Hall Effect Sensor Disc Magnet
霍尔传感圆片磁铁
Hall-effect sensor disc magnets are bipolar permanent magnets engineered as the magnetic component of position-sensing systems. A Hall IC detects field polarity and strength at the magnet face and converts it into a digital or analog position signal — used for BLDC commutation, rotary encoders, throttle sensors, and proximity detection.
AIC Engineering controls magnetic axis deviation (declination angle) to within ±3° as standard, with automated 100% measurement and binning into 1°, 2°, or 3° angle classes per your specification. Every disc in a lot is individually sorted — not spot-checked — so batch-to-batch angular consistency meets the tight tolerances required for automated sensor assembly.
Customer-defined spray-mark codes enable full lot traceability from magnet production through your assembly line. Discs are supplied in custom tube packaging sized for direct feed into automated production equipment — no repackaging step on your line.
Key Features
±3° Angle Control
Magnetic declination angle held within ±3°; binned to 1°, 2°, or 3° classes per your drawing or sensor IC requirement.
Automated 100% Binning
Every disc is automatically measured and sorted — not sampled — so each angle bin stays accurate across the full lot.
Spray-Mark Traceability
Customer-specified spray codes or identifiers on each disc for batch, lot, and angle-class traceability.
Custom Tube Packaging
Supplied in customer-designed tubes for unified packaging and direct integration with automated assembly lines.
Angle Classification & Supply Options
Magnetic declination angle, marking, and packaging are configured per your sensor assembly process — send your angle bin, traceability format, and tube specification.
| Option | Description | Typical Use |
|---|---|---|
| 1° Angle Bin | Magnetic axis deviation sorted to ±1° class — tightest angular consistency. | High-resolution encoders, precision BLDC commutation. |
| 2° Angle Bin | Magnetic axis deviation sorted to ±2° class — balanced accuracy and throughput. | Automotive position sensors, industrial encoders. |
| 3° Angle Bin | Magnetic axis deviation sorted to ±3° class — standard tolerance band. | Proximity switches, general Hall-sensor triggering. |
| Automated Sorting | 100% automatic measurement and binning — every disc classified, not spot-checked. | High-volume lines requiring lot-to-lot uniformity. |
| Spray-Mark Coding | Customer-defined spray codes for batch, lot, angle class, or date traceability. | Quality audit, recall traceability, SPC tracking. |
| Custom Tube Pack | Tube length, diameter, and fill count matched to your automated feeder. | Direct feed into pick-and-place or tube-dispense stations. |
Manufacturing & Quality Control
Precision magnet body, controlled magnetisation, automated angle measurement and binning, spray marking, and tube packaging for automated lines.
- Material selection (NdFeB / SmCo / Ferrite)
- Sintering or bonding to disc shape
- Precision grinding to ±0.05 mm tolerance
- Surface coating (Ni / epoxy / Zn)
- Controlled pulse magnetisation
- 100% automated declination-angle measurement
- Binning into 1° / 2° / 3° classes
- Reject segregation & SPC data logging
- Customer spray-mark coding per specification
- Custom tube loading for automated feed
- Lot traceability label on tube
- Shipment in line-ready packaging
Typical Applications
Need Angle-Binned Hall-Sensor Discs?
Send your magnetic declination angle class (1° / 2° / 3°), spray-mark traceability format, and tube packaging specification — we will configure measurement, binning, marking, and line-ready packaging for your automated assembly process.
Discuss Custom RequirementsFrequently Asked Questions
Answers to common questions about our magnets, customisation, ordering and shipping.
- What is the magnetic declination angle tolerance of your Hall sensor disc magnets? +
- AIC controls magnetic declination angle within ±3°, with automated 100% binning into 1°, 2°, or 3° classes per customer requirement for high lot-to-lot consistency.
- How is angle consistency ensured? +
- Every disc is 100% automatically measured and sorted by declination angle — full automated binning, not sampling — so each magnet's angle class is verified before shipment.
- Can Hall sensor magnets be traceably marked and packaged for automation? +
- Yes. Customer-specified spray-mark coding enables traceability, and custom tube packaging feeds directly into automated assembly lines.