製品
地球磁石
Our earth magnets, the common industry nickname for high-performance neodymium iron boron (NdFeB) magnets, are celebrated for their extraordinary magnetic strength – capable of lifting up to 800 times their own weight. As a fully integrated manufacturer with 30 years of expertise, we produce earth magnets from 95%+ purity virgin neodymium raw materials (no recycled content) using a proprietary sintering process that optimizes magnetic uniformity and durability. Unlike generic earth magnets on the market, our products undergo rigorous multi-stage quality control, ensuring consistent performance, tight dimensional tolerances (±0.01mm), and compliance with international standards for automotive, renewable energy, and consumer electronics sectors worldwide.
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製品説明
Industrial Earth Magnets: Ultra-High Strength Neodymium Magnets for Global Applications
Key Advantages of Our Earth Magnets
Unmatched Magnetic Strength-to-Size Ratio
Our earth magnets deliver a magnetic energy product up to 52 MGOe (416 kJ/m³) and remanence up to 1.48T – 10 times stronger than traditional ferrite magnets and 3 times stronger than samarium cobalt magnets of the same size. This exceptional strength-to-size ratio allows our clients to downsize their product designs by up to 35% without sacrificing performance, reducing material costs and improving energy efficiency in high-power applications.
Proprietary Alloy for Long-Term Stability
We formulate our earth magnets with high-cost dysprosium iron alloy (not low-grade holmium iron) to enhance magnetic stability and reduce flux loss. This advanced formula ensures our earth magnets maintain 95% of their original magnetic strength for over 10 years of continuous use, even in industrial environments with temperature fluctuations up to 80°C. For high-temperature applications, our SH/UH-grade earth magnets withstand temperatures up to 180°C without performance degradation.
Precision Customization for Every Need
Our CNC machining centers produce earth magnets in nearly any shape – including blocks, discs, rings, arcs, and fully custom profiles – with sizes ranging from 0.2mm (ultra-thin precision components) to 300mm (large industrial magnets). Every earth magnet is finished with a uniform Ni-Cu-Ni triple-layer electroplating (5μm per layer) that passes 720-hour salt spray tests, providing exceptional corrosion resistance for marine, chemical, and outdoor applications.
Technical Specifications of Earth Magnets
The table below outlines the standard grades and performance metrics for our earth magnets. Custom grades, coatings (Zn, Epoxy, Au, Ag), and magnetization directions are available to meet your specific application needs, including high-corrosion, high-temperature, or precision assembly requirements.
| Grade | Typical Shape & Dimensions (mm) | Remanence (Br) mT | Magnetic Energy Product (BHmax) MGOe | Max Operating Temp (°C) | Lifting Capacity (kg) for 20x20x10mm Magnet |
|---|---|---|---|---|---|
| N40 | Discs (8x2-50x10mm), Blocks (15x10x5-80x40x20mm) | 1260-1280 | 38-40 | 80 | 12 |
| N45H | Cylinders (10x10-30x30mm), Arcs (25x15x8-60x30x15mm) | 1350-1370 | 43-45 | 120 | 14 |
| N52 | Large Blocks (50x25x15-200x100x50mm), Custom Profiles | 1450-1480 | 50-52 | 80 | 16 |
| N50SH | Precision Components (0.2mm-150mm), Industrial Magnets | 1430-1450 | 48-50 | 150 | 15 |
Quality Assurance & Global Compliance for Earth Magnets
Every batch of earth magnets undergoes a rigorous 16-step quality inspection process to ensure compliance with international standards. Our quality lab uses X-ray fluorescence spectrometers to verify raw material purity, digital gauss meters to test magnetic performance, and coordinate measuring machines (CMM) to validate dimensional accuracy. We maintain full traceability for every earth magnet, from raw material lot numbers to final shipping documentation, ensuring complete accountability for our global clients. Our earth magnets comply with IATF 16949 (automotive), ISO 9001, REACH, RoHS 2.0, California Prop 65, and EN71, enabling seamless export to Europe, North America, Asia-Pacific, and Latin American markets.
IATF 16949:2016 ISO 9001:2015 REACH Compliant RoHS 2.0 Certified SGS 300+ Tests Passed
Packaging & Flexible Delivery for Earth Magnets
Due to their extreme magnetic strength, our earth magnets require specialized packaging to prevent magnetic interference, chipping, and demagnetization during transit. Each earth magnet is individually wrapped in magnetic-shielding anti-static film and placed in custom foam inserts within 8-cell reinforced plastic trays, then packed into export-grade corrugated cartons with additional magnetic shielding layers. We offer flexible delivery options: free sample shipments (5-10 standard earth magnets) with 3-5 day express delivery, small-batch production (1-2 weeks lead time), and mass production (2-4 weeks lead time) with payment terms including T/T, L/C, and PayPal to suit your business model.
Source High-Quality Earth Magnets Direct from the Manufacturer
Whether you need standard earth magnets or fully customized high-strength solutions, our team of magnetic engineering experts provides free technical support – including magnetic circuit design, material selection, and sample testing. With 30 years of focus on advanced magnetic materials, we deliver earth magnets that balance unbeatable strength, precision, and reliability for your most critical industrial applications.
Contact us 24/7 via WhatsApp/WeChat/Tel: +86-18226620303 | Sample delivery: 3-5 business days
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