Custom Magnets
A variety of custom magnets can be tailored to meet global customers’ requirements. When you request for quotation, please provide us a technical drawing with the following specifications as detailed as possible. We deliver complete custom technical magnets and complex magnetic assemblies to match your unique design requirements. Our precision magnetic solutions include but are not limited to:
Custom Rare-Earth Magnets
Custom Ceramic & Flexible Magnets
Custom Alnico Magnets
Custom Magnetic Assemblies
Custom Magnets
Material type (sintered NdFeB magnets, bonded NdFeB magnets or sintered SmCo magnets) and grade/magnetic properties (please take the maximium working temperature Tw into consideration).
Dimensions and tolerances.
Need any coating? If yes, please confirm the coating type.
Magnetization direction and/or number of magnetic poles.
Order quantity.
Other requirements if there are.
Custom Magnets to Your Drawings or Specifications
Small quantities of custom magnets can be machined from raw stock materials that we stock in-house. Turnaround times are as short as two weeks for time-critical projects. We can provide custom magnets in a broad range of shapes and configurations, and with special features to meet your application and performance requirements including:
Rectangles, arcs, discs, rings, or complex shapes.
Magnetic orientation to your specified angle.
Special coatings
Thermal stabilization
Data as required (dimensional & magnetic inspection, material traceability)
Please do not hesitate to call us, email us or leave us a message. We will respond to your inquiry within one business day. Request a quote on custom magnets and magnetic assemblies, or contact us today to learn more. We also offer a wide range of standard neodymium, samarium cobalt, alnico and flexible magnets
Custom Magnets to Your Drawings or Specifications
Typical Physical and Chemical Properties of Some Magnetic Materials Comparison:
| Performance Name | Unit | Sintered NdFeB | Bonded NdFeB | Sintered Sm2Co17 | Sintered SmCo5 | Sintered Ferrite | Injection Ferrite | AlNiCo |
|---|---|---|---|---|---|---|---|---|
| Maximum Energy Product ((BH)max) | MGOe | 28 ~ 52 | 2 ~ 13 | 16 ~ 32 | 14 ~ 24 | 2 ~ 5 | 1 ~ 2 | 1 ~ 13 |
| Intrinsic Coercivity (Hcj) | kOe | 11 ~ 35 | 6 ~ 14 | 8 ~ 35 | 15 ~ 30 | 2 ~ 5 | 2 ~ 4 | 1 ~ 2 |
| Temperature Coefficient of Br (α) | %/°C | -0.09 ~ -0.12 | -0.10 ~ -0.13 | -0.030 ~ -0.045 | -0.035 ~ -0.050 | -0.2 | -0.2 | -0.02 |
| Temperature Coefficient of Hcj (β) | %/°C | -0.40 ~ -0.60 | -0.40 ~ -0.60 | -0.20 ~ -0.30 | -0.20 ~ -0.30 | 0.3 | 0.3 | 0.01 ~ 0.03 |
| Curie Temperature (Tc) | °C | 310 ~370 | 300 ~ 350 | 800 ~ 850 | 700 ~ 750 | 450 ~ 480 | 450 ~ 480 | 750 ~ 890 |
| Maximum Working Temperature (Tw) | °C | 230 | 150 | 350 | 250 | 250 | 150 | 500 |
| Recoil Permeability (μrec) | – | 1.05 | 1.2 | 1.05 ~ 1.10 | 1.05 | 1.05 ~ 1.20 | 1.05 ~ 1.20 | 1.70 ~ 4.70 |
| Density (ρ) | g/cm3 | 7.4 ~7.7 | 4.0 ~ 6.5 | 8.3 ~ 8.5 | 8.1 ~ 8.4 | 4.8 ~ 5.2 | 3.3 ~ 3.9 | 6.9 ~ 7.4 |
| Resistivity (ρ) | μΩ·m | 1.4 ~ 1.6 | – | 0.8 ~ 0.9 | 0.5 ~ 0.6 | > 1×108 | > 1×108 | > 5×103 |
| Thermal Conductivity (λ) | W/(m·°C) | 8 ~ 10 | – | 12 | 13 | – | – | – |
| Vickers Hardness (Hv) | MPa | 500 ~ 600 | – | 500 ~ 600 | 400 ~ 500 | 480 ~ 580 | – | 520 ~ 630 |
| Rockwell Hardness (HRB) | MPa | – | 35 ~ 45 | – | – | – | – | – |
| Compressive Strenght (σbc) | MPa | 1000 ~ 1100 | 200 | 800 | 1000 | – | – | – |
| Bending Strength (σbb) | MPa | 200 ~ 400 | – | 150 | 180 | 300 | 90 ~ 160 | – |
| Tensile Strength (σb) | MPa | 80 ~ 90 | 58 | 35 | 40 | < 100 | 45 ~ 110 | – |
| Young’s Modulus (E) | GPa | 150 ~ 200 | – | 120 | 130 | – | – | – |
| Thermal Expansivity (α) | 10-6/°C | ∥3 ~ 4 | 1 ~ 2 | ∥7 ~ 9 | ∥5 ~ 7 | 7 ~ 15 | – | – |
| ⊥1 ~ 3 | ⊥10 ~ 12 | ⊥11 ~ 13 | ||||||
| Corrosion resistance | ★★☆☆☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ | ★★★★★ |
Note:
∗ The above data are only for reference, specific magnets maybe have different values.