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Fire Damper Blade Roll Forming Line
Table of Contents
- Definition
- Process outline
- Technical parameters
- Cut and hole station
- Related machines
- Applications
- Inquiry checklist
- Buyer FAQ
1. Definition
A fire damper blade roll forming line produces HVAC fire / smoke damper blade profiles from coil. Typical market blade lines (triple-V, airfoil, VCD blade) share the same idea: decoil, form, cut, and often punch end holes for linkage.
This reference adds a five-roll straightener and a stop cut that also draws one center hole (~6 mm) at each end for self-tapping screws. Profile geometry follows the CAD drawing. Not a damper frame line, not a full auto duct-box folder, and not a generic C/Z structural mill.
2. Process outline
- Decoil (~3 t passive class)
- Guide and pinch feed
- Roll form (~14 changeable stands)
- Five-roll straighten (2 upper / 3 lower)
- Stop length cut + drawn hole at each end center
- Exit table (~1.5 m × 2)
3. Technical parameters
| Item | Reference |
|---|---|
| Speed | ~0–15 m/min |
| Main / hydraulic | ~11 kW / ~4 kW (gear pump) |
| Stands / shaft | ~14 changeable stands; shaft ~φ70; rollers GCr15 QT + chrome |
| Drive / control | Spur gear (45# teeth QT); PLC + HMI + servo length/hole |
| Cut / punch | Stop cut + end drawn holes; scrap at cut; hole/length tol. ~±0.30 mm; blades Cr12 |
| Material | Q235 galvanized ~1.8 mm |
| Decoiler / exit | ~3 t passive decoiler; exit table ~1.5 m × 2 |
Do not paste frame-line punch speed (~0–6 m/min) or frame main ~7.5 kW into this table. Market blade kW/thickness bands stay as industry context only.
4. Cut and hole station
The reference cut station stops for length, shears the blade, and draws ~6 mm center holes at both ends for screw assembly. Hole map and linkage style must match the damper drawing — do not invent extra punch patterns from frame-line multi-punch layouts.
5. Related machines
- Damper frame line — casing members; multi hyd punch before form; different speed/power
- Full auto duct-box / housing folders — fold complete boxes; not this blade mill
- C/Z structural mills — construction sections; not HVAC damper vanes
6. Applications
- Fire damper / smoke damper blade sections for HVAC assemblies
- VCD blade profiles when the drawing matches this tooling path
7. Inquiry checklist
- Blade CAD (V / airfoil / flat) and end-hole map
- GI thickness and strip width
- Length range and tolerance
- Confirm blade vs frame vs folding scope
8. Buyer FAQ
Same machine as the frame line?
No. Blade and frame are different damper-pack lines — keep parameters separate.
Is the drawn hole optional?
The reference cut station draws ~6 mm center holes at both ends for screw assembly; confirm hole map on the drawing.
Can I use frame 0–6 m/min here?
No. That punch-band belongs to the frame line. Blade reference forms up to ~15 m/min.
Is straightener included?
Yes in the reference process — five-roll straighten after forming, before stop cut.
Final ratings follow the named proposal. Price and lead time are out of scope.