> **Shrnutí**
>
> An aluminum packing machine has to protect a soft, bright, non-magnetic metal that marks easily and stains when moisture is trapped against it. For aluminum coils our horizontal eye-through wrapper lays the coil flat on a roller table, supports its full face and wraps it through the eye. The FPC-300 takes coils of 10–1,000 kg, OD 700–1,200 mm and width 10–300 mm, with a ring speed of 5–100 r/min.
On this line, a narrow coil lies flat on yellow rollers while the ring wraps it in white material through the eye. The wrapped coil then runs out on a powered roller conveyor past a label station, and finished coils are placed on wooden bearers.
Obsah
- Why aluminum needs different packing
- The technology: horizontal eye-through wrapping
- Best practices for aluminum coils
- FPC-300 data
- Worked example: an aluminum slit coil
- Kontrolní seznam pro výběr
- Bezpečnost: EN 415-10 a ISO 12100
- Často kladené otázky k inženýrství
- Další krok
- Související čtení
- Zdroje
Why aluminum needs different packing
Aluminum differs from steel in four ways that change the packing machine.
| Property | Effect on packing | Machine answer |
| :--- | :--- | :--- |
| Soft surface | Rollers, clamps and forks leave marks | Coil supported flat; covered rollers and friction wheels |
| Bright finish | Scratches and fingerprints are visible defects | Wrap applied without hand contact |
| Not magnetic | Magnet heads cannot lift or stack it | Vacuum head or gripper arm for stacking |
| Light for its size | More coils per pallet for the same weight | Stacking pattern set by height, not only weight |
Trapped moisture is the other risk. Water held between turns or under a loose wrap leaves stains on the surface. A tight, fully overlapped wrap applied to a dry coil keeps moisture out.
The technology: horizontal eye-through wrapping
The coil lies flat, eye-vertical, on a roller table. The ring passes through the eye and turns, laying film, paper or woven belt around the coil section, while the rollers turn the coil so each pass covers the next band. Ring height adjusts automatically or manually to the coil OD, and the ring runs on polyurethane friction wheels.
Lying flat matters for aluminum. The full bottom face is supported, so a thin, narrow coil does not bend or deform while it turns. The same horizontal design wraps strip as narrow as 8 mm.
Best practices for aluminum coils
1. **Wrap dry.** Pack only dry coils, so no water is sealed in.
2. **Overlap fully.** Set the overlap so there are no gaps at the outer face, where bands spread furthest apart.
3. **Seal the tail.** Automatic tail sealing by tape or heat leaves no loose end to catch and tear.
4. **Tape the OD.** Automatic taping round the coil OD holds the outer turn before wrapping.
5. **Stack without magnets.** Use a vacuum head or gripper arm, and place coils on bearers so forks do not touch the metal.
FPC-300 data
| Item | FPC-300 |
| :--- | :--- |
| Hmotnost svitku | 10–4 000 kg |
| Šířka svitku | 10–300 mm |
| Coil OD | 700–1,200 mm |
| Coil ID | 400–900 mm |
| OD minus ID | < 600 mm |
| Roller speed | 2–4 m/min |
| Ring speed | 5–100 r/min |
| Supply | 380 V 50/60 Hz 3 ph |
| Material | woven belt, paper, stretch film; roll ID 50/76 mm, OD 150–450 mm, width 90–120 mm |
Worked example: an aluminum slit coil
Take an aluminum coil with OD 1,000 mm, ID 508 mm and width 200 mm, wrapped with 100 mm film at 50% overlap. Aluminum density is 2,700 kg/m³.
| Krok | Výpočet | Výsledek |
| :--- | :--- | :--- |
| Face area | π/4 × (1.0² − 0.508²) | 0.583 m² |
| Volume | 0.583 × 0.20 | 0.117 m³ |
| Aluminum weight | 0.117 × 2,700 | about 315 kg |
| Same coil in steel | 0.117 × 7,850 | about 915 kg |
| Fits FPC-300? | 10–1,000 kg; OD 700–1,200; ID 400–900; OD − ID = 492 < 600 | yes |
| Outer circumference | π × 1,000 | about 3,142 mm |
| Ring turns | 3,142 ÷ 50 | about 63 |
| Coil surface speed at 60 r/min | 50 mm × 60 | 3 m/min, inside 2–4 m/min |
| Wrap time | 63 ÷ 60 | about 63 s |
**Line output.** On a complete slit coil line with wrapping, labelling and stacking, our rating is 20–40 coils per hour for narrow coils, so the 63 s wrap fits inside a 90–180 s line cycle. The label is printed and applied on the exit conveyor before stacking.
**Result.** The aluminum coil weighs about a third of the same steel coil, so a pallet carries more coils before reaching its weight limit. The ring and roller speeds both sit inside the FPC-300 ranges at 60 r/min.
Kontrolní seznam pro výběr
1. Alloy, temper and surface finish.
2. Coil weight, OD, ID and width.
3. Wrap material: stretch film, paper or woven belt.
4. Taping, tail sealing and labelling needs.
5. Stacking method and pallet or bearer layout.
6. Coils per hour and line connections.
Bezpečnost: EN 415-10 a ISO 12100
The coil wrapper and its line integration are built to EN 415-10, the general safety requirements for packaging machines, with the risk assessment done to ISO 12100. Guard fencing closes the ring zone, and coils are positioned before the cycle starts.
Často kladené otázky k inženýrství
Q: Why not stand the aluminum coil upright to wrap it?
A: An upright coil rests on a short arc of the rollers. A flat coil is supported over its full face, so a soft or narrow coil does not deform.
Q: Can magnets stack aluminum coils?
A: No. Aluminum is not magnetic, so we use a vacuum head or a gripper arm.
Q: Is the film tail sealed automatically?
A: Yes, by taping or heat sealing after wrapping.
Q: What coil range does the FPC-300 take?
A: 10–1,000 kg, OD 700–1,200 mm, ID 400–900 mm and width 10–300 mm.
Další krok
1. **Send your aluminum coil sizes and surface finish** to info@fhopepack.com.
2. **We match** the wrapper, stacking and labelling.
3. **Odpovíme do 24 hodin** s návrhem a cenovou nabídkou.
Související čtení
- [Horizontal coil wrapper FPC-300 (product)](https://www.fhopepack.com/Copper-coil-packing-machine/FPC-300-Copper-coil-wrapper.html)
- [Slit coil handling and packaging line (product)](https://www.fhopepack.com/Automatic-Coil-Packing-Line/slit-coil-packing.html)
- [Linka na balení svitků s funkcí naklápění a stohování](https://www.fhopepack.com/videos/coil-packing-line-with-tilter-and-stacking-function/)
- [Automatic slitting coil packing line](https://www.fhopepack.com/videos/automatic-slitting-coil-packing-line/)
Zdroje
- FHOPE product pages: horizontal coil wrapper FPC-300; slit coil handling and packaging line
- FHOPE engineering replies on coil stacking methods
- EN 415-10; ISO 12100:2010
Naposledy zkontrolováno: 19. 10. 2026
