Magnetic separation, metal removal and vibratory conveying solutions

Rare-Earth Roll Separators

Rare-Earth Roll Magnetic Separator

The roller-type dry magnetic separator (also known as a high-intensity magnetic separator) is a dry magnetic separation device used for the continuous sorting and ferrous contaminant removal of solid materials, primarily achieving the separation of ferromagnetic contaminants from the material via a roller-based structure. The equipment employs permanent magnets or high-strength magnetic systems to generate a stable magnetic field on the roller surface, making it suitable for the purification and sorting of powders, granules, and mineral raw materials, and widely applied in mineral processing and industrial ferrous contaminant removal.
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Application-based selection Custom engineering available Ongoing technical support

OVERVIEW

Product Overview

       The material enters the magnetic field zone of the roller uniformly. Ferromagnetic particles are adsorbed onto the roller surface under magnetic force, while non-magnetic materials fall naturally under gravity, completing the separation. As the roller continues to rotate, the adsorbed ferrous contaminants move with the surface and are automatically released when they reach a region of reduced magnetic field strength, thereby achieving a continuous and stable material separation process.


 

Features and Advantages
  • Permanent magnet rollers made from high-quality ferrite or rare-earth magnetic steel provide strong magnetic field strength and steep magnetic gradients.
  • The magnetic field is stable, making them suitable for separating materials with varying degrees of magnetic susceptibility.
  • They enable continuous operation, ideal for long-term production line use.
  • The separation process is stable, appropriate for fine powders as well as medium-to-coarse particulate materials.
  • Their compact design makes them applicable in both small-scale trials and industrial production.
Optional Configurations
  • Temperature resistance grades available: ambient, 85°C, 100°C, 120°C, 150°C, 350°C, etc.
  • A variety of magnetic system specifications: 10,000 gauss, 12,000 gauss, 14,000 gauss.
  • Number of magnetic roller layers optional: single-layer, double-layer, or triple-layer rollers.
  • Exterior styles available: sealed dust‑proof hoods and transparent observation windows.
  • Surface treatments optional: sandblasting or polishing.
Applications
  • Mining and Mineral Processing Industry: Used in the magnetic separation stage of ore beneficiation lines to enhance the grade of iron ore, manganese ore, and other minerals.
  • Non‑Metallic Minerals Industry: Employed in raw material de‑ironing and purification processes to remove ferrous impurities from quartz sand, feldspar, and similar materials.
  • Industrial Waste Treatment: Applied in waste recycling operations to recover metallic impurities from steel slag and other waste streams.
  • Powder Processing Industry: Used in the purification of dry powders and fine powders to improve material purity.
  • Testing and Small‑Scale Production: Suitable for laboratory settings and small‑batch production for material separation and process validation.
Materials Processed
  • Ore Materials: Iron ore, manganese ore, limonite, etc.
  • Non‑Metallic Minerals: Quartz sand, feldspar, kaolin, etc.
  • Powder Materials: Dry powders, mineral powders, and fine particulates.
  • Industrial Waste: Steel slag, slag, and other iron‑containing mixed materials.

SPECIFICATIONS

Specifications

Model 
Model
DimensionsWeight
Weight
Dia ALH
(mm)(in)(mm)(in)(mm)(in)KG
DR100-250-1100425010127250240
DR100-375-137515300
DR100-500-150020330
DR100-750-175029410
DR100-1500-1150625010157662520
DR150-250-137515480
DR150-375-150020560
DR150-500-175029650
DR150-750-1100039792
DR150-1500-1150059860

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