Custom & Micro › Precision Micro Magnets
Precision Micro Magnets
Ultra-small NdFeB magnets for hearing aids, TWS earphones, MEMS, and surgical instruments. Industry-leading ±0.02mm tolerance for mission-critical miniaturization.
OD from 0.5mm
Smallest Dia
Where Precision Meets Miniaturization
Elite Magnets specializes in sub-millimeter magnetic solutions. Our precision micro magnets are produced using advanced wire EDM and diamond slicing to ensure structural integrity and magnetic performance at ultra-small scales.
- ✓ Min OD 0.5mm
- ✓ ±0.02mm precision
- ✓ Medical-grade Ni-Au-Parylene
- ✓ Biocompatible options
- ✓ 100% CMM inspection
- ✓ Tape & Reel packaging
Micro-Manufacturing Process
NdFeB Block
→
Wire EDM Cutting
→
Diamond Slicing
→
Precision Grinding
→
CMM Inspection
→
Coating
→
Magnetization
→
100% Optical+Flux Check
→
Tape & Reel Packaging
Technical Specifications
| Parameter |
Capabilities |
| Min Diameter |
0.5mm |
| Min Length |
0.3mm |
| Tolerance |
±0.02mm |
| Material |
N35-N52 sintered NdFeB |
| Shapes |
Disc, cylinder, cube, custom |
| Coatings |
Ni/Au/Ag/Parylene/PTFE |
| Packaging |
Tape & Reel or Bulk |
| Traceability |
Full batch records provided |
Precision Applications
Hearing Aids
Miniature magnets for receivers and microphones with bio-compatible coatings.
TWS Earphones
Ultra-compact driver magnets and lid-sensing magnets for next-gen audio gear.
Endoscopic Cameras
Micro-positioning magnets for surgical imaging systems and capsules.
MEMS Gyroscopes
Precision magnetic references for micro-electromechanical systems.
Micro Dental Drills
High-speed magnetic bearings and motor rotors for dental handpieces.
Smart Wearables
Charging and latching magnets for rings, watches, and health trackers.
Why Choose Elite for Micro Magnets
Micro-Precision Tooling
In-house wire EDM and diamond grinding specifically for sub-1mm parts.
CMM Every Part
Every batch is 100% verified using video measuring systems and CMM.
Medical Coatings
USP Class VI Parylene and medical-grade Gold/Nickel plating available.
Full Traceability
Full material and process traceability for aerospace and medical compliance.
Frequently Asked Questions
What is the smallest micro magnet you can produce?
Our standard capability starts at 0.5mm OD for cylinders and discs, and 0.3mm for total length. We can push further for specific R&D projects.
How do you ensure quality for magnets under 1mm?
We use high-resolution optical CMM and vision systems that can measure tolerances down to 5 microns without touching the part.
Do you offer tape-and-reel supply?
Yes, for high-volume automated assembly, we provide magnets in carrier tape (tape-and-reel) to prevent sticking and simplify pick-and-place.
Which coating is best for implantable medical magnets?
Parylene C or Gold (with a Ni base) are the most common for biocompatibility. We can provide full COA and USP certification for the coatings.
How are micro magnets packaged for shipping?
We use anti-static trays or specialized vials to ensure magnets don’t aggregate or damage their edges during transit. Degaussed shielding is used for air freight.
ISO 9001RoHSREACHMedical-Grade NiCOA Included
