Separador Magnético para Recuperação de Materiais
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.
Tipos de separadores magnéticos
The right magnetic separator depends on where the metal appears, how deep the material layer is, and whether you need manual or continuous discharge.
Separador Magnético de Banda Superior
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.
Separador de correntes parasitas
For non-ferrous metals.
Used after ferrous removal when the line also needs to recover aluminum, copper, brass, and other conductive non-ferrous metals.
Principais aplicações
Magnetic separation supports both equipment protection and product purity in recycling and industrial material handling.
Reciclagem de Plástico
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.
Fabrico
Manutenção contínua de moendas, moinhos e linhas de produção, removendo metais do material bruto antes de alcançar a máquina.
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.
Por que isso importa
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.
| Parâmetro | Opções típicas | Notas de seleção |
|---|---|---|
| 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. |
| Redução de poeira e prolongamento da vida útil da ferramenta | 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. |
Equipamentos Relacionados
Build a cleaner recovery line by pairing magnetic separation with the right downstream sorting and recycling equipment.
Perguntas frequentes
Instale antes de britadores, granuladores, extrusores, granuladores ou equipamentos de classificação fina sempre que metais ferrosos possam danificar a maquinaria subsequente.
N.º Separadores magnéticos padrão removem metais ferrosos como ferro e aço. Alumínio, cobre e latão geralmente requerem um separador de corrente indutiva.
Magnetos de faixa são comuns acima de transportadores. Magnetos de tambor e correias magnéticas são úteis quando o layout necessita de descarga contínua e compacta de metais ferrosos.
Força do ímã, velocidade da faixa, profundidade da carga, distribuição do material, altura de instalação e tamanho dos grãos afetam o desempenho de captura.
Depende da qualidade. A aço inoxidável magnética ferrítica e martensítica (série 400) responde ao campo, mas a aço inoxidável austenítica (série 300), não magnética, é praticamente invisível a um separador magnético padrão e requer classificação por corrente de Foucault ou sensor.
A força magnética cai abruptamente com a distância, portanto, o separador deve estar suficientemente perto para que seu campo alcance o fundo da camada de material. Uma carga profunda ou irregular, ou um íman montado muito alto, permite que pequenos pedaços ferrosos escapem. Uma corrente superficial e uniforme no espaço correto oferece a captura mais confiável.
Solicite uma Recomendação de Separador Magnético
Compartilhe suas informações sobre o material, largura do transportador, capacidade de produção e detalhes de contaminação. Nossos engenheiros podem recomendar uma configuração adequada de separador magnético.
