, cutting length and decoiler configuration are set to your standard and profile drawing, with OEM/ODM service available.
Request a Quote — Contact Zhongtuo (ZTRFM) for pricing, configuration and delivery. Tel/WhatsApp: +86 131 6656 7923 · Email: steven@zt-rfm.com