Rain / K-style mill
Rain / K-style mill
~10–12 m/min; main ~4.0 kW + hyd ~3.0 kW; shaft ~φ70; ~18 passes; ~0.3–0.7 mm
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Process Library · Bending / Curving / Press Brake
Gutter Folding Machine Line
Coil mills roll continuously. Long folders clamp and flip blanks. Search dumps both here. Folder cycle time is not rain-mill metres per minute.
What this process looks like
Coil mills roll continuously. Long folders clamp and flip blanks. Search dumps both here. Folder cycle time is not rain-mill metres per minute.
Half-round 6″
Half-round 6″
~3–8 m/min; ~5.5+3 kW; φ50
Combo crate
Combo crate
Gutter + downpipe + bend/neck; 0.3–0.8 mm; feed 312 mm; 3 t manual; 380 V / 60 Hz. Downpipe on that sheet 22 st Ø75, 20 m/min, 7.5+5.5 kW
Specifications
| Rain / K-style mill | ~10–12 m/min; main ~4.0 kW + hyd ~3.0 kW; shaft ~φ70; ~18 passes; ~0.3–0.7 mm |
|---|---|
| Half-round 6″ | ~3–8 m/min; ~5.5+3 kW; φ50 |
| Combo crate | Gutter + downpipe + bend/neck; 0.3–0.8 mm; feed 312 mm; 3 t manual; 380 V / 60 Hz. Downpipe on that sheet 22 st Ø75, 20 m/min, 7.5+5.5 kW |
| 8 m CNC folder + slitter | Fold length ~8000 mm; max ~125°; steel ~1.5 mm (≤250 MPa); Al ~2.0; SS ~1.0; slit ~0.8 m/s; hyd ~7.5 kW; total ~8 kW; cycle ~12 s |
| 3 m neighbour | 3 m hyd brake, PPGI/GI ≤2 mm — shorter flashings |
Operation steps
If the job is volume coil
If the job is volume coil
Decoil, form the K, hyd cut. First-off is the trough vs CAD, not a folder 125° coupon.
If the job is long blank work
If the job is long blank work
Slit the blank. Fold to the recipe. Cycle time ~12 s is that sheet, not mill speed. 7.5 kW is clamp-and-flip, not rain hyd ~3 kW.
6 m and 8 m stay separate
6 m and 8 m stay separate
3 m hyd brake is shorter flashings. 200T×4000 folder ~15 kW vs 6×4000 NC shear ~7.5 kW are two machines.
Combo gutter + downpipe
Combo gutter + downpipe
312 mm feed, 380 V / 60 Hz. Downpipe flower on that sheet is not the gutter flower.
What's included
This line
This page: How to choose rain mill versus 8 m folder for a K trough.
Standard build
Sister lines: Gutter + downpipe mill, gutter cover, downpipe reducer, elbow bender.
Key details
Coil mill vs folder
10–12 m/min does not belong on the 8 m cycle.
Note 2
6 m vs 8 m vs 3 m — Three crates. Name the bed length on the tag.
Trough vs 125° flange
First-off matches the process you actually ran.
FAQ
Should I buy a mill or a folder for K-style gutter?
Volume coil work is a rain mill at about 10–12 m/min. Long custom lengths are an 8 m CNC folder with a ~12 s cycle.
Can mill speed sit on the folder?
10–12 m/min is the rain mill. The folder is clamp-and-flip, about 12 s per piece, hyd ~7.5 kW / total ~8 kW.
How are price and lead time quoted?
Send whether the job is coil volume or long blanks, length, thickness and site voltage. Commercial terms come back on the offer.
Related processes
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