Our High Precision strong performance Custom Rectangle NdFeB magnets deliver exceptional magnetic strength, accuracy, and long-lasting reliability. Manufactured from premium rare earth materials, these neodymium block magnets are ideal for motors, sensors, industrial equipment, and engineering projects. Designed for consistent high performance, they provide durable magnetic solutions tailored to demanding industrial and custom application requirements.
High Precision strong performance Custom Rectangle NdFeB magnets
Product Overview
Nickel Coated Rectangle NdFeb Magnets Diametrical Magnetized High Precision and strong performance Custom Rectangle NdFeB magnets, featuring extremely high magnetic strength, excellent demagnetization resistance, and precise dimensional accuracy. The product's precision can be customized according to customer requirements. Its sophisticated ring-shaped design meets high-performance magnetic needs in compact spaces, making it widely applicable in high-end electronic devices, audio equipment, premium perfume bottle caps, and other fields.
The magnet is manufactured using advanced wire cutting, center-less grinding, and double-disc grinding processes, ensuring neat edges and uniform dimensions. Surface treatment includes multi-layer metal coating (Ni+Cu+Ni) or optional Ni coating, effectively preventing oxidation and corrosion from environmental factors, thereby extending the product's service life.
These NdFeB arc magnets exceeded our expectations in high-speed motor applications. High Precision and strong performance Custom Rectangle NdFeB magnets The strong magnetic force and precision arc shape made assembly seamless, and the Nickel coating provided excellent durability against corrosion. Ideal for our brushless motor production line
Technical Specifications:
Product Name | High Precision and strong performance Custom Rectangle NdFeB magnets |
Material Grade | N52 (Br ≥ 14.2 kGs, Hcj ≥ 12 kOe) |
Dimension | D20-D20×6 mm |
Dimensional Tolerance | ±0.05 mm (length/width/thickness) |
Operating Temperature | ≤80℃ (high-temperature versions customizable) |
Density | ≥7.5 g/cm³ |
Surface Magnetic Field | 3200 ± 200 Gauss (measured with Japanese TM-801 Gauss meter)
|
Magnetic Flux Value | 2.3 mWb (measured with fluxmeter) |
Manufacturing Process
The product is manufactured through the following key processes:
l Wire Cutting: Uses molybdenum/copper wire cutting equipment to achieve ±0.02mm precision for small-batch custom rings.
l Centerless Grinding: Refines inner and outer diameters to ensure roundness (±0.05mm tolerance).
Double-Disc Grinding: Controls thickness and parallelism
Apperance & Dimensional Inspection
Visual Inspection: Under standardized lighting, trained QC staff check for cracks, chipping, inclusions, pores, or oxidation.
Image Measurement System: High-res cameras and algorithms conduct non-contact 2D measurements, especially for complex or irregular shapes, ensuring efficiency and objectivity in mass production.
Automated Intelligent Inspection: High-speed cameras with AI algorithms detect and reject defects (e.g., cracks, scratches, discoloration) and dimensional anomalies, improving yield and reducing human error.
Magnetic Flux Consistency Test: Fluxmeters or Hall-effect testers measure magnetic flux across batches to ensure uniform performance in end-user applications.
Reliability Test
Impact & Vibration Test: Simulates shipping and usage conditions to ensure operational stability.
Constant Temperature & Humidity Test: Performed under 85°C and 85% RH for 96–500 hours. Performance and appearance are compared before and after testing.
Packaging & Transportation
Defect Elimination: 100% inspection using calipers, projectors, visual checks, and automated systems to reject cracked, chipped, oxidized, or coated-defective magnets.
Uniform Magnetization & Structured Arrangement: Magnets are uniformly magnetized and arranged for optimal packaging based on customer requirements to ensure performance and facilitate automated assembly.
Vacuum Sealed Packaging: Multi-layer vacuum sealing with moisture barriers, desiccants or nitrogen, prevents corrosion and magnetic interference during storage and shipping.
Customized Outer Packaging: Shock-proof, moisture-resistant, and anti-magnetic leakage packaging (e.g., multilayer cartons, plastic boxes, metal shielding) ensures compliance with international logistics standards. Each box includes a product list, labels, and tracking codes.
We understand logistics is more than just transport — it's about your commitment and customer satisfaction. Our solutions offer:
Global logistics support
End-to-end visual tracking
Multiple layers of transport safety
One-on-one customer service for tailored shipping plans
With our reliable land, sea, and air logistics network, we empower your business to go further and soar higher.
FAQ
Q: How to choose the correct magnetization direction?
Axial Magnetization: Magnetic lines flow through thickness — best for concentrated fields
Radial Magnetization: Magnetic lines radiate outward — for uniform field distribution
Multipole Magnetization: Multiple poles along circumference — for complex fields (e.g., motors, sensors)
Q: What is the maximum working temperature of magnet?
Standard N-series: up to 80°C
High-temp grades (SH/UH/EH): up to 150°C–230°C
Dysprosium-enriched formulations can further enhance temperature resistance
Why choose us ?
Dongguan Jinconn New Material Holdings Co., Ltd. is a publicly listed enterprise offering integrated R&D, manufacturing, and sales of rare earth magnets. Based in Xiaohe Industrial Zone, Daojiao Town, Dongguan, we serve clients across China and globally.
With over a decade of expertise in magnetic materials and precision magnet manufacturing, we understand the technical demands of a wide range of industries.
Our in-house engineering and tooling teams enable us to offer custom-shaped, high-precision, and application-specific magnets tailored to your unique requirements.
We adhere to international standards including ISO 9001, ISO 14001, and IATF 16949, with strict quality control from raw materials to finished products.
With deep expertise in magnetic materials, we deliver solutions for industries like EVs, smart manufacturing, and electronics. Our strong technical capabilities and product consistency have earned the trust of customers worldwide.
Usage Precautions
Handle gently: Avoid impacts/drops (brittle material).
Prevent pinching: Slide magnets apart—do not pry.
Polarity check: Install correctly to avoid malfunctions.
Avoid moisture/acids: Store in dry, mild environments.
Keep away from sensitive devices: Hard drives, IC cards, pacemakers, etc.
Customization & Service
Custom magnet size, shape, and coating (layers, thickness, color)
Tailored magnetization direction and field strength
Laser engraving service for logos or serial numbers
Packaging and suction force testing for special applications
Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates!
We’re here to help!
Phone/WhatsApp/WeChat:+86 180 3822 5893
Email: info@jinconn.com
Website: www.jinconnmagnet.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong, China
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