Volume
Roll the repeating profile
K-style and half-round troughs are mill products.
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Solution Library / Gutter & Downspout
Rainwater System Solution: Gutters, Elbows & Covers
A rainwater shop is a gutter mill plus fittings. Volume K-style or half-round runs on a roll former. Long flashings run on an 8 m folder. Elbows, leaf-guard covers and reducer pairs are auxiliary machines. The example below is the K-style mill.
Who it's for
Gutter contractors and building-product plants that sell K-style or half-round troughs, downpipes, elbows and leaf guards — and shops that fold long custom gutters instead of rolling them.
Long piece
Fold when the job is custom
An 8 m CNC folder is for long flashings, not the mill’s m/min.
Fittings
Elbows and covers are auxiliaries
A 2.2 kW elbow bender is not the gutter host.
How to choose a line
- Repeating K-style gutter from coil -> gutter mill (example below)
- 6″ half-round -> half-round mill (~3–8 m/min, ~5.5+3 kW, Φ50 on that quotation)
- Downpipe -> 22-stand Ø75 downpipe mill, 20 m/min, 7.5+5.5 kW on that quotation; combo 0.3–0.8 mm / 312 mm / 380 V / 60 Hz as its own quotation
- Elbows for downpipe -> ~2.2 kW, ~90° auxiliary on that quotation. Reducer pair is 0.45–0.5 mm, 380 V / 50 Hz on that quotation
- Leaf-guard / gutter cover -> 0.4–0.5 mm, 55 t punch, 13 stands 7.5 kW, ≥20 m/min, 240 V / 60 Hz on that quotation
- Long custom gutter or flashing -> 8 m CNC folder (~125°, steel ~1.5 mm, hyd ~7.5 / total ~8 kW, cycle ~12 s on that quotation)
- Box / square gutter -> send the drawing for a custom quotation
- Standing-seam or trapezoid roof sheet -> standing-seam or metal-roofing solution, a different family
Example specification
One delivered example. Final numbers follow your quotation.
| Product | K-style / rain-gutter mill |
|---|---|
| Speed / motors | ~10–12 m/min; ~4+3 kW; Φ70 |
| Neighbour (half-round) | ~3–8 m/min; ~5.5+3 kW; Φ50 — own quotation |
Line walkthrough
1Decoil
Decoil
Gutter strip
- Gutter strip
2Form trough
Form trough
K-style mill
- K-style mill
3Cut
Cut
Length on quote
- Length on quote
4Downpipe
Downpipe
Separate mill
- Separate mill
5Elbow / cover
Elbow / cover
Auxiliary machines
- Auxiliary machines
Equipment matching
| Step | Module | Guidance | Related |
|---|---|---|---|
| K-style trough | Gutter mill | ~10–12 m/min / ~4+3 kW / Φ70 | Gutter and downpipe |
| Half-round 6″ | Half-round mill | ~3–8 m/min / ~5.5+3 kW / Φ50 | Half-round mill |
| Elbow | Pipe bender auxiliary | ~2.2 kW / ~90° | Pipe bender auxiliary |
| Reducer pair | Necking pair | 0.45–0.5 mm / 380 V / 50 Hz | Necking pair |
| Leaf-guard cover | Punch + 13-stand mill | 55 t / 7.5 kW / ≥20 m/min / 240 V / 60 Hz | Punch + 13-stand mill |
| Long flashing | 8 m CNC folder | ~12 s cycle / hyd ~7.5 kW | 8 m CNC folder |
What's included
Mill vs folder choice, one K-style example, elbow / cover / downpipe / reducer as matching rows, and a quote checklist.
What to send for a quote
- K-style vs half-round vs box; coverage and lip drawing
- Whether volume is mill or long custom (folder)
- Downpipe OD and whether elbows / reducers ship as machines
- Leaf-guard: mesh opening and coating; 240 V / 60 Hz on the cover file
- Thickness window (cover 0.4–0.5 mm; reducer 0.45–0.5 mm)
- Site voltage / frequency
- Combo gutter+downpipe vs two hosts
Check before you quote
Folder
Folder cycle is seconds
The 8 m folder lists ~12 s per piece. Mill speed is m/min on the gutter quotation.
Elbow
Elbow is ~2.2 kW
It bends downpipe. It is not the K-style host.
Cover
Cover mill is 240 V / 60 Hz
55 t punch + 13 stands 7.5 kW live on that quotation.
FAQ
Is a gutter folding machine the same as a gutter mill?
Volume repeating troughs run on the mill. Long custom flashings run on the 8 m folder. Send which jobs you sell in year one.
Does the elbow machine make the gutter?
The ~2.2 kW unit bends downpipe elbows. The trough comes from the mill or the folder.
How are price and lead time quoted?
Send the quote checklist. Commercial terms come back on the offer.
Q&A for this solution
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