2. Dimensional identifications
Below is the dimensional identification for ring neodymium magnets.
Take the metric units for confirmation if you find there are minor differences.
- The dimension for block neodymium magnets: Length x Width x Height
- Usually, the dimension begins with an uppercase letter F.
If a block neodymium magnet has a dimension of F8 × 4 × 2 mm, that means its length is 8 mm, the width is 4 mm, and the height is 2 mm.
- Block magnets: Length x Width x Height (For example, 10 x 10 x 10 mm)
- Block magnets with a hole: Length x Width x Height x Hole diameter (For example, 10 x 10 x 10 x D5 mm)
- Block magnet with a countersunk hole: Length x Width x Height x Major hole diameter (For example, 10 x 10 x 10 x M5 mm)
By default, the last number is the magnetization direction of this magnet.
Therefore, the magnetization direction is the direction of 2 mm, which is the thickness direction for magnetization.
Meanwhile, N and S are the two bigger surfaces, namely the 8 × 4mm surface.
One side is the N pole, and the other side is the S pole.
3. Available dimensions
1). Available sizes for block neodymium magnets
- Length: 1 – 200mm (1/16 – 7 7/8 inches)
- Width: 0.5 – 100mm (1/64 – 3 15/16 inches)
- Height: 0.3 – 120mm (1/64 – 4 ¾ inches)
2). The largest block neodymium magnets that Osenc can offer
- Rectangle: Length 200 × width 80 × height 50mm (7 7/8 x 3 1/8 x 1 15/16 inches)
- Square: Length 100 × width 100 × height 60mm (3 15/16 x 3 15/16 x 2 3/8 inches)
- The longest magnetization direction: 200mm (7 7/8 inches)
Note:
If the size of one direction is the largest, then the size of other directions should be smaller.
If the sizes of two directions are larger, the thickness should not be too small.
3). The smallest size of block magnets
- Length 1 × width 1 × height 0.3mm (1/16 x 1/16 x 1/64 inches)
4. Grades
Neodymium magnets have different grades, ranging from N35 to N55.
And they also have high-temperature grades for special applications, like H, M, SH, EH, and AH.
5. Coatings
Osenc can offer custom neodymium magnets with several different types of coatings.
They include nickel, zinc, epoxy, etc. Each of them has its own unique properties and benefits.
6. Magnetization directions
As a common practice, the size identification for block magnets:
Length x Width x Height.
The last digit of this size identification is the magnetization surface.
- For example, for a magnet of F20 x 15 x10 mm, the magnetization direction of this magnet is 10 mm surface.
Packing Method
