What is a Magnetic Separator?

A Magnetic Separator is an industrial device that uses magnetic force to separate magnetic particles (such as iron, steel, and magnetic ores) from bulk materials. It is widely applied in:

Mining industry: separating iron ore, manganese, chromium, tin.
Construction materials: removing iron impurities from sand, stone, cement.
Chemical and food industry: cleaning raw materials before grinding or processing.
Recycling: recovering metals from scrap or industrial waste.

Magnetic separators improve product quality, reduce equipment damage and maintenance costs, and ensure production line safety.

Nguyên lý hoạt động

Working Principle

The machine operates based on the attraction of magnetic fields to magnetic particles. There are two main types: dry magnetic separators and wet magnetic separators.

1. Dry Magnetic Separator

Bulk materials are fed onto a conveyor belt or drum.
Magnets or electromagnets generate a strong field that attracts magnetic particles.
Magnetic particles adhere to the magnet surface, move along with the drum, and are discharged separately.
Non-magnetic materials continue through the line.

2. Wet Magnetic Separator

Slurry feeding: Slurry enters the separation tank from the feeding box.
Loosening: Water jets dilute the slurry, improving particle mobility.
Magnetic capture: Magnetic particles are attracted to the drum, forming chains that shed non-magnetic contaminants.
Discharge: Magnetic products are collected in the concentrate tank, while non-magnetic or weakly magnetic particles are discharged through an outlet.

Two common designs:

Counter-current type: Feed direction opposite to drum rotation. High recovery rate, suitable for fine particles (0–0.6 mm).
Concurrent type: Feed direction same as drum rotation. Magnetic particles are collected at the edge of the weak magnetic field, ideal for coarse or strongly magnetic fine particles.

Main Components

Magnetic drum/cylinder: Captures and carries magnetic particles.
Permanent magnets or electromagnets: Provide strong and stable magnetic fields.
Conveyor or feed chute: Transfers material through the magnetic field.
Scraper or discharge drum: Collects separated magnetic material.
Feeding box & separation tank: Guide dry material or slurry into the system.
Protective housing: Made of wear-resistant steel or polymer.
Control unit: Adjusts field intensity, drum speed, and flushing cycle.

Applications

Mining: Upgrade ore purity before grinding or smelting.
Construction materials: Remove iron impurities from sand, stone, cement.
Chemicals & food: Clean raw materials to ensure product safety.
Recycling: Recover valuable metals from industrial waste.

Wet magnetic separators are especially efficient for fine, strongly magnetic particles in slurry, ensuring high recovery and stable performance.

Key Technical Features

Optimized magnetic circuit: High-quality permanent magnets with strong resistance to demagnetization.
High separation efficiency: Maximized recovery with minimal contamination.
Flexible operation: Adjustable field strength, drum speed, and water flow.
Easy maintenance: Simple structure with fewer moving parts.
Durable design: Wear-resistant housing, long-lasting magnetic stability.
Compact & efficient: Low water consumption, small footprint, high throughput.

Technical Specifications

Typical parameters:

Drum / Cylinder Length: 500 mm – 3000 mm
Drum / Cylinder Width: 200 mm – 1200 mm
Magnetic Field Strength: 500 – 3000 Gauss
Drum Speed: 0.5 – 3 m/s
Motor Power: 1 kW – 30 kW
Processing Capacity: 1 – 50 tons/hour (depending on material type and particle size)
Feed Size: 0 – 0.6 mm, suitable for fine particles
Operation Mode: dry or wet, concurrent or counter-current

All parameters can be flexibly adjusted to meet production requirements and specific material characteristics.

Contact Us

If you are looking for a high-quality magnetic separator for your production line, we provide:

Consultation on selecting the right machine for your material and capacity.
Installation, operation support, and scheduled maintenance.
Genuine spare parts, magnets, and magnetic drums.
Customized solutions tailored to your production needs.

📩 Contact us today for quotations and optimized solutions for your business.

Magnetic Separator – An Efficient Solution for Ore Separation