A High Gradient Magnetic Separator (HGMS) is an advanced magnetic separation technology designed to extract weakly magnetic or fine particles from liquids, slurries, or powders. It uses a high-intensity magnetic field gradient generated by a matrix (mis., steel wool, expanded metal, or ferromagnetic filaments) to capture even nanometer- or micrometer-sized particles.

Key Features of HGMS:
1. High Magnetic Field Gradient – Achieved by combining a strong background magnetic field (from superconducting or rare-earth magnets) with a fine ferromagnetic matrix, creating localized gradients up to 10⁶ T/m.
2. Fine Particle Capture – Effective for weakly magnetic materials (mis., hematit, ilmenite) or ultrafine particles (<1 μm).
3. Versatility – Used in mineral processing, water purification, biotechnology, dan kitar semula.
4. Continuous or Batch Operation – Some models allow for continuous processing with matrix cleaning cycles.

Aplikasi:
- Pemprosesan mineral: Purification of kaolin, bijih besi, rare earth minerals.
- Alam sekitar: Removal of heavy metals (mis., arsenic, memimpin) from wastewater.
- Biomedical: Cell sorting and protein separation.
- Industrial Waste Recycling: Recovery of metals from electronic waste.

Kelebihan:
✔ High selectivity for weakly magnetic materials
✔ Efficient for ultrafine particle separation
✔ Low energy consumption (especially with superconducting magnets)

Batasan:
✖ Matrix clogging may require frequent cleaning
✖ High initial cost for superconducting systems

Would you like details on specific HGMS designs (mis., superconducting vs. permanent magnet)?