4 x 20mm Diametric
4mm x 20mm Diametrically Magnetized Cylinder Magnet Neodymium Rod Magnets N35 4x20mm Rare Earth Diametric Magnets
$10.75
| Material | NdFeB, Grade N35 |
| Shape | Disc / Cylinder |
| Diameter | 4 mm |
| Height | 20 mm |
| Tolerance | +/- 0.1 mm |
| Coating | Nickel-plated (Ni-cu-Ni) |
| Magnetisation | Diametrically Magnetized |
| Strength | approx. 0.9 kg |
| Max. working temperature | 176°F (80°C) |
| Weight(1 piece) | 1.88 g |
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4mm dia x 20mm thick Diametrically Magnetized Neodymium Disc Magnets N35 Nickel-Plated Rare Earth Diametric Magnets for Sale Round Magnet Amazon for Crafts where to find earth magnets 4x20mm
- 4 mm diameter x 20 mm thickness
- Each magnet’s north and south pole are on opposite 4mm thickness faces
- Each magnet can support a steel weight of up to 0.9 kg vertically from the magnetic face when in flush contact with a mild steel surface
- Excellent resistance to demagnetisation
- Coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth and clean finish
| Technical information | |
|---|---|
| Model ID | D-04-20-DN |
| Material | NdFeB, Grade N35 |
| Shape | Rod / Cylinder |
| Surface Field | 1360 Gauss |
| Composite | Neodymium Magnet |
| Diameter | 4 mm |
| Height | 20 mm |
| Tolerance | +/- 0.1 mm |
| Coating | Nickel-plated (Ni-Cu-Ni) |
| Magnetisation | Diametrically Magnetized |
| strength | approx. 0.9 kg |
| Max. working temperature | 176°F (80°C) |
| Curie temperature | 310 °C |
| Weight(1 piece) | 1.88 g |
| Residual magnetism Br | 13700-14200 G, 1.37-1.42 T |
| Coercive field strength bHc | 10.8-12.5 kOe, 860-995 kA/m |
| Coercive field strength iHc | ≥12 kOe, ≥955 kA/m |
| Energy product (BxH)max | 35MGOe |
These small diametrically magnetized cylinders are great for use with Hall Effect Sensors. The poles are located on the sides of the cylinders, so they will attract each other as shown in the bottom picture.
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