Block Super Strong Rare Earth Neodymium Magnet N52

/Block Super Strong Rare Earth Neodymium Magnet N52
  • Block Super Strong Rare Earth Neodymium Magnet N52

Block Super Strong Rare Earth Neodymium Magnet N52, Neodymium-Iron-Boron Block Magnet, Square Neodymium Magnet, Customized Rare Earth Strong N52 Magnets China Manufacturer

Product Name: Block Super Strong Rare Earth Neodymium Magnet N52
Magnet ID: 40x40x20mm-Block-N52-Ni
+ 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.

Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the resultant magnets are the strongest magnets currently available.
Neodymium magnets are sometimes known as Neo, Neod or NIB magnets.
Neodymium magnets are usually coated Nickel-Copper-Nickel plating to prevent the iron from rusting.
Neodymium block magnet was made of NdFeB, have strong magnetic performances and appearance does not rust, usually placed in room temperature, the maximum operating temperature is 80 °C , and it never will demagnetization.

Material Neodymium Magnets
Plating Nickel copper nickel triple layer plated
Certification RoHS passed
Grade N52
BR 14300-14800 GAUSS
Hcj ≥ 12 KOe
Hcb ≥ 10.8 KOe
BHmax 50-53MGOe
Shape Block
Dimension 40mmx 40mm x20mm(L x W x T)
Tolerance +-0.1mm
Max Operating Temperature 80°C/176°F
Weight 250G
Volume 320003
Magnetic pull force ca. 85 kg
Magnetization through thickness 20mm direction/ poles on largest surfaces
Scope Great for DIY, science projects, holding, stud finders, locating nails under floor.

The pull force was tested at 20 Celsius degree, on a polished iron plate with a thickness of 20 mm. The magnet was deducted vertically. A difference of up to -10% compared to the specified value is possible in exceptional cases.


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

Product Range


Item No: 40x40x20mm-Block-N52-Ni
Magnet Shape: Block / Rectangular / Square
Material: neodymium-iron-boron (NdFeB), neodymium, neo
Coating: nickle (Ni-Cu-Ni)
Magnetic Grade:         N52
Magnetisation Direction: Axial
Residual Magnetic Flux Density (Br): 14.4-14.8 KGs (T):  1.44-1.48 T
Energy Density (BH)max:              50-53 MGOe   398-422 KJ/m³
Coercivity Force (Hcb):              ≥10.5 KOe  ≥836 KA/m
Intrinsic Coercivity Force (Hcj):    ≥11 KOe    ≥875 KA/m
Maximum Operation Temperature: 80 °C
Length (L):           40 mm
Width (B):          40 mm
Height (H):          20 mm
Tolerance:         ±0.1 mm
Delivery time           7-14 days

Technical Drawing