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Bonded Neodymium Disc Magnet

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Bonded Neodymium Disc Magnet

Bonded Neodymium Disc Magnets: Compact and Versatile Magnetic Solutions

 

Bonded Neodymium Disc Magneta

Bonded neodymium disc magnets are high-performance magnetic components engineered to deliver exceptional strength in a compact design. Made by combining neodymium magnetic powder with polymer binders through an advanced bonding process, Bonded neodymium disc magnets offer precision shaping, durability, and lightweight construction. The disc shape is ideal for applications requiring space-efficient solutions and consistent magnetic performance, such as sensors, medical devices, motors, and electronics.

 

 

Key Features of Bonded Neodymium Disc Magnets

 

1. Exceptional Magnetic Strength

Bonded neodymium disc magnets provide high-performance magnetic fields, making them ideal for compact and powerful applications.

2. Compact and Lightweight Design

Combines strong magnetic properties with a lightweight structure, perfect for space-constrained systems.

3. Customizable Dimensions

Available in various diameters and thicknesses to meet specific design and application requirements.

4. Versatile Magnetization Options

Bonded neodymium disc magnets can be magnetized axially, radially, or in multipole configurations to suit diverse application needs.

5. Corrosion Resistance

Naturally resistant to rust and moisture, with optional coatings such as nickel, epoxy, or Teflon for enhanced durability in harsh environments.

6. High Precision and Tight Tolerances

Manufactured with exacting precision, ensuring seamless integration into mechanical and electronic assemblies.

7. Temperature Stability

Specialized grades available for high-temperature applications, ensuring reliable performance in extreme conditions.

8. Durability and Longevity

Maintains magnetic strength over time and resists demagnetization under mechanical or environmental stress.

9. Versatile Applications

Bonded neodymium disc magnets are ideal for use in sensors, medical devices, compact motors, electronic systems, and industrial automation.

 

Magnetic Properties

 

Grade Remanence Intrinsic Coercivity Magnetic Induction Coercivity Max Magnetic Energy Product Maximum Working Temperature Recoil Permeability Saturation Magnetizing Force Density Reversible Temp Coefficient
Br Hcj Hcb (BH) max °C μ rec Hs g/cm³ %/°C
KGs mT KOe KA/m KOe KA/m MGOe KJ/m³ KOe KA/m
BNM-5 5.7-6.2 570-620 7.0-9.0 560-720 3.6-4.0 288-320 5.0-6.0 40-48 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-6 5.8-6.3 580-630 8.0-10.0 640-800 4.0-4.7 322-376 6.0-7.0 48-56 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-7 5.9-6.4 590-640 8.0-10.0 640-800 4.5-5.2 360-416 7.0-8.0 56-64 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-8 6.2-6.7 620-670 8.5-10.0 680-800 5.0-5.8 400-464 8.0-9.0 64-72 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-9 6.4-6.9 640-690 8.5-10.0 680-800 5.2-5.6 416-448 8.5-9.5 68-76 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-10 6.7-7.2 670-720 8.5-10.0 680-800 5.2-6.0 416-480 9.0-10.0 72-80 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-11 6.9-7.4 690-740 9.0-10.5 720-840 5.0-5.8 400-464 10.0-11.0 80-88 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-12 7.4-7.6 740-760 9.0-10.5 720-840 5.7-6.4 456-512 11.0-12.0 88-96 120-140 1.1-1.2 ≥20 ≥1600 6.0-6.4 -0.1~-0.13
BNM-11L 7.0-7.5 700-750 6.5-8.0 520-640 5.0-5.8 400-464 10.0-11.0 80-88 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13
BNM-12L 7.5-8.0 750-800 6.5-8.0 520-640 5.4-6.2 432-496 10.5-11.5 84-92 120-140 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.08~-0.13
BNM-8SR 6.2-6.7 620-670 11.0-14.0 880-1120 5.0-5.8 400-464 8.0-9.0 64-72 140-160 1.1-1.2 ≥20 ≥1600 5.8-6.2 -0.1~-0.13

 

Dimensional Tolerance

unit:mm

Height Range Height Tolerance Parallelism Rectangularity
≤4 0.06 0.04 0.04
4-10 0.08 0.05 0.06
10-18 0.10 0.06 0.08
18-30 0.15 0.08 0.10
30-50 0.20 0.10 0.12
>50 0.30 0.10 0.12

 

Diameter Range Diameter Tolerance Circularity Concentricity
≤4 0.03 0.02 0.04
4-10 0.04 0.02 0.05
10-18 0.06 0.03 0.05
18-30 0.08 0.04 0.06
30-50 0.10 0.05 0.06
50-80 0.10 0.06 0.08
>80 0.12 0.06 0.08

Process Flow

Bonded Neodymium Discs Magnets

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