High-Volume Production, Cost-Effective “Cut” Finish, Consistent Flux Output
We supply Custom Micro AlNiCo Cylinder Magnets.
They are common magnetic components for high-volume sensor and instrumentation manufacturers.
These “Sensor Grade” cylinders are designed to be encapsulated, potted, or over-molded inside your device.
As shown in the product photo, we produce these with a Functional Wire-Cut or Sintered Finish.
This eliminates unnecessary cosmetic polishing.
We can reduce unit costs while maintaining the critical magnetic properties and temperature stability (up to 550°C).
We are not just selling a magnet.
We are supplying the reliable “heart” of your Hall Effect sensor, speedometer, or pick-up coil.
Why Source This from Us?
For Procurement Managers and Production Engineers, the priority is consistency and scalability.
1. “Functional Finish” Cost Savings:
The Observation:
– The magnets in the photo have a textured surface.
The Value:
– This is intentional.
– If your magnet is going to be glued inside a plastic housing or wrapped in copper wire, you don’t need to pay for a mirror polish.
– We supply these with a “Wire EDM Cut” or “As-Sintered” surface.
– This lowers your BOM (Bill of Materials) cost without sacrificing performance.
Bonus:
– The rougher texture actually improves adhesion for epoxy and potting compounds.
2. Batch-to-Batch Consistency (Calibration):
The Pain Point:
– In sensor manufacturing, if the magnetic flux varies between shipments, your assembly line has to stop to re-calibrate the sensors.
Our Promise:
– We maintain strict control over the Alloy Mixture (Al-Ni-Co-Fe).
– We guarantee that the flux output of the 50,000th piece matches the 1st piece.
– This allows your production line to run smoothly without constant recalibration.
3. Scalability & Blanket Orders:
The Capacity:
– We are set up for volume.
– Whether you need 500 prototypes or a monthly delivery of 100,000 pieces, we can meet your needs flexibly.
Technical & Material Specifications
The “Rough” Texture Explained:
The texture visible in the photo is characteristic of Wire Electrical Discharge Machining (EDM) or Sintering.
– Sintered AlNiCo: Best for tiny, complex shapes. Physically stronger than Cast AlNiCo.
– Cast AlNiCo: Higher magnetic energy, but more brittle.
– Tolerance: Despite the rougher look, we hold length/diameter tolerances of ±0.05mm as standard.
Material Data:
– Grades: AlNiCo 2, 5, or 8. (AlNiCo 5 is the industry standard for sensors).
– Temp Rating: Stable up to 550°C.
– Corrosion: inherently rust-proof. No plating required.
Supply Chain: Packaging for Automation
Tiny magnets are a logistics nightmare if packed poorly.
We solve this problem.
– Tube Packing: We can stack these cylinders in plastic tubes for easy feeding into automated pick-and-place machinery.
– Tray Packing: Organized rows for manual assembly.
– Cleanliness: All parts are washed and demagnetized (if required) to ensure no metal swarf or debris enters your cleanroom environment.
Ideal Applications (High Volume)
Hall Effect Sensors: The permanent magnet bias inside automotive position sensors (Crankshaft/Camshaft).
Metering: Pulse-generating magnets in water and gas meters.
Security: Reed switch activators in door/window frames.
Education: Low-cost bulk magnets for science kits.
Request for Quotation (RFQ) Guide
To provide a competitive volume quote, please share:
1). Dimensions: Diameter x Length.
2). Surface Requirement: “Is ‘Wire Cut’ finish acceptable?” (Check yes to save cost).
3). Application: “Is this for a Sensor or a Holding application?” (Helps us select Cast vs. Sintered).
4). Annual Volume: “What is your estimated annual usage?” (Allows us to calculate raw material allocation).
