90 ° Countersunk Holes Block Magnet

/90 ° Countersunk Holes Block Magnet
  • 90 ° Countersunk Holes Block Magnet

90 ° Countersunk Holes Block Magnet, Permanent Block Magnet with 90 °Countersunk 2 Holes, High Grade NdFeB Block Countersunk Magnet, Permanent Mounting Magnet with Countersunk Holes

Product Name: 90 ° Countersunk Holes Block Magnet
Model No:NCB-30105-N40-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.

Neodymium Iron Boron Magnet Material Overview Request for Quote
Neodymium Iron Boron Magnet Material Overview
Neodymium Iron Boron (NdFeB) magnets were commercially introduced in the early 1980s, and are widely used today for many different applications. The cost of neodymium magnet material (on a dollar per energy product basis) is comparable to that of ferrite magnets. * NdFeB magnets are covered by various patents and only licensed materials are allowed into the CHINA.

HSMAG designs and builds custom neodymium magnets and magnetic assemblies, manufactured to meet your specialty requirements. Send us a request for quote or contact us today for more information about standard or custom neo magnets. Large inventory of neodymium magnets are also available for on-line purchase at NEODYMIUMMAGNETI.com.

First neodymium-magnet Pro Audio compression driver and woofer
Neodymium magnets and dual voice coils provide peak performance at a fraction of the weight of conventional drivers. JBL’s next generation neodymium compression drivers deliver stunningly accurate high frequencies through a new 1.5″ annular polymer diaphragm design.

Block Countersunk NdFeB Magnet Key Benefits
Very high strength.
Relatively low cost: by weight, about 20x Ferrite magnets, by “Dollar per BHmax” about 1.5x ferrite magnets.
Relatively easy to machine, compared to alnico and samarium cobalt magnets.
Key Challenges
Properties deteriorate rapidly at temperatures in excess of about 150°C depending on grade and permeance coefficient at which the magnet operates at.
Most grades of NdFeB magnets need to be protected against oxidation by coating or plating the magnets.

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

Product Range


Magnetisation Grade:         N40
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel
Magnet ID:              NCB-30105-N40-Ni
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni / Zinc (Zn) / Epoxy
Shape:         Block with Countersunk (countersink)
Countersunk Magnet Size:
Block Total Long (L):       30 mm
Block Total Height (H):        10 mm
Block Total Width (W):         5 mm
Small Hole Diameter (d):      5 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

Technical Drawing