A magnetic separator for crushers is a device used to remove ferrous metals (like iron, steel, and other magnetic materials) from the raw material feed before or after crushing. This helps protect the crusher from damage, improves efficiency, and ensures product purity.
Types of Magnetic Separators Used with Crushers
1. Suspended Plate Magnet (Overband Magnet)
– Installed above conveyor belts feeding the crusher.
– Automatically removes large ferrous contaminants.
– Ideal for coarse materials before primary crushing.
2. Drum Magnets (Magnetic Pulleys)
– Replaces the head pulley of a conveyor belt.
– Automatically separates ferrous metals as material moves over it.
– Best for finer materials or after crushing.
3. Inline Magnetic Separators
– Placed directly in the material flow path (e.g., chutes or pipelines).
– Effective for small to medium-sized ferrous contaminants.
4. Electromagnetic Separators
– Uses an electromagnet for stronger magnetic fields.
– Adjustable strength, ideal for varying material types.
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Benefits of Using a Magnetic Separator with Crushers
– Protects Crusher Components – Prevents damage to hammers, jaws, and rotors from tramp metal.
– Reduces Downtime – Minimizes maintenance due to metal contamination.
– Improves Product Quality – Ensures cleaner output by removing unwanted metals.
– Enhances Safety – Reduces risks of sparks or equipment jams caused by metal fragments.
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Key Considerations When Choosing a Magnetic Separator
– Material Type & Size – Coarse vs. fine feed determines magnet type.
– Belt Speed & Feed Rate – Affects magnet strength requirements.
– Installation Location – Before primary crushing (for large tramp metal) or after secondary crushing (for finer contaminants).
– Magnet Strength – Measured in Gauss; higher Gauss for finer or weakly magnetic materials.
Popular Applications
– Mining & Quarrying (removing tramp iron from ores).
– Recycling (separating metals in C&D waste).
– Aggregate Processing (protecting cone & impact crushers).
Would you like recommendations based on your specific crusher type (jaw, cone, impact) and material?