50mm x 4mm Disc Rare Earth Neodymium Magnet N40 Gold

50mm x 4mm Disc Rare Earth Neodymium Magnet N40 Gold, Super Strong Rare Earth Sintered NdFeB Disk Round Magnet for Toy and Craft, 80 °C Nickel Coated Neodymium Disc Permanent Magnets China Supplier

50mm x 4mm Disc Rare Earth Neodymium Magnet N40 Gold Technical Specifications:
Item: NDN40-5004-G
Grade: N40
Material: Neodymium (NdFeB)
Plating: Gold
Shape: Disk, Round, Disc, Circular, Cylinder
Dimension:
Total Diameter (D): Ø 50 mm
Total Height (H): 4 mm
Tolerance: ±0.05 mm
Magnetisation Direction: Axial / Radial
Residual Magnetic Flux Density (Br): 1250-1280 mT (12.5-12.8 kGs)
Energy Density (BH)max: 302-326 KJ/m³ (38-41 MGOe)
Coercivity Force (Hcb): ≥ 907 kA/m ( ≥ 11.4 kOe)
Intrinsic Coercivity Force (Hcj): ≥ 955 kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time: 14-35 days

Magnetic Grades and Temperature:
The Grade of a magent directly refers to the Maximum Energy Product of the material that composes the magnet. It in no way refers to the physical properties of the magnet. Grade is generally used to describe how “strong” a permanent magnet material is. The energy products is specified in the unites Gauss Oersted.
One MGOe is 1,000,000 Gauss Obersted. A grade forty (N40) would have a Maximum Energy Product of 40 MGOe.The higher the grade the “stronger” the magnet. Super Strong Permanent Neo Magnet N45 Teflon
Magnetic materials have a wide range of working temperatures. The following chart the various materials and their maximum working temperature. NdFeB material comes in many different heat tolerances but as the heat tolerance increases the maximum available fulx density decreases:
Description Magnet
Material: NdFeB magnet
Woking Temperature Grade Max.Operating Temperature
N35-N52 80°c
33M-48M 100°c
33H-48H 120°c
30SH-45SH 150°c
30UH-40UH 180°c
28EH-38EH 200°c
28AH-35AH 220°c

Neodymium Magnet also has a very good application in electric.
Application of Neodymium Magnet in many electronic above is also great, especially some electronic toys above its maximum application, sometimes need to use it as a driving force, but also sometimes, through it to reach the taste of their own requirements, but it is also need their own quality.
Only let the Neodymium Magnet meet the requirements in the quality, can let it when in use, performance of various products is required, at the same time make it when in use, to achieve a long service life, in fact, to the user, it with a product to make, only two requirements, one is its performance, also is the life.
These two properties that is easy, but at the time of production, is facing great difficulties, first from the ingredients, and then to its smelting process, and then to final sizing, coating and so on are to meet the requirements, if the manufacturer has a link negligence, it finally it cannot meet the requirements.