Countersunk hole round piece neodymium iron boron magnet

Countersunk hole magnet, also known as countersunk hole magnet, is installed and fixed in the desired position by screws. The size of the countersunk hole magnet is generally represented by D, where d1 represents the diameter of the countersunk hole, d2 represents the inner diameter of the straight hole, and H represents the thickness (height).
When it comes to this type of countersunk hole neodymium iron boron magnet, do you feel unfamiliar? Now let me give you a few examples to see if you are familiar with it. On the toys of children at home, especially those robots, there are some large screws on them. Although they seem easy to unscrew, it is really difficult to handle after practice. It feels like something is attracting. This is a special type of circular countersunk hole magnet: screw hole magnet.


1. The composition of the countersunk hole neodymium iron boron magnet material is made up of metal praseodymium neodymium, pure iron, boron iron, and certain metal elements added in a certain proportion through multiple processing steps.
2. NdFeB is divided into sintered NdFeB and bonded NdFeB, commonly known as strong magnets or permanent magnets. Sintered NdFeB magnets have much better magnetic properties than bonded NdFeB magnets.
3. Preparation process: ingredients - melting - powder making - pressing - sintering (sintered neodymium iron boron) - processing - magnetizing to make finished products. The processing process includes grinding, slicing, wire cutting, drilling, threading, electroplating, etc.
4. Surface treatment of curved neodymium iron boron magnets commonly includes galvanizing, nickel plating, nickel copper nickel plating, epoxy resin, electrophoresis, gold plating, etc.

Characteristics of neodymium iron boron magnets with countersunk holes

1. The magnetic force of the countersunk neodymium iron boron magnet is strong, long-lasting, and has a strong load-bearing capacity. It can adsorb and lift objects several times its own volume.
2. Environmentally friendly material, stable magnetic force, strong corrosion resistance, and can generally pass the salt spray test for 96 hours.
3. Resistant to high and low temperatures, using high-quality rare earth neodymium iron boron, ferrite and other materials, with multiple temperature configurations available from -50 ° C to 260 ° C.

Our Advantages
1. Experienced: We are a manufacturer of countersunk hole magnets with many years of experience in the field of permanent magnet materials. We can provide you with a one-stop customized solution for sintered neodymium iron boron strong magnets.
2. Quality assurance: There are many grades and specifications of neodymium iron boron magnets with countersunk holes; Through strict production processes and complete testing, analysis, inspection, and experimentation, we ensure that customer needs are met.
3. Quick delivery: Having multiple production equipment to meet customers' production requirements for permanent magnet materials; Can ensure product quality, deliver on schedule, and provide customized processing services.
4. Attentive after-sales service: Our professional after-sales team and logistics distribution system provide you with one-on-one attentive services for processing and delivery.

Application fields of neodymium iron boron magnets with countersunk holes
Electroacoustic field: speakers, receivers, microphones, alarms, stage audio, car audio, etc.
Electronic appliances: permanent magnet vacuum circuit breakers, magnetic holding relays, electricity meters, water meters, sound meters, reed switches, sensors, etc.
Motor field: VCM, CDDVD-ROM, generators, electric motors, servo motors, permanent magnet motors, micro motors, vibration motors, etc.
Mechanical equipment: magnetic separation, magnetic separator, magnetic hoist, magnetic machinery, magnetic pump, etc.
Healthcare: MRI machines, medical devices, magnetic therapy health products, magnetized fuel saving devices, etc.
Other industries: magnetized wax remover, pipeline descaling device, magnetic fixture automatic mahjong machine, magnetic lock, door and window magnet, luggage magnet, leather magnet, toy magnet, tool magnet, craft gift packaging, etc.

Correct separation method for magnets
1. Slide a magnet out of the top of the stack.
2. Once out of the stack, carefully start lifting the magnet.
3. Long distance suction, please be careful not to break the magnet and pinch your hands.