Pemisah Magnetik untuk Pemulihan Material
A magnetic separator removes ferrous metal from plastic flakes, mixed waste, mining material, and other bulk streams before the metal damages crushers, granulators, extruders, or final sorting equipment.
- Captures tramp iron, steel pieces, screws, nails, wire, and other magnetic contamination from moving material streams.
- Protects downstream equipment while improving the purity and resale value of recovered material.
- Available as overband magnets, drum magnets, magnetic pulleys, and line-specific separation modules.
How a Magnetic Separator Works
A magnetic separator places a controlled magnetic field near the material flow. Ferrous metal responds to the magnetic force and separates from plastic, paper, glass, wood, minerals, or other non-magnetic material.
1. Material Feed
Material moves across a conveyor, chute, drum surface, or pulley. A consistent layer improves separation because the magnet can reach each particle more evenly.
2. Magnetic Capture
Iron and steel are attracted by the magnetic field while non-magnetic material continues along its normal path.
3. Separate Discharge
Captured metal is discharged into a separate collection point, reducing contamination and protecting downstream machines.
Jenis Pemisah Magnetik
The right magnetic separator depends on where the metal appears, how deep the material layer is, and whether you need manual or continuous discharge.
Pemisah Magnetik Lebar Atas
Installed above a conveyor belt.
Suitable for removing large ferrous contaminants from plastics, waste streams, wood, and aggregate before crushing or sorting.
Drum Magnet
Magnetic drum with continuous discharge.
Useful when material passes directly over the drum and the line needs automatic separation of ferrous pieces from dry bulk material.
Magnetic Pulley
Installed as the conveyor head pulley.
A compact choice for continuous ferrous separation at the end of a conveyor without adding a large overhead unit.
Pemisah Arus Eddy
For non-ferrous metals.
Used after ferrous removal when the line also needs to recover aluminum, copper, brass, and other conductive non-ferrous metals.
Aplikasi Utama
Magnetic separation supports both equipment protection and product purity in recycling and industrial material handling.
Daur Ulang Plastik
Removes screws, staples, wire, steel fragments, and tramp iron from PET, HDPE, PP, PE film, and rigid plastic recycling lines.
Waste Sorting
Recovers ferrous metal from municipal solid waste, RDF/SRF preparation, and mixed material recovery facilities.
Mining & Quarrying
Separates iron-bearing material and protects crushers, screens, and conveyors from unwanted metal contamination.
Manufaktur
Mengelola pemecah, pabrik, dan jalur produksi dengan menarik logam dari bahan mentah sebelum mencapai mesin.
Selection & Operating Factors
Good separation depends on more than magnet strength. The material flow and installation position matter just as much.
What to Check Before Selection
- Material type, bulk density, particle size, and moisture level.
- Expected ferrous contamination size, shape, and loading rate.
- Conveyor width, belt speed, burden depth, and installation height.
- Whether the plant needs manual cleaning, automatic discharge, or continuous operation.
Mengapa Itu Penting
In plastic recycling, a small steel fragment can damage crusher knives, screens, pelletizer components, or extruder screws. A properly placed magnetic separator reduces this risk before the metal reaches expensive downstream equipment.
For higher purity targets, magnetic separation is often used before density separation, air classification, optical sorting, or pelletizing.
Typical Technical Parameters
Final specifications depend on the separator type and the recycling line layout. These parameters are common discussion points during equipment selection.
| Parameter | Opsi Umum | Catatan Seleksi |
|---|---|---|
| Separator Type | Overband, drum, pulley, eddy current | Match the type to material flow, metal type, and discharge requirement. |
| Conveyor Width | Customized to line width | The magnetic zone should cover the full material stream. |
| Material Layer Depth | Low and evenly spread is preferred | Deep burden reduces capture performance, especially for small metal pieces. |
| Metode Pembersihan | Manual or automatic discharge | Automatic discharge is preferred for continuous and high-contamination lines. |
| Installation Position | Above conveyor, at discharge, or head pulley | Place the separator before sensitive machinery whenever possible. |
Peralatan Terkait
Build a cleaner recovery line by pairing magnetic separation with the right downstream sorting and recycling equipment.
Pertanyaan yang Sering Diajukan
Pasangnya sebelum pemecah, granulator, ekstruder, pengecilkan, atau peralatan pengurutan halus apabila logam ferum dapat merusak peralatan turun.
No. Separator magnet standar menghilangkan logam ferum seperti besi dan baja. Aluminium, kopper, dan perunggu biasanya memerlukan separator arus listrik.
Magnet overband umum digunakan di atas konveyor. Magnet drum dan pulley magnet berguna ketika layout memerlukan pengeluaran ferum terus menerus dan kepadatan.
Kekuatan magnet, kecepatan belt, kedalaman beban, distribusi material, ketinggian instalasi, dan ukuran partikel semuanya mempengaruhi kinerja penangkapan.
Itu tergantung pada tingkat. Magnetik ferritik dan martensitik (seri 400) stainless dapat merespon lapangan, tetapi stainless austenitik (seri 300) yang tidak magnetik hampir tak terlihat untuk pemisah magnetik standar dan memerlukan pengurutan eddy current atau berdasarkan sensor.
Kekuatan magnet menurun drastis dengan jarak, sehingga pemisah harus berada cukup dekat supaya lapangan medan mencapai dasar lapisan material. Beban yang dalam atau yang tidak rata, atau magnet yang terpasang terlalu tinggi, memungkinkan pecahan ferromagnetik kecil melepaskan. Aliran yang dangkal dan terancam secara rata di jarak yang tepat memberikan penangkapan yang paling terpercaya.
Ajukan Rekomendasi Separasi Magnet
Bagikan material Anda, lebar konveyor, throughput, dan detil kontaminasi. Engineer kami dapat merekomendasikan konfigurasi separator magnet yang sesuai.
