

W-beam guardrail machine · two wave guardrail · three wave Thrie beam · highway guardrail roll formingA W-beam (two-wave) or Thrie-beam (three-wave) guardrail mill forms highway crash-barrier sections with punch and cut for post holes and length. Search traffic often mixes this with fence-panel roll forming and with punch-only auxiliary lines. The flower, stand count and host class are different.
This page covers W2 and W3 host quotations from the recommended FAQ set. Swap-module mills that claim both waves on one frame are a different quote.
2-wave ≠ 3-wave. Wave count changes the section depth, stand count and often host power. Do not treat Thrie as a W2 recipe with an extra pass. If the tender allows either profile, ask for two labeled quotations or a documented swap-module package — not a verbal “same mill.”
On the recommended W2 (two-wave) quote:
| Item | On that W2 quotation |
|---|---|
| Forming speed | ~15 m/min |
| With punch / cut | ~10 m/min |
| Host | ~30 kW |
| Hydraulic | ~18.5 kW |
| Stands / drive | ~16 stands; gearbox drive |
| Line length / weight (class) | ~18.5 m / ~15 t |
On the recommended W3 (three-wave / Thrie) quote:
| Item | On that W3 quotation |
|---|---|
| Forming / with punch-cut | Same speed class as W2 — ~15 m/min form; ~10 m/min with punch/cut |
| Host | ~45 kW |
| Hydraulic | ~18.5 kW (same hyd class as W2 on that quote) |
| Stands | ~20 stands |
| Line length / weight (class) | ~20.5 m / ~15.5 t |
W3 is longer and slightly heavier than W2 on those quotations, with more stands and a larger host. Speed class and hyd ~18.5 kW align with the W2 recommended row; every number above is tied to its own wave count.
Typical W-beam strip thickness is about 2.5–4 mm, depending on wave profile and project specification. Final gauge, yield strength, and coating follow the project drawings and the named quotation.
Optional packages that appear beside the host (quote separately):
These are not implied by buying the W2 or W3 former alone.
Dedicated W2 and W3 are different quotes (~16 vs ~20 stands; ~30 vs ~45 kW host on recommended rows). A swap-module mill is a separate quotation — do not assume it from a W2 host order.
Typical bands fall around 2.5–4 mm; the final gauge follows the project drawings and applicable standards for each wave profile.
On the recommended quotes, both sit in the ~15 m/min form / ~10 m/min with punch-cut class. Host and stands still differ.
No. Fence panel and punch-only aux lines are out of this family.
Speeds, kW, stands, length and weight above come from the recommended W2 or W3 quotation. Thickness follows the project drawing and named quotation.