Powering Medical Innovation with Precision Magnets

Advanced Magnets for Next-Generation Medical Devices

TOPMAG engineers precision NdFeB, SmCo, and Ferrite permanent magnets for critical medical applications, spanning diagnostic imaging, life support systems, minimally invasive surgery, and implantable devices. Our solutions power core components including MRI gradient coils, surgical robot joints, pacemaker sensors, and in vitro diagnostic (IVD) analyzers.

All magnets are produced in ISO 13485 and IATF 16949 certified facilities, ensuring exceptional biocompatibility, thermal stability, and corrosion resistance. We enable smaller, more reliable, and patient-centric medical designs that meet global regulatory standards while accelerating the adoption of next-gen healthcare technologies.

Medical Device Magnet Applications by System

We provide tailored magnet solutions for 4+ core medical systems, with precise grade recommendations based on working temperature, biocompatibility, and environmental requirements.

The application of magnets in the core systems of traditional medical devices:

Medical System	Key Components	Recommended Magnet Grade	Core Performance
Diagnostic Imaging	MRI Gradient Coils, CT Scanner Rotors	NdFeB N42SH / SmCo Sm2Co17	High magnetic homogeneity, low coercivity loss
Life Support	Heart-Lung Machine Pumps, Ventilator Motors	Bonded NdFeB N35H / Ferrite Y35	High torque, low vibration
In Vitro Diagnostics (IVD)	Immunoassay Analyzers, Hematology Sensors	NdFeB N38M / Ferrite Y30	High precision, fast response
Surgical Instruments	Laparoscopic Tools, Electrosurgical Pencils	SmCo SmCo5 / NdFeB N35SH	Corrosion resistance, compact size

Exclusive system magnet application for advanced medical devices:

Advanced Medical System	Key Components	Recommended Magnet Grade	Core Performance
Minimally Invasive Surgery (MIS)	Surgical Robot Joints, Magnetic Graspers	NdFeB N45UH / SmCo Sm2Co17	Zero backlash, high positional accuracy
Implantable Devices	Pacemaker Sensors, Cochlear Implants	Encapsulated SmCo SmCo5 / NdFeB N40EH	Biocompatible, 10+ year lifespan
Wearable Health Monitors	CGM Sensors, ECG Electrodes	Micro NdFeB N35M / Ferrite Y25	Miniaturized, skin-friendly
AI-Powered Diagnostic Tools	Robotic Ultrasound Probes, AI Imaging Systems	NdFeB N42SH / SmCo Sm2Co17	Stable magnetic field, high energy density

Top-Rated Medical Device Magnet Components

Medical-Grade Magnet Types & Key Features

NdFeB and SmCo magnets are the preferred choice for high-performance medical applications due to their superior magnetic energy density and biocompatibility. We also provide Ferrite and AlNiCo magnets for specific low-cost or extreme-temperature scenarios.

Magnet Type	Key Advantages	Typical Medical Applications
NdFeB (Neodymium)	Highest magnetic energy density, customizable biocompatible coatings, high temperature resistance (up to 220°C)	MRI gradient coils, surgical robot joints, wearable sensors
SmCo (Samarium Cobalt)	Excellent high-temperature stability (up to 350°C), corrosion resistance, no demagnetization risk	Implantable devices, high-temperature therapy equipment
Ferrite	Low cost, biocompatible, stable in harsh environments	Non-invasive diagnostic tools, medical valves
AlNiCo	Superior temperature stability (up to 500°C), high residual induction	Precision surgical instruments, MRI calibration tools

High Magnetic Energy Density - (BH)max up to 55 MGOe (228 kJ/m³), enabling miniaturization of implantable and wearable devices
Biocompatible Surface Treatments - Ni-Cu-Ni plating, PTFE coating, epoxy encapsulation (ISO 10993 compliant)
Superior Anti-Demagnetization - HcJ up to 3259 kA/m, maintaining ≥95% magnetic performance after 10,000 cycles of in-body simulation
Strict Quality Control - ISO 13485 certified, 100% batch testing for magnetic flux density, corrosion resistance, and biocompatibility
Extreme Environment Adaptation - Operates reliably from -60°C to 350°C, radiation-resistant (10kGy gamma radiation tolerance)

Custom Medical Device Magnet Solutions

We support full-cycle customization from design to mass production, adapting to your specific component and regulatory requirements.

Customization scope

Shape & Size Customization

Discs, rings, micro-magnets (Ø0.1mm-50mm), complex geometries (arc, multi-pole) - Tolerance: ±0.003mm (precision grade) to ±0.1mm

⚙️ Biocompatible Coating Customization

Ni-Cu-Ni plating, PTFE coating, epoxy encapsulation - Compliant with ISO 10993 standards

🔧 Performance Customization

Magnetic energy product, coercivity, temperature resistance - Tailored to specific in-body or diagnostic requirements

Production and delivery capabilities

✅ Monthly Production Capacity: 200,000+ pieces of medical-grade magnets

✅ Sample Delivery: 3-5 working days (custom prototypes available)

✅ Mass Production Lead Time: 15-25 working days (depending on quantity)

✅ MOQ: 50 pieces (small-batch trial orders supported for clinical trials)

Quality Certification and Testing

Magnetic Flux Density Testing

Coercivity (HcJ) Testing

Biocompatibility Testing (ISO 10993)

Corrosion Resistance Testing (Salt Spray Test ≥48h)

High-Temperature Stability Testing (-60°C to 350°C)

Magnetic Leakage Testing

Why Choose TOPMAG for Medical Device Magnets?

● 1. ISO 13485 Certified Manufacturing

Compliant with global medical device regulations, ensuring patient safety and regulatory approval

● 2. Biocompatibility Expertise

In-house coating lab specializing in medical-grade surface treatments, ISO 10993 compliant

● 3. Full-Cycle Customization

From FEA simulation to mass production, tailored to your device’s unique requirements

● 4. Fast Prototyping & Delivery

3-5 day sample turnaround to support clinical trial timelines

● 5. Regulatory Support

Technical dossiers and compliance documentation to streamline FDA 510 (k) and CE Mark approval

● 6. Global Supply Chain

Dual-source material procurement and global shipping to support medical device manufacturers worldwide