Factory Price Strong Magnetic Force Round Neodymium Magnet Ring with Hole

• Customization: Available
• Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
• Shape: Ring
• Coating: Customized
• Grade: N35-N54-36H
• Tolerance: +/-0.05mm or Customized
• Lead Time: 10~20 Days After Order Confirmed
• Size: Customized
• Export Markets: Global
• Transport Package: Carton with Crate
• Specification: Customized
• Trademark: Mudi
• Origin: Jiangsu, China
• HS Code: 85051110
• Production Capacity: 1000000 PCS /Month

Product Description

Product Description

NdFeB Permanent Magnet

NdFeB stands as the pinnacle of permanent magnet technology, meticulously engineered from superior raw materials. This remarkable magnet is composed of rare earth metal neodymium (29%-32.5%), iron (63.95-68.65%), and boron (1.1-1.2%), all skillfully augmented with a variety of elements, including dysprosium, niobium, aluminum, and copper. Through an intricate and precise manufacturing process, these elements unite to create the extraordinary permanent magnets that we proudly present to the market today.

Unleash the potential permanent powerful neodymium magnets, Mudi NdFeB magnets are crafted from premium sintered neodymium material. Coated with nickel, zinc, epoxy and gold, these magnets come in a variety of shapes including blocks, bars, cubes, discs, rings, cylinders, spheres, arcs and trapezoids with a density of 7.5-7.6 g/cm³. We guarantee fast delivery: 7-10 days for samples and 20-25 days for mass production. For superior magnetic properties, we explore grades N35-N52 and beyond, each with a specific operating temperature to ensure excellent performance even in extreme conditions.

Type	Permanent Powerful Neodymium Magnets
Material	Sintered Neodymium Magnets
Coating	Ni, Zn, Epoxy, Parylene, Gold, Passivated, etc
Shape	Block, Bar, Cube, Disc, Ring, Cylinder, Ball, Arc, Trapezoid, etc
Density	7.5-7.6 g/cm³
Delivery date	7-10 days for common samples, 20-25 days for mass produciton
Magnetic Grade & Working Temperature	Magnetic Grade		Working Temperature
	N35-N45		80 ºC (176ºF )
	N48-N52		60ºC (160ºF )
	35M-50M		100ºC (212ºF )
	33H-48H		120ºC (248ºF )
	33SH-45SH		150ºC (302ºF )
	30UH-40UH		180ºC (356ºF )
	28EH-38RH		200ºC (392ºF )
	28AH-33AH		220ºC (428 ºF)

	GRADE	BR				HCB		HCJ
		KGs		T		bHc		iHc
		Max	Min	Max	Min	KOe	KA/m	KOe	KA/m
N	N52	14.8	14.2	1.48	1.42	>=10.5	>=836	>=11	>=876
	N50	14.5	14	1.45	1.4	>=11.0	>=876	>=12	>=955
	N48	14.3	13.7	1.43	1.37	>=11.0	>=876	>=12	>=955
	N45	13.8	13.2	1.38	1.32	>=11.0	>=876	>=12	>=955
	N42	13.5	12.9	1.35	1.29	>=11.0	>=876	>=12	>=955
	N40	13.2	12.6	1.32	1.26	>=11.0	>=876	>=12	>=955
M	52M	14.8	14.2	1.48	1.42	>=13.3	>=1059	>=14	>=1114
	50M	14.5	14	1.45	1.4	>=13.1	>=1043	>=14	>=1114
	48M	14.3	13.7	1.43	1.37	>=12.8	>=1019	>=14	>=1114
	45M	13.8	13.2	1.38	1.32	>=12.4	>=987	>=14	>=1114
	42M	13.5	12.9	1.35	1.29	>=12.1	>=963	>=14	>=1114
	40M	13.2	12.6	1.32	1.26	>=11.8	>=939	>=14	>=1114
	38M	13	12.2	1.3	1.22	>=11.5	>=915	>=14	>=1114
H	50H	14.5	14	1.45	1.4	>=12.9	>=1027	>=16	>=1274
	48H	14.3	13.7	1.43	1.37	>=12.7	>=1011	>=16	>=1274
	45H	13.8	13.2	1.38	1.32	>=12.4	>=987	>=17	>=1353
	42H	13.5	12.9	1.35	1.29	>=12.1	>=963	>=17	>=1353
	40H	13.2	12.6	1.32	1.26	>=11.8	>=939	>=17	>=1353
	38H	13	12.2	1.3	1.22	>=11.5	>=915	>=17	>=1353
SH	48SH	14.3	13.7	1.43	1.37	>=12.8	>=1011	>=20	>=1592
	45SH	13.8	13.2	1.38	1.32	>=12.4	>=987	>=20	>=1592
	42SH	13.5	12.9	1.35	1.29	>=12.1	>=963	>=20	>=1592
	40SH	13.2	12.6	1.32	1.26	>=11.8	>=939	>=20	>=1592
	38SH	12.9	12.2	1.29	1.22	>=11.5	>=915	>=20	>=1592
	35SH	12.4	11.7	1.24	1.17	>=11.0	>=876	>=20	>=1592
UH	45UH	13.8	13.2	1.38	1.32	>=12.4	>=987	>=25	>=1990
	42UH	13.5	12.9	1.35	1.29	>=12.1	>=963	>=25	>=1990
	40UH	13.2	12.6	1.32	1.26	>=11.8	>=939	>=25	>=1990
	38UH	12.9	12.2	1.29	1.22	>=11.5	>=915	>=25	>=1990
	35UH	12.4	11.7	1.24	1.17	>=11.0	>=876	>=25	>=1990
EH	42EH	13.5	12.9	1.35	1.29	>=12.1	>=963	>=30	>=2388
	40EH	13.2	12.6	1.32	1.26	>=11.8	>=939	>=30	>=2388
	38EH	12.9	12.2	1.29	1.22	>=11.5	>=915	>=30	>=2388
	35EH	12.4	11.7	1.24	1.17	>=11.0	>=876	>=30	>=2388
AH	32AH	12.1	11.4	1.21	1.14	>=10.7	>=852	>=35	>=2786
	30AH	11.5	10.8	1.15	1.08	>=10.2	>=812	>=35	>=2786
	28AH	11.2	10.4	1.12	1.04	>=9.80	>=780	>=35	>=2786

Production Process of Sintered NeFeB Magnets

Application Fields

Neodymium iron boron magnets are widely used in mechanical, electronic, medical, aerospace and other fields, such as electric motors, sound and vibration equipment, industrial robots, MRI equipment, etc. Meanwhile, neodymium iron boron magnets can also be used to produce high-efficiency high-tech products such as wind turbines, oil pump drilling rigs, and superconducting magnets.

Customized Magnetization Direction

We support different ways of Magnetization according to your requirements.  

Main Product

Company Profile

Nanjing Mudi Magnetic Industry Co., Ltd. emerged in 2023 as a distinguished and pio- neering force in the magnetic industry. Strategi-cally located with two cutting-edge pro- duction and processing centers in Nanjing and Mianyang, we have expertly developed a comp-rehensive full-industry chain support system. This positions us as frontrunners in innovative research,development,and manufacturing of top-tier neodymium iron boron permanent magnets and precise magnetic components. With unrivaled technical prowess and an unyielding drive for innovation, we consistently deliver superior prod- ucts, setting new milestones of excellence in the industry.

At Nanjing Mudi, product quality is the cornerstone of our competitive advantage. Our rigorous and scientific quality assurance system carefully monitors every phase of pro- duction, guaranteeing nothing but excellence. In adherence to our enduring commit- ment to 'Continuous Quality Improvement as the Driving Force,' we adopt advanced management philosophies and an all-encompassing fram-ework that elevate our prod- ucts to the industry's gold standard, securing our leadership stature.

Through our dynamic evolution, Mudi has established profound alliances with presti- gious domestic enterprises, significantly broa-dening the scope of our product applica- tions. Our diverse offerings cater to an expansive range of industries such as doors and windows, electrical engineering, instrumentation and meters, automotive, petrochemi- cal, nuclear magnetic resonance, magnetic therapy and wellness, aerospace, electro- acoustics, and magnetic materials. We deliver essential magnetic solutions across these varied sectors, supporting customer operations with unmatched reliability and in- dustry-leading expertise.

Furthermore, our company excels in providing bespoke service capabilities, meticulously tailored to meet the unique needs of our clients. We adeptly design and manufacture magnetic products in various specifications and offer expert surface treatment solutions. With a steadfast commitment to product quality and exceptional after-sales ser- vice, Nanjing Mudi Magnetic Industry is dedicated to delivering enduring and special- ized technical support, ensuring a brighter and more prosperous future in collaboration with our clients.

Company Advantage

Certifications

Packaging & Shipping

FAQ

1.How long will you give me the reply?
A: We will contact you in 12 hours as soon as we can.

2.Q: Could I get samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.

3.Q: How about the quality of the magnets?
A: We have the certification of ISO, TS and ROSH, we could send the certification test of our company to you.

4.Q: How is the price?
A: As we believe the quality is the most important, we will provide the best quality magnet we can with reasonable price.

5.Q: Could you provide me the shortest lead time?
A: We have materials in our stock, if you really need, you can tell us and we will try our best to satisfy you.

6.Q: Could I visit your factory?
A:Of course, if you need we will help you to visit our factory.

7.Q:lf l have paid, when will you help me to produce?
A: When we have received the money in our account, we will give you the receipt and arrange to produce immediately.If you have anot-her question, pls feel free to contact us.