3. Magnetic Performance
· Surface Gauss/Gauss Rating: Measured in Gauss (G) or Tesla (T). It indicates the peak magnetic flux density at the rod's surface. Standard rods range from 8,000 to 12,000 Gauss. High-performance rods exceed 12,000 Gauss. Note: This is a static point measurement.
· Holding/Pulling Force: A more practical metric, often expressed in kilograms (kg). It indicates the direct weight of ferrous material the rod can lift vertically. Good magnetic circuit design maximizes this usable force for capturing fine particles.
· Effective Capture Range: Magnetic strength decays rapidly with distance. For effective capture, material flow must pass close to or in contact with the rod's surface.
Typical Applications
· Food & Beverage: Flour, sugar, spices, tea, milk powder, liquid ingredients.
· Pharmaceuticals & Cosmetics: Active ingredients, powder blends, creams, liquids.
· Plastics & Chemicals: Protecting extruders and injection molders; purifying granules and powders.
· Recycling & Wood Processing: Removing metal from regrind or shredded materials.
Operation & Maintenance
1. Install: Mount the rod in the path of material flow (in a hopper, duct, or pipeline).
2. Collect: Ferrous contaminants are extracted and held firmly against the rod's surface.
3. Clean: Periodically withdraw the rod, wipe off the captured debris (often using a plastic sheet for containment), and reinstall. The process is quick, clean, and requires no tools.
Selection Guide
Application Scenario Recommended Core Recommended Housing Key Consideration
Food/Pharma (Ambient Temp) High-Grade Neodymium 316L SS (Polished) Sanitary Design, Strong Force, Cleanability
Plastics/Chemicals (High Temp) Samarium Cobalt or Temp.-Stable NdFeB 304 or 316 SS Operating Temperature (Critical)
General Powder/Granule Processing Standard Neodymium 304 SS Cost-Effectiveness, Adequate Strength
Liquid/Pipeline Installation High-Gauss Neodymium 316 SS w/ Flange Strong Force, Sealed Connection
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