Wholesale Magnetic Separation of Ore: High-Performance Rare Earth Magnetic Solutions & Industrial Application Guide

Unlocking Peak Beneficiation Efficiency and High-Gradient Iron Ore Recovery with Sintered NdFeB Magnet Technologies by Zhejiang Laysun Magnetics Ltd.

Premium Rare Earth & Permanent Magnet Inventory

Engineered for high-intensity magnetic circuits, separation machinery, and advanced industrial motor applications.

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TECHNOLOGY BREAKTHROUGH

The Engineering Science Behind Magnetic Separation of Ore

Modern beneficiation operations require reliable, ultra-strong magnetic fields to divide valuable metallic ores from non-magnetic gangue materials. Magnetic separators utilize high-grade sintered NdFeB (Neodymium-Iron-Boron) magnets to generate intense magnetic flux fields. These fields are essential for processing iron ore (such as magnetite, hematite, and limonite), chrome, manganese, and rare earth minerals.

By integrating high-performance permanent magnetic material configurations, industrial separators can operate continuously in high-throughput environments without electrical power for the magnetic field itself. This significantly lowers energy bills, reduces downtime, and offers exceptional reliability compared to older electromagnetic separator counterparts.

  • High Remanence (Br): Up to 1.45T for high gradient field zones.
  • Superior Coercivity (Hcj): Resistance to thermal and mechanical demagnetization.
  • Tailored Coatings: Severe chemical, water, and abrasion resistance.
Magnetic Separator Ore Production Factory

About Zhejiang Laysun Magnetics Ltd.

A global leader in the engineering, R&D, and bulk manufacturing of high-grade rare earth magnets since 1999.

Advanced Sintering & Machining Facilties

Production Workshop

Our state-of-the-art manufacturing center spans 100,000 square meters in Sichuan, yielding a massive 5,000-ton annual output.

25+
Years of Industry Expertise (Since 1999)
100,000 m²
Modern Industrial Production Area
300+
Specialist Engineers & Production Staff
5,000 Tons
Annual Rare Earth Magnet Output Capacity

Sintered NdFeB Mechanical & Magnetic Characteristics

Understanding the material specifications required for modern high-performance mining equipment.

Magnet Grade Remanence (Br) - Tesla Remanence (Br) - kGauss Coercivity (Hcb) - kOe Intrinsic Coercivity (Hcj) - kOe Max Energy Product (BH)max - MGOe Max Temp Limit (°C)
N35 1.17 - 1.22 11.7 - 12.2 ≥ 10.9 ≥ 12.0 33 - 36 80
N45M 1.32 - 1.38 13.2 - 13.8 ≥ 12.0 ≥ 14.0 43 - 46 100
N42H 1.28 - 1.32 12.8 - 13.2 ≥ 12.0 ≥ 17.0 40 - 43 120
N40SH 1.24 - 1.28 12.4 - 1.28 ≥ 11.8 ≥ 20.0 38 - 41 150
N38UH 1.21 - 1.25 12.1 - 12.5 ≥ 11.3 ≥ 25.0 36 - 39 180
N35EH 1.17 - 1.21 11.7 - 12.1 ≥ 10.8 ≥ 30.0 33 - 36 200
N33AH 1.13 - 1.17 11.3 - 11.7 ≥ 10.5 ≥ 33.0 31 - 34 220

*Note: Standard magnetic separators for mineral processing generally utilize High Coercivity (H, SH, UH) blocks to prevent demagnetization under temperature stress and vibration.

Global Solutions & Application Scenarios

How our permanent rare earth magnets are integrated into heavy machinery and commercial processing pipelines globally.

Wet Drum Separators (WDS)

Utilized for high-volume recovery of magnetite or ferrosilicon. Custom block NdFeB designs provide a intense gradient magnetic field, maximizing recovery percentages while resisting rust under wet processing conditions.

Overbelt & Suspended Magnets

Installed over conveyor belts to extract coarse tramp iron from run-of-mine ores, saving heavy crushing and milling machinery downstream from major structural damages.

Rare Earth Roll Separators

Using thin belts and highly concentrated magnetic fields created by stacking NdFeB rings with steel pole pieces, perfect for separating weak magnetic minerals such as hematite, ilmenite, and monazite.

Global Geographic Footprint & Logistics Support

Headquartered in Hangzhou, China, Zhejiang Laysun Magnetics Ltd. has built global supply channels, helping international customers across Europe, the Americas, Australia, and Africa source permanent magnetic components directly from our production plants.

Our logistics support ensures swift delivery, sea freight safety protocols, and customs clearance compatibility. We supply rare earth magnets tailored to local quality specifications, ensuring smooth supply chains for mining machinery, electromobility, and robotics.

Key Export Markets Supported:
• North America (USA, Canada)
• European Union (Germany, France)
• Australia & Oceania
• South America & Brazil
Zhejiang Laysun Magnetics Global Presence Map

Classification of Rare Earth Magnet Products

Explore the full portfolio of sintered NdFeB shapes designed for specific industrial configurations.

Neodymium magnets for voice coil motors

Voice Coil Motor Magnets

Ultra-fast response actuators for electronics and aerospace sensors.

Super Strong Custom Ring Neodymium Magnet

Super Strong Custom Rings

Designed for high-frequency dynamic separator rollers and rotors.

Permanent NdFeB Magnet Block Neodymium Magnet

Permanent NdFeB Blocks

The workhorse of industrial cross-belt ore separation systems.

Strong Magnet Neodymium Magnetic Materials

High-grade Magnetic Materials

Premium raw sintered slabs optimized for mechanical slicing and shaping.

Permanent Ring Strong Neodymium Magsafe Magnet

Neodymium Magsafe Rings

Sized perfectly for commercial phone arrays and electronics coupling.

Sintered Neodymium NdFeB Block Magnet for EV

EV Motor Block Magnets

Premium thermal performance classes (SH, UH, EH) for electric drivetrains.

Neodymium Disc Magnets

Neodymium Disc Magnets

Compact dimensions with massive force fields, perfect for smart sensors.

High Quality Permanent Cylinder Neodymium Magnet

Cylinder Neodymium Magnets

Ideal for precision laboratory magnetic traps and clean separation cells.

Neodymium magnets for automotive EPS

Automotive EPS Magnets

Strict automotive standard control for electrical power steering systems.

Neodymium Block Magnet

Standard Neodymium Blocks

Versatile and cost-effective blocks suitable for structural locking arrays.

NdFeB Arc Segment Strong Motor Magnets

NdFeB Arc Segments

Perfectly curved profiles optimized for motors, turbines, and drum separators.

Magnet Circle For Magnetic Ring For Phone

Mobile Phone Magnetic Rings

Thin, high-cohesion rings designed for consumer electronics hardware.

Technology Roadmap & Future Outlook

Pioneering cleaner, more energy-efficient extraction and refining methodologies.

Dysprosium (Dy) Reduction Technology

Utilizing grain boundary diffusion (GBD) processes to reduce reliance on heavy rare earths like Dysprosium and Terbium. This achieves high thermal stability while lowering manufacturing costs.

AI-Assisted Magnetic Circuit Modeling

By simulating separator operations using finite element analysis (FEA), we design custom magnetic arrays that boost magnetic flux gradients by up to 20% compared to traditional configurations.

Eco-friendly Recycled Magnetics

Implementing closed-loop recycling processes for post-consumer and post-industrial sintered NdFeB scrap, providing green certified magnetic solutions for sustainable mining operators.

Quality Compliance Certificate
STANDARDS & CERTIFICATIONS

Strict E-E-A-T Quality and Environmental Compliance

Zhejiang Laysun Magnetics Ltd. meets strict quality guidelines for high-stakes industrial applications. Our systems are certified under major standards, including ISO 9001 and ISO 14001, ensuring every production batch meets chemical and mechanical tolerances.

We maintain API 6D, API 607, CE, ISO18001, and TS certifications. If your mining project or manufacturing line requires certified raw materials, we can provide compliance certificates covering REACH, RoHS, and mineral origin audits.

API 6D Certified ISO 9001:2015 CE Certified TS / IATF 16949

Industrial Q&A: Magnetic Separation of Ore

Read detailed technical answers on choosing, installing, and maintaining rare earth magnets for heavy-duty beneficiation equipment.

What makes sintered NdFeB magnets better than Ferrite magnets in ore separators?
Sintered NdFeB magnets offer significantly higher magnetic flux density (Br) and energy product (BHmax) compared to traditional ceramic ferrite magnets. This allows separators to generate steep magnetic gradients capable of capturing weakly magnetic minerals like hematite and limonite, which standard ferrite setups miss.
How do you protect the rare earth magnets from corrosion in wet magnetic separators?
Wet drum separators expose magnets to constant moisture and abrasive slurries. We apply multi-layer protective coatings such as Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy, or heavy-duty polyurethane/rubber encapsulation to prevent oxidation and extend performance life.
What are the maximum operating temperatures for your magnets before demagnetization?
Standard N-grade NdFeB magnets operate up to 80°C. For hotter environments, we manufacture M (100°C), H (120°C), SH (150°C), UH (180°C), EH (200°C), and AH (220°C) thermal classes. Selecting the proper coercivity grade ensures your magnetic circuit remains stable in hot climates.
Can Zhejiang Laysun Magnetics supply custom block and segment sizes for existing separator drums?
Yes, we specialize in OEM/ODM fabrication. We cut block, disc, ring, and arc segment magnets to custom blueprints, ensuring new or replacement magnetic elements fit perfectly into your magnetic separator drum assembly.
What quality assurance processes are performed at your factory?
We employ a complete quality control loop: flux measurements, demagnetization curve analysis, salt spray testing for coatings, environmental chamber thermal testing, and coordinate measuring machines (CMM) to verify physical dimensions.

Explore Additional Rare Earth Magnet Configurations

Review our specialized industrial magnets, including block, cylinder, ring, and pot options for global delivery.

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Request Technical Specifications & Pricing Quotes

Are you planning a new mineral processing line, upgrading existing magnetic separation drums, or searching for a reliable wholesale supply partner? Send us your requirements, and our engineering team will follow up within 24 hours.