2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
United States
E-mail: sales@albmagnets.com
- R424DIA Neodymium Magnets, 1/4 inch od x 1/8 inch id x 1/4 inch thick
- B668 Neodymium Block Magnets
- D15x2mm Neodymium Magnet, 15 x 2mm Disc Magnet
- D12x50mm Neodymium Magnet, 12 x 50mm Cylinder Magnet
- B842SH Neodymium Magnets, 1/2 inch x 1/4 inch x 1/8 inch thick
- D2Y0 Neodymium Magnets, 1/8 inch dia. x 2 inch thick
- BX884 Neodymium Magnets, 1 1/2 inch x 1/2 inch x 1/4 inch thick
- D31-N52 Neodymium Magnets, 3/16 inch dia. x 1/16 inch thick
- B-W3H1.8L4-N50 Neodymium Magnet, 4x3x1.8mm Block Magnet
- D16 Neodymium Magnets, 1/16 inch dia. x 3/8 inch thick
D4x4mm Neodymium Magnet, 4 x 4mm Cylinder Magnet
| Item No.: | ALB-D4x4mm |
|---|---|
| Material: | NdFeB, Grade N42 |
| Shape: | Cylinder |
| Dimension: | 4mm dia. x 4mm thick |
| Tolerances: | ±0.1mm x ±0.1mm |
| Weight: | 0.377g |
| Grade: | N42 |
| Coating: | Ni-Cu-Ni (Nickel) |
| Pull Force(lbs): | 2.32 lbs (1.06kg) |
| Surface Field(Gauss): | 5903 Gauss |
| Magnetization direction: | Axial (Poles on Flat Ends) |
| Max Operating Temp: | 80°C |
| Product Drawing: |  ·  |
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D4x8mm Neodymium Magnet, 4 x 8mm Cylinder Magnet
D4x10mm Neodymium Magnet, 4 x 10mm Cylinder MagnetOther Grade D4x4mm Neodymium Magnets (4mm dia. x 4mm thick):
| Grade | Item No. | Product Name | Pull Force | Inquiry |
|---|---|---|---|---|
| N35 | ALB-D4x4mm-N35 | D4x4mm-N35 Neodymium Magnets | 1.95 lbs (0.89kg) | Inquiry |
| N38 | ALB-D4x4mm-N38 | D4x4mm-N38 Neodymium Magnets | 1.95 lbs (0.89kg) | Inquiry |
| N40 | ALB-D4x4mm-N40 | D4x4mm-N40 Neodymium Magnets | 2.12 lbs (0.96kg) | Inquiry |
| N42 | ALB-D4x4mm | D4x4mm Neodymium Magnets | 2.32 lbs (1.06kg) | Inquiry |
| N45 | ALB-D4x4mm-N45 | D4x4mm-N45 Neodymium Magnets | 2.47 lbs (1.12kg) | Inquiry |
| N48 | ALB-D4x4mm-N48 | D4x4mm-N48 Neodymium Magnets | 2.61 lbs (1.19kg) | Inquiry |
| N50 | ALB-D4x4mm-N50 | D4x4mm-N50 Neodymium Magnets | 2.69 lbs (1.22kg) | Inquiry |
| N52 | ALB-D4x4mm-N52 | D4x4mm-N52 Neodymium Magnets | 2.76 lbs (1.26kg) | Inquiry |
| N42SH | ALB-D4x4mmSH | D4x4mmSH Neodymium Magnets | 2.32 lbs (1.06kg) | Inquiry |
High Temperature D4x4mm Neodymium Magnets (4mm dia. x 4mm thick) are also available:
| Neodymium Material Type | Maximum Operating Temp | Curie Temp |
|---|---|---|
| N (N35-N52) | 176°F (80°C) | 590°F (310°C) |
| NM (N35M-N52M) | 212°F (100°C) | 644°F (340°C) |
| NH (N33H-N52H) | 248°F (120°C) | 644°F (340°C) |
| NSH (N30SH-N50SH) | 302°F (150°C) | 644°F (340°C) |
| NUH (N28UH-N48UH) | 356°F (180°C) | 662°F (350°C) |
| NEH (N28EH-N48EH) | 392°F (200°C) | 662°F (350°C) |
| NAH (N28AH-N35AH) | 428°F (220°C) | 662°F (350°C) |
The Thermal Characteristics listed above are values commonly associated with each magnet's grade or material. Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit.
D4x4mm Neodymium Magnets (4mm dia. x 4mm thick) with other Coating are also available:
| Coating Type | Overall Thickness | Salt Spray Test | Pressure Cooker Test |
|---|---|---|---|
| Ni-Cu-Ni (Nickel) | 15-21 μm | 24 hours | 48 hours |
| NiCu + Black Nickel | 15-21 μm | 24 hours | 48 hours |
| NiCuNi + Epoxy | 20-28 μm | 48 hours | 72 hours |
| NiCuNi + Gold | 16-23 μm | 36 hours | 72 hours |
| NiCuNi + Silver | 16-23 μm | 24 hours | 48 hours |
| Zinc | 7-15 μm | 12 hours | 24 hours |
Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver Coating layers are 1-2 μm thick. Test results shown to allow comparison between Coating options. Performance in your application under your specific test conditions may vary. Salt Spray testing conducted with a 5% NaCl solution, at 35°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.
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ALB Materials Inc
2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
Website: www.albmagnets.com
E-mail: sales@albmagnets.com
How to choose and buy a strong neodymium magnet? ALBMagnets is a professional company for strong magnet design and manufacturing,
providing you with reliable N35, N38, N42, N52, N42SH and other grade super neodymium magnets and SmCo rare earth magnets.