Description

Technical Parameters

Great Magtech (Xiamen) Electric Co., Ltd is one of the most reliable manufacturers and suppliers of custom circle magnets in China. We warmly welcome you to wholesale high quality custom circle magnets from our factory. Good service and reasonable price are available.

Custom Circle Magnets

Custom Circle Magnets. Strong Circle Magnets are the most powerful rare-earth magnets available today. Available in disc and cylinder shapes, Neodymium magnets have magnetic properties that far exceed all other permanent magnet materials. They are high in magnetic strength, moderately priced, and able to perform well in ambient temperatures. As a result, they are the most widely-used Rare-Earth magnets for industrial, technical, commercial, and consumer applications.

GME Magnets specializes in manufacturing and supplying neodymium disc magnets for various industrial applications. We have advanced technology, rich experience, and professional engineering technicians in this field. We provide Custom Circle Magnets and neodymium magnet services.

How to order Disc Magnet?

Our quotation is based on your requests for magnet grade, size, coating, magnetization direction, and quantity

①Size: Includes diameter and thickness.

②Grade: Which grade do you need?

N35-N52; 33M-50M;30H-48H; 30SH-45SH; 30UH-42UH; 30EH-40EH; 33AH

③Coating: Nickel; Zinc; Epoxy; Gold; Silver; Cu or other coating?

The most common coatings are NiCuNi and Zinc coating.

④Magnetization: Axial or diametrical magnetization?

Axial magnetization is common.

⑤Quantity: How many pieces will you need?

Different requirements correspond to different prices, so we need to check this information with you clearly.

Grades:

The Grade of a magnet generally indicates how strong a magnet material is, which is measured by the Maximum Energy Product. The energy product is commonly specified in units of Gauss-Oersted. The higher the grade, the stronger the magnet.

Neodymium Permanent Magnets are graded according to their maximum energy product, which relates to the magnetic flux output per unit volume. Higher values indicate stronger magnets and range from N35 up to N52. The M, H, SH, UH, EH, and AH series can be customized into a wide range of shapes and sizes with precise tolerances. Multiple choices of coatings and magnetization orientations can meet specific customer requirements. Letters following the grade indicate maximum operating temperatures (often the Curie temperature), which range from M (up to 100 °C) to EH (200 °C) to AH (230 °C)

Magnetic Properties

Grade	Remanence Br (T)	Remanence Br (kGs)	Coercivity Hcb (kA/m)	Coercivity Hcb (kOe)	Intrinsic Coercivity Hcj (kA/m)	Intrinsic Coercivity Hcj (kOe)	Max. Energy Product (BH) (kJ/m³)	Max. Energy Product (BH) (MGOe)	Max. Operating Temp (°C)	Density (g/cm³)
N35	1.17–1.22	11.7–12.2	≥859	≥10.8	≥955	≥12	263–287	33–36	≤80	≥7.4
N38	1.22–1.26	12.2–12.6	≥859	≥10.8	≥955	≥12	287–303	36–38	≤80	≥7.5
N40	1.26–1.29	12.6–12.9	≥836	≥10.5	≥955	≥12	303–318	38–40	≤80	≥7.5
N42	1.29–1.32	12.9–13.2	≥836	≥10.5	≥955	≥12	318–342	40–43	≤80	≥7.5
N45	1.32–1.37	13.2–13.7	≥836	≥10.5	≥955	≥12	342–359	43–45	≤80	≥7.5
N48	1.36–1.42	13.6–14.2	≥836	≥10.5	≥955	≥12	358–382	45–49	≤80	≥7.5
N50	1.40–1.45	14.0–14.5	≥836	≥10.5	≥876	≥12	374–406	47–51	≤80	≥7.5
N52	1.42–1.48	14.2–14.8	≥836	≥10.5	≥1114	≥11	389–422	49–53	≤80	≥7.5
N30M	1.08–1.14	10.8–11.4	≥812	≥10.2	≥1114	≥14	223–247	28–31	≤100	≥7.5
N33M	1.14–1.17	11.4–11.7	≥852	≥10.7	≥1114	≥14	247–263	31–33	≤100	≥7.5
N35M	1.17–1.22	11.7–12.2	≥876	≥11	≥1114	≥14	263–287	33–36	≤100	≥7.5
N38M	1.22–1.26	12.2–12.6	≥916	≥11.5	≥1114	≥14	287–303	36–38	≤100	≥7.5
N40M	1.26–1.29	12.6–12.9	≥939	≥11.8	≥1114	≥14	303–318	38–40	≤100	≥7.5
N42M	1.29–1.32	12.9–13.2	≥955	≥12	≥1114	≥14	318–334	40–47	≤100	≥7.5
N45M	1.32–1.38	13.2–13.8	≥987	≥12.4	≥1114	≥14	334–366	42–46	≤100	≥7.5
N48M	1.36–1.42	13.6–14.2	≥1018	≥12.8	≥1114	≥14	358–390	45–49	≤100	≥7.5
N50M	1.39–1.45	13.9–14.5	≥1050	≥13.2	≥1114	≥14	374–406	47–51	≤100	≥7.5
N30H	1.08–1.14	10.8–11.4	≥812	≥10.2	≥1353	≥17	223–247	28–31	≤120	≥7.5
N33H	1.14–1.17	11.4–11.7	≥851	≥10.7	≥1353	≥17	247–263	31–33	≤120	≥7.5
N35H	1.17–1.22	11.7–12.2	≥875	≥11.0	≥1353	≥17	263–287	33–36	≤120	≥7.5
N38H	1.22–1.26	12.2–12.6	≥916	≥11.6	≥1353	≥17	287–303	36–38	≤120	≥7.5
N40H	1.26–1.29	12.6–12.9	≥939	≥11.8	≥1353	≥17	303–318	38–40	≤120	≥7.5
N42H	1.29–1.32	12.9–13.2	≥955	≥12.0	≥1353	≥17	318–334	40–47	≤120	≥7.5
N45H	1.32–1.38	13.2–13.8	≥987	≥12.4	≥1353	≥17	334–366	42–46	≤120	≥7.5
N48H	1.36–1.42	13.6–14.2	≥1026	≥12.9	≥1273	≥16	358–390	45–49	≤120	≥7.5

Our Team

We work closely with customers worldwide through factory visits, technical discussions, and long-term cooperation. By understanding each customer's requirements for magnet size, grade, coating, tolerance, and application, our team can provide more reliable custom neodymium magnet solutions with consistent quality and dependable delivery.

Application of our magnets

Demand for NdFeB magnets has been growing rapidly in global markets, including information technology, Motors, Medical equipment, and more. AMC magnets are widely used in the following areas:

Office Automation - Personal computers, Copiers, Printers

Electrical energy - Flywheels, Wind power stations

Science and Research - ESR(electron spin resonance), Magnetic levitation, Photon generation

Medicine - Dental materials, Imaging

Industry - Industrial robots, FA(factory automation), Televisions, DVD(digital video disc).

Transportation - Small motors, Sensors, Automobiles, EV(electric vehicles, hybrid cars)

Telecommunications - Mobiles communications, PHS(personal handy phone system)

Health care: MRI, medical treatment equipment.

Daily Use -- Magnetic tool holder, magnet clasp for bag and jewelry, Toys application

Our Certificates

Our Neodymium magnets are available in a range of shapes and sizes, offering a superior pull performance to other materials with the same volume, thanks to their NdFeB properties. Explore our wide range of super-strong Neodymium magnets.

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