Large Neodymium Magnets– Fullzen Technology Factory Direct Wholesale & Custom Supplier
Fullzen Technology as a leading source manufacturer, we specialize in producing high-performance large neodymium magnets for industrial, commercial, and research applications. We support wholesale, customization, and comprehensive CRM services. Our products are widely used in heavy-duty clamping, magnetic separation, scientific research, marine recovery, and educational demonstrations.
Our Large Neodymium Magnet Samples
We offer a variety of large neodymium magnets in forms such as block magnets, cube magnets, ring magnets, and disc magnets, available in grades from N35 to N52 and multiple coating options. Request a free sample to test magnetic strength and suitability before placing bulk orders.
Large Neodymium Magnets
Large Neodymium Disc Magnets
Large Neodymium Magnets Cube
Large Neodymium Arc Magnets
Request a Free Sample – Test Our Quality Before Bulk Order
Custom Large Neodymium Magnets – Process Guide
Our production process is as follows: After the customer provides drawings or specific requirements, our engineering team will review and confirm them. After confirmation, we will make samples to ensure that all products meet the standards. After the sample is confirmed, we will carry out mass production, and then pack and ship to ensure efficient delivery and quality assurance.
Our MOQ is 100pcs,We can meet customers' small batch production and large batch production. The normal proofing time is 7-15 days. If there is magnet stock, the proofing can be completed. within 3-5 days. The normal production time of bulk orders is 15-20 days. If there is magnet inventory and forecast orders, the delivery time can be advanced to about 7-15 days.
What Are Large Neodymium Magnets?
Definition
Large Neodymium Magnets are powerful permanent magnets made from an alloy of neodymium, iron, and boron (NdFeB). They are a specific subset of the strongest commercially available type of magnet, distinguished primarily by their physical size and the resulting immense magnetic force.large neodymium magnets are the powerhouse workhorses of the magnet world. Their combination of massive strength and relatively compact size makes them indispensable in modern technology, industry, and clean energy, but they demand the utmost respect and caution in handling.
Shape types
Large neodymium magnets are mainly in the shape of arcs, rings, and blocks, highly dependent on their ultimate use. The primary purpose of their shape is to construct efficient magnetic circuits in specific systems, and the matching of magnetization direction and shape is the key to achieving high performance.
Key Advantages:
Extremely high magnetic energy product: capable of storing and releasing the maximum amount of magnetic energy.
Extremely high coercivity: stable and reliable performance, long service life.
Excellent energy density and efficiency: can significantly improve energy efficiency ratio and power density.
Wide compatibility: suitable for heavy-duty applications in multiple scenarios.
Technical Specifications
Applications of Large Neodymium Magnets
Why Choose Us as Your Large Neodymium Magnets Manufacturer?
As a Magnet manufacturer factory, we have our own Factory based in China,and we can provide you OEM/ODM services.
Source Manufacturer: Over 10 years of experience in magnet production, ensuring direct pricing and consistent supply.
Customization: Supports different shapes, sizes, coatings, and magnetization directions.
Quality Control: 100% testing of magnetic performance and dimensional accuracy before shipment.
Bulk Advantage: Automated production lines enable stable lead times and competitive pricing for large orders.
IATF16949
IECQ
ISO9001
ISO13485
ISOIEC27001
SA8000
Full Solutions From Neodymium Magnet Manufacturer
Fullzen Technology is ready to help you with your project by developing and manufacturing Neodymium Magnet. Our assistance can help you complete your project on time and within budget. We have several solutions to help you succeed.
Supplier Management
Our excellent supplier management and supply chain control management can help our clients to obtain a quick and accurate delivery of quality products.
Production Management
Every aspect of production is handled under our supervision for uniform quality.
Strict Quality Management And Testing
We have a well-trained and professional (Quality Control) quality management team. They are trained to manage the processes of material procurement, finished product inspection, etc.
Custom Service
We do not only provide you with a high-quality magsafe rings but also offer you custom packaging and support.
Document Preparation
We will prepare the complete documents, such as bill of material, purchase order, production schedule, etc., according to your market requirements.
Approachable MOQ
We can meet most customers' MOQ requirements, and work with you to make your products unique.
Packaging details
Start Your OEM/ODM Journey
FAQs about Large Neodymium Magnets
We offer flexible MOQs, starting from small batches for prototyping to large-volume orders.
Standard production time is 15-20 days. With stock, delivery can be as fast as 7–15 days.
Yes, we provide free samples for qualified B2B clients.
We can provide zinc coating, nickel coating, chemical nickel, black zinc and black nickel, epoxy, black epoxy, gold coating etc...
Thicker magnets generally offer higher pull force, but optimal thickness depends on the application.
Yes, with appropriate coatings (e.g., epoxy or parylene), they can resist corrosion and perform reliably in harsh conditions.
Professional Guide: How to Choose Large Neodymium Magnets
Determine the Critical Material Properties (Grade)
Neodymium magnets are graded (e.g., N42, N52, 42SH). The grade indicates the Maximum Energy Product (BH)max, but other letters/numbers are often more important for large magnets.
Number (e.g., 42, 52): Indicates the maximum energy product in MGOe. A higher number means greater strength at room temperature. For large magnets, the highest grade (N52) is often not optimal due to lower temperature resistance and higher cost.
Letter Suffix (N,M, H, SH, UH, EH,TH): This is often the most critical choice. It indicates the magnet's maximum operating temperature and intrinsic coercivity (resistance to demagnetization).
Recommendation: For large magnets, prioritize temperature grade over maximum strength. An N42SH is typically a more robust and reliable choice than an N52 for most industrial applications.
Coating Selection & Lifespan in Large Neodymium Magnets
Different coatings offer varying levels of protection:
- Nickel: Good overall corrosion resistance, silver appearance.
- Epoxy: Effective in humid or chemical environments, available in black or gray.
- Parylene: Superior protection for extreme conditions, often used in medical or aerospace applications.
Selecting the correct protective coating is crucial. A nickel plating is common for humid environments, while more resistant coatings like epoxy, gold, or PTFE are essential for acidic/alkaline conditions. Coating integrity without damage is paramount.
Calculate Required Geometry, Size, and Pull Force
Shape follows function. Work with your magnet supplier's engineers.
● Shape: Choose based on force direction and mounting
Blocks/Prisms: For flat holding, stacking.
Discs/Cylinders: For axial force through thickness.
Rings: For applications requiring a central opening (shafts, sensors).
● Size & Force:
Pull Force: The advertised "pull force" is against a thick, perfectly flat, clean steel plate. Real-world force is often 30-70% less.
Use Engineering Formulas/Software: Suppliers provide calculators. Key factors are magnetization direction, thickness (along the direction of magnetization), and contact area.
Rule of Thumb for Lifting: Safety factors of 3:1 to 5:1 are standard. A magnet rated for 1,000 lbs should only be used to lift ~200-330 lbs.
Your Pain Points and Our Solutions
● Magnetic strength not meeting requirements → We offer custom grades and designs.
● High cost for bulk orders → Minimum cost production that meets requirements.
● Unstable delivery → Automated production lines ensure consistent and reliable lead times.
Customization Guide – How to Communicate Efficiently with Suppliers
● Dimensional drawing or specification (with Dimensional unit)
● Material grade requirements (e.g. N42 / N52)
● Magnetization direction description (e.g. Axial)
● Surface treatment preference
● Packaging method (bulk, foam, blister, etc.)
● Application scenario (to help us recommend the best structure)
