Zn Plated NdFeB Ring Strong Magnet

/Zn Plated NdFeB Ring Strong Magnet
  • NdFeB Ring Strong Magnet

Zn Plated NdFeB Ring Strong Magnet, Zinc Plating N40 Neodymium Magnet, Strong Super Permanent Neodymium Ring Magnet, Sintering Neodymium Ring Magnet

Product Name: Zn Plated NdFeB Ring Strong Magnet
Magnet ID:Ring-Ø56xØ20×3-N40-Zn
+ Highest Energy of All Permanent Magnets
+ Moderate Temperature Stability
+ High Coercive Strength
+ Moderate Mechanical Strength

Principal Magnetic Properties: Permanent magnet materials are identified by the following principal magnetic properties:
Maximum value of energy product (BH)max MGO Residual induction Br gauss Coercive force Hc oersteds
The measurement of the principal magnetic properties are made in a in closed magnetic circuit permeameter by commonly accepted procedures such as given in IEC Standard Publication 404-5 “Methods of Measurement of Magnetic Properties of Magnetically Hard (Permanent Magnet) Materials or the “MMPA Permanent Magnet Guidelines” (current edition).They are accurate only for magnets having a straight magnet axis and produced with a constant cross section along the axis of magnetization. The minimum magnet volume of a sample used to measure these magnet properties shall be one cubic centimeter and the smallest dimension shall be at least 5mm. The’ performance of a permanent magnet circuit is de-pendent on the dimensions of all components and the properties of the other components of the circuit, as well as the properties of the permanent magnet. It is recommended not to use unit properties of a material as the specification. These are generally recommended to be only used on prints or drawings to show a subgrade within a material group. Section 8.0 of the specification describes the proper means of specifying the acceptable properties of a permanent magnet component part.

Thermal Properties: Predicting magnet performance as a function of the magnet’s temperature requires knowledge of the following thermal properties:
Reversible temperature coefficient of the residual induction TC (Br) %/ºC
Reversible temperature coefficient of the intrinsic coercive force TC (Hci) %/ºC
Curie temperature Tc ºC
Maximum service temperature T max ºC
The values listed for each class of materials for thermal properties are typical values intended as design guidelines only and are not to be used as a basis for acceptance or rejection. Values for irreversible temperature characteristics are not listed because they depend on the magnet material, geometry and circuit in which the magnet is used.

  • Affordable price
  • Customized magnet is Available
  • Any payment accepted
  • Fast shipping, Worldwide delivery
  • Quality guaranteed
  • Offer free neo magnets solution

Product Range


Magnet Shape: Ring
Material: neodymium-iron-boron (NdFeB), neodymium, neo
Coating: Nickel (Ni-Cu-Ni)
Magnetic Grade:         N40
Magnetisation Direction: Axial
Residual Magnetic Flux Density (Br): 12.6-13.0 KGs (T):  1.26-1.30 T
Energy Density (BH)max:              38-41 MGOe   302-326 KJ/m³
Coercivity Force (Hcb):              ≥10.8 KOe  ≥860 KA/m
Intrinsic Coercivity Force (Hcj):    ≥12 KOe    ≥955 KA/m
Maximum Operation Temperature: 80 °C
Total diameter D: Ø 56 mm
Inner diameter d: Ø 20 mm
Total height H:       3 mm
Tolerance:         ±0.1 mm
Delivery time           3-14 days

Technical Drawing