Typical Process Flow of a Roller Shutter Slat Line

1. Definition

This page is a process map for roller shutter slat production. It covers the common single-layer route and calls out PU double-layer extra stages. Speeds and thickness stay on the slat overview, thickness-tier, and PU pages — this page does not invent new public ratings.

2. Process and applications

2.1 Single-layer route

1. Uncoiling — coil loading; uncoiler/leveler may ship with the line or separately
2. Feeding and leveling — guide strip into the forming section
3. Roll forming — multiple passes form the slat profile
4. Hydraulic cut-to-length — length cutting; punching can run in sync
5. Exit / stacking — simple exit table or automatic stacking by configuration

2.2 PU double-layer extras

Besides forming and cutting, PU setups usually add foaming, heating, reshaping, and tracking cut-off. If the buyer needs foamed double-layer slats, communicate that flow explicitly instead of assuming a single-layer process.

Applications. Continuous curtain-slat production for commercial and industrial shutters. Guides, boxes, bottoms, and octagon tubes are separate machines in a full project.

3. Reference checkpoints (not a new rating sheet)

4. Conflicts and open items

• Assuming PU on every slat line — Foam stages are not default.
• Borrowing another tier’s speed — Do not reuse European ~25 or PU ~8–10 as the English 0–20 answer without labeling.
• Guide rails as “steps on the slat host” — They are separate machines.

5. Boundaries (related machines)

• Frame process flow — Punching is commonly standard before form.
• Guide / box lines — Separate process maps and power tiers.
• Garage continuous foaming — Not the PU slat extra-stage list.

6. Buyer FAQ

Where do guide rails fit in this flow?

They do not. Guides/boxes are separate section machines — not a station on the slat host.

Is optional punching the same as frame hinge/lock punching?

No. Slat punching (when present) follows the slat drawing; frame hinge/lock punching is a different hole family.

Do PU extras change the cut method?

Often yes — tracking / flying-saw cut appears on PU wording instead of only stop-cut hydraulic shear. Confirm on the PU proposal.

Can I invent stand counts from this page?

No. Pass counts and kW belong on the named ROLL-DOOR parameter pages.