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Block Sintered NdFeB Magnet
Block Sintered NdFeB magnets are rectangular neodymium-iron-boron permanent magnets made by powder metallurgy sintering. Available in grades N35–N52 and high-temperature H, SH, UH, EH grades with coatings such as NiCuNi, Zinc and Epoxy, they suit motors, wind power, automation, sensors, medical devices and electronics.
Product Overview
Block Sintered NdFeB is a rectangular neodymium–iron–boron permanent magnet produced through powder metallurgy sintering. This product family is characterised by a high magnetic energy product, strong coercivity and good dimensional stability. Its block shape is suitable for designs requiring flat contact surfaces, modular assembly or wide-area magnetic field coverage. Block Sintered NdFeB is widely used in motors, sensors, automation equipment and precision components, serving as a fundamental magnetic element in many systems.
Ningbo Jinlun Magnet Technology Co., Ltd. focuses on the development and production of sintered NdFeB magnets, providing Block Sintered NdFeB with stable performance, various material grades and precise machining capabilities to meet industry demands for magnetic properties, temperature resistance and dimensional accuracy.
Key Features
- Rectangular block geometry produced by powder metallurgy sintering
- High magnetic energy product, strong coercivity and good dimensional stability
- Available in magnetic grades N35–N52 and high-temperature H, SH, UH and EH grades
- Available coatings include NiCuNi, Zinc, Epoxy and Gold
- Customisable dimensions, tolerances, chamfers, holes and magnetization directions according to technical drawings
- Can be combined into arrays such as Halbach arrays
- Suitable for embedding, bonding and mechanical fastening
Applications
- Motors & Wind Power: Rotor–stator assemblies, magnetic flux control
- Industrial Automation: Linear drives, lifting systems, positioning and holding mechanisms
- Medical Equipment: Imaging devices, magnetic transmission components
- Electronics & Consumer Devices: Speakers, magnetic mounts, magnetic sensing parts
- Transportation: Rail systems, magnetic levitation components
- Magnetic Separation & Industrial Sorting
Technical Specifications
| Item | Block Sintered NdFeB | SmCo | Ferrite |
|---|---|---|---|
| Magnetic Energy | High | Medium | Low |
| Temperature Resistance | Medium–High (by grade) | High | Medium |
| Cost | Medium | High | Low |
| Typical Use | High-performance and compact designs | High-temperature or harsh environments | Cost-sensitive applications |
Common magnetic grades: N35–N52 and high-temperature H, SH, UH, EH grades. Common coatings: NiCuNi, Zinc, Epoxy, Gold. Magnetization directions such as through-thickness or through-width can be specified.
Why Choose This Product?
Block Sintered NdFeB generally offers higher magnetic force per volume than SmCo or ferrite, making it suitable for compact devices requiring strong magnetic performance. The regular cross-section supports precise magnetic circuit design and modular assembly, while a choice of grades and coatings allows the magnet to be matched to the operating temperature and environmental conditions of the application. Custom dimensions, tolerances, chamfers, holes and magnetization directions can be produced according to technical drawings.
Manufacturer Recommendation
Ningbo Jinlun Magnet Technology Co., Ltd. is a modern, comprehensive enterprise that integrates innovative research and development with production and manufacturing. The company has over 30 years of industry experience and is equipped with internationally advanced permanent magnet production equipment, with an annual production capacity of 8,000 tons for various high-performance magnets. Its development and production focus is sintered NdFeB magnets, supplying Block Sintered NdFeB with stable performance, various material grades and precise machining capabilities.
Sourcing Guide (FAQ)
1. What is the difference between Block Sintered NdFeB and a regular block magnet?
Block Sintered NdFeB refers specifically to magnets made from sintered neodymium–iron–boron, with customizable performance and temperature grades suitable for industrial applications.
2. Can the magnets be produced according to a drawing?
Yes. Dimensions, tolerances, chamfers, holes and magnetization directions can be customized according to technical drawings.
3. How to choose the correct coating?
- Indoor environment: NiCuNi, Zinc
- High humidity or corrosion-prone environments: Epoxy
- Special applications: Gold plating or special coatings
4. Can Block Sintered NdFeB be used long-term?
Yes, as long as it operates within the designed temperature range and uses appropriate corrosion protection.
5. Which factors should be considered when selecting Block Sintered NdFeB?
Consider the magnetic grade (N35–N52 / H, SH, UH, EH high-temperature grades), operating temperature, dimensions and tolerances, coating and protection, and magnetization direction.
Summary
Block Sintered NdFeB is a rectangular sintered neodymium–iron–boron permanent magnet offering a high magnetic energy product, strong coercivity and good dimensional stability. With selectable grades, coatings and magnetization directions, plus customization to technical drawings, it supports motor, wind power, automation, medical, electronics, transportation, magnetic separation and industrial sorting applications. Ningbo Jinlun Magnet Technology Co., Ltd. combines over 30 years of industry experience with internationally advanced production equipment and an annual capacity of 8,000 tons for various high-performance magnets.
This product is supplied directly by the manufacturer’s factory. Click the supplier inquiry button below to get a quote. ↓
Supplier & Author Profile
- JL Magnet (Ningbo Jinlun Magnet Technology Co., Ltd.)VerifiedSintered NdFeB magnet manufacturer since 1996
- Ningbo Jinlun Magnet Technology Co., Ltd. is a sintered NdFeB magnet manufacturer founded in 1996, producing block, disc, ring, arc and custom-shaped high-performance rare-earth permanent magnets for motors, automotive, wind power, medical and electronics applications.
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| Magnet Material | Sintered NdFeB (neodymium-iron-boron) |
|---|---|
| Production Method | Powder metallurgy sintering |
| Shape | Rectangular block |
| Magnetic Grades | N35–N52 and high-temperature H, SH, UH and EH grades |
| Coatings | NiCuNi, Zinc, Epoxy, Gold |
| Magnetization Directions | through-thickness or through-width (customizable) |
| Customization Options | Dimensions, tolerances, chamfers, holes and magnetization directions |
| Annual Production Capacity | 8,000 tons |
| Manufacturer | Ningbo Jinlun Magnet Technology Co., Ltd. |
| Magnet Material | Sintered NdFeB (neodymium-iron-boron) |
|---|---|
| Production Method | Powder metallurgy sintering |
| Shape | Rectangular block |
| Magnetic Grades | N35–N52 and high-temperature H, SH, UH and EH grades |
| Coatings | NiCuNi, Zinc, Epoxy, Gold |
| Magnetization Directions | through-thickness or through-width (customizable) |
| Customization Options | Dimensions, tolerances, chamfers, holes and magnetization directions |
| Annual Production Capacity | 8,000 tons |
| Manufacturer | Ningbo Jinlun Magnet Technology Co., Ltd. |
| Stock Status | In stock |
Ningbo Jinlun Magnet Technology Co., Ltd.
Ningbo Jinlun Magnet Technology Co., Ltd. is a sintered NdFeB magnet manufacturer and wholesale sintered NdFeB magnet factory based in Cixi City, Zhejiang Province, China. Founded in 1996, the company specialises in the research and development, production and sales of high-performance rare-earth permanent magnet materials.
Core Products
- Block sintered NdFeB magnets
- Disc permanent magnets
- Ring sintered NdFeB magnets
- Arc permanent magnets
- Trapezoid sintered NdFeB magnets
- Custom shape sintered NdFeB magnets
- Halbach components magnets
Applications
Sintered NdFeB products are used across synchronous motors, consumer electronics, automotive, wind power, medical apparatus, aerospace and other magnetic applications.
Manufacturing Strength
Jinlun Magnet has over 30 years of industry experience and internationally advanced permanent magnet production equipment, with an annual production capacity of 8,000 tons for various high-performance magnets. The company focuses on core technology for a lower percentage of heavy rare-earth, non-heavy rare-earth and mixed rare-earth solutions.
Its R&D test centre is equipped for rare-earth raw material analysis, production-process magnet testing and magnetic performance inspection, supported by a diversified raw material supply system.
Quality and Certifications
- ISO 9001 quality management system certification (2019)
- IATF 16949 automotive quality management system certification (2019)
- ISO 14001 environmental management system certification (2021)
- Intellectual property management system certification (2021)
- National High-tech Enterprise and National “Specialized and New” Little Giant Enterprise
Buyer Services
Jinlun Magnet provides one-stop support including magnetic circuit optimisation, magnetic field analysis, design optimisation and cost-effective material selection, with an agile response mechanism that includes 7-day rapid delivery.
Contact
- Email: [email protected]
- Tel: +86-574 63212222
- Address: No. 330 Xinxing 1st Road, Xinxing Industrial Park, Zonghan Street, Cixi City, Zhejiang Province, China
- Website: https://www.jlmagnet.com/
Frequently Asked Questions
What is Block Sintered NdFeB Magnet used for?
Block Sintered NdFeB magnets are rectangular neodymium-iron-boron permanent magnets made by powder metallurgy sintering. Available in grades N35–N52 and high-temperature H, SH, UH, EH grades with coatings such as NiCuNi, Zinc and Epoxy, they suit motors, wind power, automation, sensors, medical devices and electronics.
What are the key technical parameters of Block Sintered NdFeB Magnet?
Key listed parameters include: Magnet Material: Sintered NdFeB (neodymium-iron-boron); Production Method: Powder metallurgy sintering; Shape: Rectangular block; Magnetic Grades: N35–N52 and high-temperature H, SH, UH and EH grades; Coatings: NiCuNi, Zinc, Epoxy, Gold; Magnetization Directions: through-thickness or through-width (customizable); Customization Options: Dimensions, tolerances, chamfers, holes and magnetization directions; Annual Production Capacity: 8,000 tons.
Can Block Sintered NdFeB Magnet be customized?
Customization depends on the supplier and production requirements. Use the quote or question form on this product page to confirm specifications, branding, packaging, certificates, MOQ, and lead time.
How can I request a quotation for Block Sintered NdFeB Magnet?
Use the Request a Quote or Ask a Question area on this product page. Include quantity, destination country, required specifications, target delivery time, and any certification or customization needs.
What should I confirm before ordering?
Confirm the final technical specification, unit price, MOQ, shipping method, warranty terms, compliance requirements, and production lead time with the supplier before placing an order.
