Typical Rain Gutter Line Process Flow

1. Definition

This page documents the typical process flow of a general rain-gutter / eaves-trough roll forming line. It organizes decoiling through exit for the rain-gutter baseline and notes how half-round and box siblings differ. Numeric host ratings still live on the N-entries.

Industry rain-gutter charts commonly show: Decoiler → Guide → Roll forming → Hydraulic cutter → Out table — the same spine as the documented FAQ wording.

2. Process steps

2.1 Rain-gutter baseline

1. 3T decoiling (manual decoiler cited)
2. Guiding / front shear
3. Chain-driven roll forming (about 18 passes on the baseline)
4. Hydraulic cut-to-length (Delta PLC class controls)
5. Manual catch / run-out table

2.2 Half-round sibling flow

1. Cantilever decoil (about 1–2 T / about 300 mm coil width on that quote)
2. Guide / front shear
3. Bidirectional chain forming (about 18 rows)
4. Hydraulic cut
5. Exit

2.3 Box-gutter note

Category is confirmed by drawing and video, but a complete machine process quotation is missing. Do not invent a boxed-in speed/power flow; wait for the technical proposal.

3. Ratings that ride with the flow

Applications. Continuous production of eaves troughs for roof drainage kits. Downpipe forming and elbow bending are outside this flow page.

4. Boundaries

• Do not insert a downpipe bender into the rain-gutter flow by default.
• Do not publish half-round 3–8 m/min as the rain-gutter default.
• Do not fill box-gutter empty cells from this rain-gutter chart.
• Whole-line envelope/mass for the rain baseline remains blocked when the source omits it.

5. Buyer FAQ

Is front shear always required?

It is part of the documented rain-gutter and half-round recommended wording. Confirm if a proposal omits it.

Why list three families on a rain-gutter flow page?

Because buyers often say “gutter line” without naming the profile. The table prevents silent parameter mixing.

Where do elbows fit?

They do not. See the downpipe flow and elbow-reducer Q-entry.