Zinc-plating Loundspeaker Magnets N45M

/Zinc-plating Loundspeaker Magnets N45M
  • Zinc-plating Loundspeaker Magnets N45M

Zinc-plating Loundspeaker Magnets N45M, Super Strong Neodymium Magnet, N45M Zinc Plated Neodymium Magnet, Speaker Neodymium Magnet, Loundspeaker Magnets, Maximum Temperature 100 °C Magnets, Zinc Coated Magnets

Product Name: Zinc-plating Loundspeaker Magnets N45M
Magnet ID:Neodymium-N45M-25
+ Highest Energy of All Permanent Magnets
+ Moderate Temperature Stability
+ High Coercive Strength
+ Moderate Mechanical Strength
Our Superiority: Customized is Available!
* T/T, L/C, Paypal and other payment accepted.
* Orders of any size.
* Worldwide delivery. Fast Shipping.
* Quality and price guaranteed.
* Contact us to discuss your magnet needs.
Hangseng Magnetech Inc. (SUPERMAG, neoi) is your best source for the highest quality magnets, neodymium magnets, magnetic devices and expert application assistance for OEM, point-of-purchase, industrial and retail markets.

The NdFeB magnets are the strongest magnets available. Up to +150 degrees C, they are stronger than the other Rare Earth magnet, SmCo. At around +150 degrees C and above these Neo magnets perform not as strongly as SmCo. The maximum recommended temperature for the NdFeB magnets is +230 degrees C, whereas the SmCo can work at +300 to +350 degrees C.
NdFeB can be used at low temperature but at around 135 Kelvin (-138 degrees C), the direction of magnetisation is said to change from a single axis (easy-axis) to an easy-cone which could cause a fall in output of up to 15% due to this spin reorientation. It is possible to use Neodymium Iron Boron magnets to be used at even colder temperatures but this drop in output will need to be taken into account.

Speaker magnets are important components in speakers Permanent Irregular NdFeB Magnet
Majority of speaker magnets are made from ferrites, the cost is 10 times less than NdFeB magnets. More and more speaker magnets are made from NdFeB or NdNiCo. They are processed through sintering and electroplating. NdFeB magnets for speakers are used in high-quality speakers, compared with ferrite magnets, they are smaller in size and have larger magnetic induction strength (B).

Motor Magnets
We manufacture motor rare earth magnets in various shapes, such as disc, cylinder, ring, square, arch, etc. Custom magnets, including NdFeB magnets used in motors, are made according to customers’ requirements. Like rare earth permanent magnets, ferrite magnetic materials for motors are widely used despite capacity of motor is very small (dBm) in power or very large (KVA) in size. With motor ferrite magnets, there is no need to install a magnetic winding or magnetizing exciter saving copper and electricity in addition to cost.

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

Product Range


Magnetisation Grade:         N45M
Material: Sintered Neodymium-Iron-Boron (NdFeB, NIB, REFeB, Neoflux, NeoDelta), Rare Earth Neo
Magnet ID:             Neodymium-N45M-25
Plating / Coating:   Zinc (Zn)
N45M Magnet Shape:          Ring
N45M Magnet Size:  Customized
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial  /  Radial
Residual Magnetic Flux Density (Br): 1320-1380 mT (13.2-13.8 kGs)
Energy Density (BH)max:             342-366 KJ/m³  (43-46 MGOe)
Coercivity Force (Hcb):              ≥ 955 kA/m ( ≥ 12.5 kOe)
Intrinsic Coercivity Force (Hcj):    ≥ 1114  kA/m ( ≥ 14 kOe)
Maximum Operation Temperature: 100 °C
Delivery Time:           14-35 days

Technical Drawing