Custom Magnet Machining Service
Precision CNC machining, wire EDM, diamond slicing, and grinding for sintered NdFeB and ferrite magnets. Achieve complex geometries, tight tolerances, and custom profiles from standard or customer-supplied blanks.
Full Magnet Machining Capability Under One Roof
Magnet machining is exceptionally challenging due to the inherent brittleness and strong magnetic properties of materials like NdFeB. Our in-house facility combines advanced EDM technology with precision CNC grinding and diamond slicing to handle even the most demanding geometries.
Wire EDM
Ideal for complex profiles and narrow slots. We achieve intricate shapes that traditional grinding cannot reach, maintaining high precision without mechanical stress.
Diamond Slicing
Specialized diamond-bonded blades for ultra-thin sections and high-speed wafering of magnetic blocks with minimal kerf loss.
CNC Surface Grinding
Achieve exceptional flatness and parallelism. Essential for high-performance motor assemblies and precision sensor arrays.
Cylindrical Grinding
ID and OD grinding for rods, tubes, and rings. We maintain tight concentricity and roundness for high-speed rotor components.
Profile Grinding
Precision grinding for arc segments, breadloaf shapes, and custom radial profiles used in advanced motor designs.
Finishing & Edge Work
Automated and manual deburring, edge chamfering, and vibration polishing to ensure clean edges for coating adhesion.
Technical Machining Specifications
| Process | Tolerance | Key Capability | Max/Min Size |
|---|---|---|---|
| Wire EDM | ±0.01mm | Complex profiles, zero mechanical stress | 300 × 200 mm |
| Diamond Slicing | ±0.05mm | Ultra-thin sections (0.3mm min) | Up to 150mm width |
| Surface Grinding | ±0.005mm | Flatness & parallelism (Ra 0.4μm) | 400 × 250 mm |
| Cylindrical Grinding | ±0.01mm | OD & ID concentricity (0.005mm) | Dia 2 – 150 mm |
| Milling (Non-Mag) | ±0.05mm | Pockets, slots, holes (aluminum/brass) | Custom jigs & fixtures |
Our Production Process
2. Material Selection
3. Setup & Fixturing
4. Rough Machining
5. Semi-Finish
6. Finish Pass
7. CMM Inspection
8. Demagnetization
9. Surface Coating
10. Re-magnetization
11. Final QC
12. Delivery
Materials We Machine
Precision Applications
Medical Implants
Surgical grade tolerances for micro-magnets used in implantable devices and hearing aids.
Aerospace & Defense
Mission-critical components for guidance systems, actuators, and high-spec sensors.
Research & Prototypes
Rapid machining for lab setups and R&D proofs-of-concept with no MOQ.
High-Performance Motors
Custom arc segments and rotor assemblies for EV and industrial automation motors.
Why Choose Elite for Machining?
In-House EDM
Full control over the wire EDM process for maximum precision and speed.
CMM Every Part
Advanced Coordinate Measuring Machine (CMM) verification for every dimension.
DFM Consultation
Our engineers review your drawings to suggest cost-saving machining strategies.
Fast Turnaround
3-5 days for typical prototypes. We respect your project timelines.
Frequently Asked Questions
Can you machine our supplied magnet blanks?
Yes, we frequently accept customer-supplied material for precision machining. We will conduct a material inspection upon receipt to ensure it meets the requirements for the intended process.
What file formats do you accept for drawings?
We prefer STEP, IGES, or SolidWorks files for 3D data, and PDF or DXF for 2D drawings with tolerances and material specifications.
What is turnaround time for prototype machining?
Standard prototype machining typically takes 3-5 working days, depending on geometry complexity and coating requirements.
Do you offer DFM (Design for Manufacturability) review?
Absolutely. Our engineering team reviews every drawing to identify potential machining risks and suggests optimizations to reduce cost and improve lead times.
Can you re-magnetize after machining?
Yes. Many magnets are machined in a demagnetized state for safety and precision. We offer full re-magnetization to your specified orientation after machining and coating.
Ready to Start Your Machining Project?
Send us your drawings today for a free DFM review and formal quote.