Neodymium Countersunk Magnets Custom

Neodymium countersunk magnets are a functional type of permanent magnets. These magnets have a countersunk hole, so they are easy to fix onto surfaces by using a matching screw. Neodymium (Neo or NdFeB) magnets are permanent magnets, and part of the rare-earth magnet family. Countersunk neodymium magnets have the highest magnetic properties and are the most powerful commercially available magnets today. 

Neodymium Countersunk Magnets

Neodymium Countersunk Magnets Manufacturer,factory In China

Neodymium countersunk magnets, also known as round base, round cup, cup or RB magnets, are powerful mounting magnets made with neodymium magnets in a steel cup with a 90° counterbore on the work surface to accommodate standard Flat head screws.

We manufacture countersunk head magnets by drilling holes in cylinders and then using internal chamfering machines and other processes.

The countersunk neodymium magnets have much domestic and business uses. They can only work with countersunk screws as they are very brittle and fragile magnets.

Fullzen Magnetics specializes in manufacturing and building custom industrial magnets & magnetic assemblies.Contact us for a quote on custom rare earth magnets.

Optimized performance and cost to your company’s needs.

High quality.

Free samples.

REACH & ROHS compliance.

Couldn’t find what you looking for?

Generally, there are stocks of common neodymium magnets or raw materials in our warehouse. But if you have special demand, we also provide customization service. We also accept OEM/ODM.

What we can offer you…

Best Quality

We have rich experience in the manufacture, design and application of neodymium magnets, and served more than 100 customers from worldwide.

Competitive Price

We have an absolute advantage in the cost of raw materials. Under the same quality, our price is generally 10%-30% lower than the market.


We have best shipping forwarder, available to do Shipping by Air, Express, Sea, and even door to door service.


Application of Neodymium Countersunk Magnets

Neodymium cup magnets are used for any application where high-magnetic strength is required. They are ideal for lifting, holding & positioning, and mounting applications for indicators, lights, lamps, antennas, inspection equipment, furniture repair, gate latches, closing mechanisms, machinery, vehicles & more.

Neodymium Countersunk Magnet Specification

Material: Sintered Neodymium-Iron-Boron ( NdFeB )

Size: Custom

Shape: Countersunk

Performance: Customized (N33 N35 N38 N40 N42 N45 N48 N50 N52 ……)

Coating: Nickel/ Customised (Zn, Ni-Cu-Ni, Ni, Gold, Silver, Copper, Epoxy, Chrome, etc)

Size tolerance: ±0.05mm for diameter /thickness, ±0.1mm for width/ length

Magnetization: Thickness Magnetized, Axially Magnetized, Diametrally Magnetized, Multi-poles magnetized, Radial Magnetized. (Customized specific requirements magnetized)

Max. Working Temperature:

N35-N52: 80°C (176°F)

33M- 48M: 100°C (212°F)

33H-48H: 120°C (248°F)

30SH-45SH: 150°C (302°F)

30UH-40UH: 180°C (356°F)

28EH-38EH: 200°C (392°F)

28AH-35AH: 220°C (428°F)

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