5~50PCS 20×4-5 mm Powerful Magnets 20*4 mm Hole 5mm Small Permanent Round Countersunk Neodymium Magnetic Magnet 20×4-5mm 20*4-5

Specifications:

Material Quality : Neodymium magnets / NdFeB

Type Rating:N35

Plating: Nickel + Copper + Nickel Triple Layer Plated

Certification:RoHS passed

Shape: Circular

Color:Silver

Tolerance: 0~1mm

Max Operating Temperature: 80 Celsius degree / 176 Fahrenheit degree

Magnetic pole direction:Axially magnetized / Poles on Flat Ends

Applications:

1.Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.

2.Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, meter, sound meter, a reed switch, sensors.

3.Electrical field: VCM, CD / DVD-ROM, generators, motors, servo motors, micro-motors, motors, vibration motors.

4.Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery.

5.Healthcare: MRI scanners, medical equipment, magnetic health products and so on.

6.Other industries: magnetized Wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, doors and window magnetic, magnetic luggage, leather magnetic toys, magnetic tools, gifts and packaging.

Notices:

1. The NdFeB magnet is sold by size, the unit of measurement is millimetre, please pay attention to the size.

2. The magnetic property is very strong and the hand is pinched carefully. It is fragile and can be dried and stored at room temperature;

3. The magnet is made of powder powder sintering, which leads to the fragility of physical properties, which is not a quality problem;

4. Only iron can conduct magnetism, and the metal without iron can not be adsorbed;

5.Please do not contact with water. It is easy to rust in humid and corrosive environment;

6.if you have any problems with your order,you can contact us by sending messages in My AliExpress. We will offer a solution.