SMON6928 48 x 63 mm Neodymium Rare Earth Single Sided Fishing Magnet N38

Brand Description

Stanford Magnets, a company specializing in the research and production of advanced materials, guarantees that each of its products reaches international leading standards through meticulous craftsmanship and strict quality control. The 48x63mm Single Sided Fishing Magnet N38 delivers robust 38 MGOe magnetic strength with specialized corrosion protection, engineered for underwater salvage, metal recovery, and industrial cleaning in demanding aquatic environments.

Related Products: Plastic Coated Magnets

48 x 63 mm Neodymium Rare Earth Single Sided Fishing Magnet N38 Specifications

Properties

*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

48 x 63 mm Neodymium Rare Earth Single Sided Fishing Magnet N38 Description

This specialized fishing magnet features a sintered neodymium core (N38 grade, 38 MGOe) encapsulated in a 48mm-diameter × 63mm-height epoxy shell. The double-layer 0.5mm epoxy coating provides exceptional resistance to abrasion, saltwater corrosion, and UV degradation, validated by 1,000+ hours of ASTM B117 salt spray testing. Magnetic flux is concentrated exclusively on the 48mm-diameter bottom face, enabling penetration through up to 30mm of aquatic sediment while generating ≥80 kg pull force on submerged ferrous objects. An M10 stainless steel eyebolt, welded to a 6mm-thick steel backing plate embedded in the magnet, supports 300 kg tensile loads. The design maintains thermal stability from -30°C to 80°C and withstands hydrostatic pressure at 100m depths. Caution: Sudden detachment may occur with large objects.

48 x 63 mm Neodymium Rare Earth Single Sided Fishing Magnet N38 Applications

Salvage Operations: Recovery of submerged tools, firearms, and metallic artifacts.

Environmental Cleanup: Removal of scrap metal from rivers, lakes, and ocean floors.

Industrial Maintenance: Retrieval of fallen parts in water treatment plants/docks.

Construction: Underwater debris clearance during bridge/pier projects.

Recreational Diving: Magnetic fishing for hobbyists and treasure hunters.

48 x 63 mm Neodymium Rare Earth Single Sided Fishing Magnet N38 Packaging

To ensure safety during transportation and compliance with shipping regulations, all magnets are securely packed with a metal shielding layer inside the box. This prevents magnetic interference with surrounding items and protects the product from external damage.

Packaging: Carton, Wooden Box, or Customized.

48 x 63 mm Neodymium Rare Earth Single Sided Fishing Magnet N38 FAQs

Q1. Why single-sided design?

Concentrates flux on one surface to penetrate mud/silt; prevents debris entanglement on sides.

Q2. How to prevent rust in saltwater?

Double-layer epoxy coating withstands 1,000+ hours of salt spray. Rinse with freshwater after use.

Q3. What reduces wet pull force?

Sediment thickness (>30mm), non-ferrous materials, or oxidized surfaces. Clean the magnet face frequently.

Related Information

1. Common Preparation Methods

The NdFeB alloy is vacuum-sintered at 1,080°C into cylindrical blanks. After diamond grinding to ±0.5 mm tolerances, a steel backing plate with welded M10 eyebolt is bonded to one face using marine-grade epoxy. The assembly undergoes double-coating: first, an anticorrosive zinc-rich primer; then, a fluidized bed application of thermosetting black epoxy powder cured at 200°C. Flux-concentration tuning is achieved through pulsed magnetization (2.8 T) with ferromagnetic focusing plates. Final validation includes 72-hour immersion in 3.5% NaCl solution and pull-force testing on corroded steel surfaces.