Square Neodymium Countersunk Magnet

/Square Neodymium Countersunk Magnet
  • Square Neodymium Countersunk Magnet

Square Neodymium Countersunk Magnet, Block Neodymium Magnet with Countersunk, Block Magnet with Countersunk Hole, N35 Countersink Block Magnet, Countersunk Square Magnet

Product Name: Square Neodymium Countersunk Magnet
Model No:NCB-353520-N35-Ni
1. Powerful permanent pot magnet
2. High quality & best price
3. High working temperature
4. Good corrosion resistance
Original Manufacturer:HangSeng Magnetech
Solution:Customized your required material, size, coating, shape, grade, pull force and woking temperature
Origin:Ningbo, Zhejiang, China
Supply Ability:50000pcs/day
Applications:magnetic holding, lifting, antenna Mounting, positioning, retrieving and much more.

1) high quality
2) customized size & accurate tolerance
3) fast and safe delivery & excellent service
Neodymium magnets attract each other with almost twice the force that they use to attract
steel objects.They also attract each other through very large distances, even small
magnets will attract each other through the thickness of your finger!

Manufacturing methods – sintering (most common), injection molding, compression bonding, or calendaring.
Available shapes: blocks, bars, discs, rings, arc segments, etc.
Available grades: from about 3330 to 5311. (First 2 digits represent BHmax; second two digits represent intrinsic coercivity, or Hci.)
Surface Treatments 90 ° Countersunk Holes Block Magnet
Painting, coating, or plating is generally recommended for NdFeB, although recently certain grades have been made that exhibit higher resistance to oxidation.
Plating NdFeB is a difficult process, and commercial plating houses unfamiliar with the specialized plating techniques required are unlikely to be able to achieve plating with good adhesion on Neo magnets.
Nickel, zinc, or tin plating provides good corrosion resistance for NdFeB magnets, though longer lead times or higher volumes may be required for these. Neo magnets can also be plated using ion vacuum deposition (IVD) techniques. This specialty plating is very controllable for thickness and has excellent adhesion to the material.
A variety of organic coatings have also been successfully developed for NdFeB, exhibiting good corrosion resistance characteristics. For especially harsh environments, it may be advisable to use a combination of coating techniques, or to encapsulate the material in a sealed housing.

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

Product Range


Magnetisation Grade:         N35
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel
Magnet ID:              NCB-353520-N35-Ni
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni / Zinc (Zn) / Epoxy
Shape:         Block with Countersunk (countersink)
Countersunk Magnet Size:
Block Total Long (L):       35 mm
Block Total Height (H):        35 mm
Block Total Width (W):         20 mm
Small Hole Diameter (d):      10 mm
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial /  Radial
Residual Magnetic Flux Density (Br):  1170-1220 mT (11.7-12.2 kGs)
Energy Density (BH)max:              263-287 KJ/m³  (33-36 MGOe)
Coercivity Force (Hcb):              ≥ 868 kA/m ( ≥ 10.9 kOe)
Intrinsic Coercivity Force (Hcj):   ≥ 955  kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time:           14-35 days

Technical Drawing