

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.
Source documents conflict on thickness bands (examples: 2.5–3 / 2.5–4 / 3–4 mm). No single band is published here — gauge, yield and coating are locked on the contract drawing 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.
Documents conflict (2.5–3 / 2.5–4 / 3–4). Thickness stays on the contract drawing.
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 varies by contract — use the drawing.