Customization: | Available |
---|---|
Application: | Office / Domestic Magnets |
Shape: | Round |
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Model Name
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Neodymium Office Magnets / Magnetic Pushpins with Metal Shells
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Dimensions
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Shown in the chart below
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Magnet Material
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Neodymium N35 or Customized.
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Tolerance
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+/-0.1mm
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Plating/Coating
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Nickel Plating
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Magnetism Direction
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Axially Magnetized
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Country Of Origin
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China
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Model
(G Series)
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D
(mm)
|
d
(mm)
|
H
(mm)
|
h
(mm)
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Net Weight
(g)
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Max A4 Paper QTY To Hold On White Board
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D16
|
16
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13.2
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7.2
|
3.2
|
9
|
11 pieces
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D22
|
22
|
18
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9
|
3
|
21
|
13 pieces
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D25
|
25
|
21
|
9
|
3
|
27
|
15 pieces
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D30
|
30
|
27
|
9
|
3
|
43
|
17 pieces
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Surface Treatment | Process | Thickness | Color | SST | PCT |
(μm) | (Hours) | (Hours) | |||
Nickel | Ni | 10 ~ 20 | Bright Silver | > 24 ~ 72 | > 24 ~ 72 |
Ni+Cu+Ni | |||||
Black Nickel | Ni+Cu+Ni | 10 ~ 20 | Bright Black | > 48 ~ 96 | > 48 |
Cr3+Zinc | Zn | 5 ~ 8 | Bright Blue | > 16 ~ 48 | --- |
Cr3+Zn | Shining Color | > 36 ~ 72 | |||
Sn | Ni+Cu+Ni+Sn | 10 ~ 25 | Silver | > 36 ~ 72 | > 48 |
Au | Ni+Cu+Ni+Au | 10 ~ 15 | Gold | > 12 | > 48 |
Ag | Ni+Cu+Ni+Ag | 10 ~ 15 | Silver | > 12 | > 48 |
Epoxy | Epoxy | 10 ~ 20 | Black/ Grey | > 96 | --- |
Ni+Cu+Epoxy | 15 ~ 30 | > 120 | --- | ||
Zn+Epoxy | 15 ~ 25 | > 120 | --- | ||
Passivation | --- | 1 ~ 3 | Dark Grey | Temporary Protection | --- |
Phosphate | --- | 1 ~ 3 | Dark Grey | Temporary Protection | --- |
Curie Temperature (°C)
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310~380
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Maximum Working Temperature (°C)
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80~230
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Electrical Resistivity (µ.cm)
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110~170
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Hardness (Hv)
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560~580
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Density (g/cm3)
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7.4~7.8
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Relative Recoil Permeability (µrec)
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1.05
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Saturation Field Strength (kOe/kA/m)
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(30-40)/(2,400-3,200)
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Temp. Coefficient of Br (T.C.α (Br)) (%/°C)
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-0.12 ~ -0.10
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Temp. Coefficient of Hcj (T.C.β (Hcj)) (%/°C)
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-0.6
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