Why YX51-305-915 Open Deck Profile References Do Not Include Full Machine Specs

1. Bottom line

Profile knowledge is not a machine quote. YX51-305-915 sources describe open deck geometry and application notes. Machine-side speed, power, pass count, and auxiliaries are blocked in the available FAQ evidence. Suppliers who build deck mills likewise ask for a profile drawing (or sample) before issuing a tailored quotation — that is the correct next step.

2. What evidence supports today

• Effective coverage about 915 mm
• Wave height about 51 mm; three waves; pitch about 305 mm
• Coil width reference about 1200 mm in profile notes (market pages may cite ~1150 mm unfolded — treat as context, lock on proposal)
• Composite floor / multi-story steel application language

3. What is not established

4. Do not mix these

• Using 609–914 mm effective-width machine figures as if they automatically apply to this open profile reference
• Treating closed-600 (~30 passes, ~2×11 kW) as a default open-915 mill
• Publishing roof sheet parameters as a workaround

5. How to request a machine proposal

1. Attach the YX51-305-915 (or equivalent) drawing and thickness/material target.
2. State required length range, shear preference, and decoiler capacity needs.
3. Ask engineering to return speed, power, passes, and auxiliaries as a single confirmed set.

6. Buyer FAQ

Why won’t you just use the 914 machine numbers?

Because 914 is a different evidence pack (effective-width forming line). Similar coverage is not identity.

Is the profile page useless without machine data?

No — it prevents wrong-family quoting and sets the geometry the mill must hit.

When can public pages list speed for open 915?

Only after a named technical proposal (or equivalent machine evidence) documents it.