Master Steel Coil Stretch Wrapper dengan Kertas

Ringkasan Eksekutif Our master coil wrapper parks the coil on blocker roller stations while shuttles on a ring pass paper and stretch film through the coil eye. Shuttles can carry two or three material rolls, so one pass can lay an inner and an outer layer. Our stainless master coil design takes coils of 1,000–12,500 kg, and our cold-rolled design takes up to 30,000 kg.

Daftar Isi

How master coil wrapping works

The coil sits eye-horizontal on two blocker roller stations. The wrapping ring opens a path through the coil eye, and shuttles carrying the material rolls run around it, so each turn lays material over the outside, both faces and the bore. The roller stations turn the coil slowly, so the wraps step around the whole coil with overlap.

The operator enters the coil OD, ID and width, and the machine sets the other parameters. The wrapper moves left and right to position itself, and a motor adjusts the ring height to centre it on the coil.

In our video, the shuttles carry material through the coil eye on every turn of the ring while the rollers turn the coil, so each wrap overlaps the one before.

Master coil wrapper with orange ring between yellow blocker roller stations
Master coil wrapper. The coil rests on blocker roller stations while the ring wraps through the eye.

Paper and film layers

Master coils can be wrapped in VCI stretch film, paper, PP or PE. With shuttles that carry two or three rolls, we lay an inner layer and an outer layer in the same cycle.

Lapisan Bahan khas Pekerjaan
Batin paper or VCI film covers the steel surface
Luar stretch film or opaque film seals out dust and moisture

Our stainless master coil design wraps stretch film plus opaque film as two layers, from rolls with a 76 mm core, 100–250 mm OD and 200–250 mm width. A brake on the material release stops the material folding, and tension is adjustable.

Which design fits your coil

Parameter Stainless master coil wrapper Cold-rolled master coil wrapper
Lebar gulungan 500 – 1,800 mm 800 – 2,000 mm
coil OD 800 – 2,000 mm 1,000 – 2,100 mm
coil ID 500 – 600 mm 610 – 760 mm
berat coil 1,000–12,500 kg 2,000–30,000 kg
Shuttle speed about 2–3 m/s about 2–3 m/s
Tumpang tindih 20 – 90% 20 – 90%

Choose by ID and weight first. A coil with a 610 mm ID or heavier than 12,500 kg needs the cold-rolled design. The precise sizes are confirmed after design.

Planning wraps and material

Overlap is set at the outside diameter, where the wraps spread furthest apart. Illustrative example for a coil 1,800 mm OD, 600 mm ID and 1,200 mm wide, with 250 mm material at 50% overlap:

Langkah Perhitungan Hasil
Advance per wrap at OD 250 mm × 50% 125 mm
Wraps per layer π × 1,800 ÷ 125 tentang 45
Coil section perimeter 2 × (1,200 + 600) 3.6 m
Material per layer 45 × 3.6 m tentang 162 m

The section perimeter uses the 600 mm wall, half of 1,800 minus 600. Real roll use differs: stretching the film shortens the length drawn from the roll, while start and end wraps add to it, so we confirm it on trial.

Fitur otomatisasi

Fitur Stainless master coil wrapper
kontrol PLC dan HMI
Mode manual dan otomatis
Layanan antar jemput two, crossing the coil ID
positioning automatic left and right; sensors for trolley position
Tinggi cincin adjusted by motor to the coil OD
Bahan automatic cutting and feeding
Tumpang tindih set by inverter
Reset wrapping position reset

Fasilitas dan keselamatan

Kegunaan Stainless design Cold-rolled design
Daya sekitar 12 kW sekitar 15 kW
Sumber Daya listrik 380 V, three-phase five-wire 380 V, three-phase five-wire
Pasokan hidrolik 140 bar -
Pasokan udara 4–5 kgf/cm² -

The cold-rolled page does not state hydraulic or air supply, so we confirm them with your layout. Guardrails and soft start and stop protect the operator, and an alarm shows faults automatically. The standards that apply depend on the destination market. For CE markets, ISO 12100 sets the risk-assessment method and EN 415-10 sets general requirements for packaging machines.

Daftar periksa pemilihan untuk mesin pembungkus koil utama.

  • Diameter luar (OD), diameter dalam (ID), lebar, dan berat kumparan, dari terkecil hingga terbesar.
  • Inner and outer materials.
  • Jumlah lapisan.
  • Coil car or crane loading.
  • Jumlah kumparan yang dibutuhkan per shift.
  • Local power, hydraulic and air supply.

Pertanyaan yang Sering Diajukan (FAQ) tentang Teknik

Q: Can one pass lay paper and film? A: Yes. Shuttles can carry two or three rolls, so the inner and outer layers go on in the same cycle.

Q: How heavy a master coil can it wrap? A: Up to 12,500 kg on the stainless design and up to 30,000 kg on the cold-rolled design.

Q: What coil IDs fit? A: 500–600 mm on the stainless design and 610–760 mm on the cold-rolled design.

Q: How much material does one layer use? A: For an 1,800 mm OD coil at 50% overlap with 250 mm material, about 45 wraps and about 162 m.

Q: Does the operator set every parameter? A: No. The operator enters OD, ID and width, and the machine sets the rest.

Langkah selanjutnya

Kami merencanakan pembungkus koil utama Anda dalam tiga langkah:

  1. Kirimkan gambar tata letak Anda with your coil list and materials to info@fhopepack.com.
  2. Terima proposal dalam waktu 48 jam, with the design and layer plan.
  3. Pesan survei lokasi to plan coil loading.

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Terakhir ditinjau: 04-10-2026

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