JX Roll Forming provides Road Safety Guardrail Forming Solutions. The overview below covers profiles, specifications and selection logic.
A highway guardrail roll forming machine produces W-beam guardrail from 3.0–4.0 mm carbon steel at 3–4 pieces per minute, cut to 4320 mm. The line forms through 15 stations on a cast frame with Cr12MoV rolls, punches bolt holes on a press and runs on Delta PLC with Yaskawa inversion. More than 1000 lines have been built; delivery is 80 days.
| Item | Specification |
|---|---|
| Suitable material | Carbon steel coil |
| Coil thickness | 3.0–4.0 mm |
| Yield strength | 250–550 MPa |
| Tensile strength | G350–G550 |
| Nominal output | 3–4 pieces/min |
| Cutting length | 4320 mm per piece |
| Forming stations | 15 |
| Punching | Punch by press machine |
| Decoiler | Manual decoiler |
| Drive | Gearbox drive, Cr12MoV rolls, cast frame structure |
| Control | Delta PLC (Taiwan), Yaskawa inverter |
| Power supply | 380 V, 50 Hz, 3 phase |
Guardrail is a fixed-length product: the beam is cut at 4320 mm, so output is quoted as pieces rather than as metres of strip. That number is what a highway programme actually plans against — posts, bolts and installation crews are all scheduled per piece, not per metre.
The 3–4 pieces/min figure assumes the standard bolt hole pattern. Additional holes, slots or a different beam length move the output down, because each punching cycle stops the line.
The roll set is built to the beam section drawing you supply. Beam geometry, the depth of the corrugation and the position of the bolt holes are all fixed by the standard the guardrail has to meet, so the roll set is specified per project rather than taken from a single fixed range.
The forming line runs carbon steel coil. Galvanizing is a separate finishing step and is not part of this line.
An engineer can travel to your site for installation and commissioning. The line carries service for its working life, and quality problems not caused by operator error are handled under that commitment.
Q: What is the production speed?
A: 3–4 pieces per minute with a cutting length of 4320 mm per piece. Output depends on the bolt hole pattern.
Q: What coil thickness does the line run?
A: 3.0–4.0 mm carbon steel coil, yield strength 250–550 MPa.
Q: How many forming stations does it use?
A: 15 stations.
Q: What is the delivery time?
A: 80 days after contract confirmation.
Forms W-beam and Thrie-beam highway guardrail at 3-4 pieces/min with 4320mm cut length, fully automatic PLC control. 30+ years factory, OEM & custom available.
Tell us your profile, material, and production target — our engineering team will prepare a customized solution and quotation.
