12000 GS Bar Magnet

12000 GS Bar Magnet – High‑Intensity Rare Earth Magnetic Bar for Contaminant Removal

In industries where product purity is critical, the 12000 GS bar magnet delivers aggressive capture of ferrous tramp metal from free‑flowing materials. With a surface magnetic field of 12,000 Gauss – significantly higher than standard 8,000‑10,000 GS units – these bars extract fine particles down to 30 microns and weakly magnetic contaminants such as work‑hardened stainless steel or rust flakes. Typical installations include chutes, hoppers, liquid pipelines, and pneumatic conveying systems in food processing, chemicals, pharmaceuticals, and plastics recycling. Each bar is constructed from seamless 316L stainless steel tube (electropolished, Ra ≤ 0.4 μm), internally packed with high‑grade sintered N48SH neodymium‑iron‑boron magnets arranged in a Halbach array to maximize surface flux. The ends are fully welded with threaded studs, eye bolts, or flanges per customer specification. Our factory uses only virgin rare‑earth materials (purity ≥95%) and full vertical integration to ensure consistent gauss readings across the entire bar length. We offer standard diameters of 25 mm and 32 mm, lengths from 100 mm to 1200 mm, and high‑temperature grades (up to 150°C) using SmCo magnets. Every 12000 GS bar magnet is 100% tested along its surface with a Hall probe, and we supply a magnetic profile report with each batch. Backed by IATF 16949 and ISO 9001, these bars are FDA‑compliant and suitable for sanitary environments.

Technical Specifications – 12000 GS Bar Magnets

Below are standard configurations for our 12000 GS bar magnet series. Custom diameters, lengths, and magnet materials are available.

Deeper Magnetic Capture Zone

A 12000 GS bar magnet creates a strong field extending 30‑40 mm from the tube surface. This captures ferrous particles even in dense, fast‑moving material streams where lower‑intensity bars would miss contaminants passing at a distance.

Superior Build Quality

Full‑penetration TIG welding and electropolishing eliminate crevices where material could accumulate. Smooth surface finish prevents sticking and allows easy cleaning. All welds are dye‑penetrant inspected.

Customizable End Fittings

Choose from threaded studs (M6, M8, M10), eye bolts, clevis pins, or flanges for easy installation into existing chutes, hoppers, or pipeline tees. We also offer quick‑clean hinged grids with multiple bars.

12000 GS magnetic filter bars are ideal for:
Liquid and slurry filtration
Food processing (sauces, syrups, beverages)
Chemical slurries
Ceramic glaze filtration
Plastic pellets and powder separation
Grain, sugar, and seasoning processing
High-purity powder manufacturing
Used to protect:
Pumps • Mixers • Extruders • Valves • Centrifuges • Filling machines

Our facility produces the internal magnetic cores using only virgin rare‑earth materials (purity ≥95%, no recycled scrap). The magnets are sintered, ground, and assembled into Halbach arrays to maximize surface field. Each array is inserted into a precision‑made 316L tube, then the tube ends are welded shut using automated TIG welding in an inert atmosphere to prevent oxidation. After welding, the assembly is electropolished and passivated. Every 12000 GS bar magnet is tested on a motorized gauss mapping station that records field strength at multiple points along the bar. We also perform gauss reading at 10 mm distance to verify deep‑field performance. Leak testing of welds (helium or dye penetrant) is done for critical sanitary applications. All products come with a test certificate and full traceability to material batches.

Each bar is wrapped in foam and secured in a custom plywood crate or heavy‑duty carton with internal padding to prevent bending or scratching. Lead times: 10‑15 days for standard sizes, 20 days for custom lengths. Free samples for evaluation (shipping fee applies). We support export packaging with fumigation‑free wood and full documentation for customs.