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China-based sensor magnet manufacturer. OEM customization, magnetic assemblies, quality control, and global delivery from Ganzhou and Dongguan.

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[email protected]

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Include drawing, dimensions, material, coating, magnetization, quantity, and delivery location.

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+86 18857971991

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Direct channel for RFQ details and engineering clarification.

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  • Hall Sensor Magnets
  • Multipole Ring Magnets
  • Magnetic Assemblies
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  • Position Sensing
  • Speed and RPM Sensing
  • Proximity Switching
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  • Assembly Engineering
  • Coating Control
  • OEM Supply Programs
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Multipole Ring Magnets

Multipole ring magnets for rotary sensing, speed feedback, encoders, and commutation reference systems where pole count, phase alignment, and runout matter.

Target Buyer:Best for OEMs that need a repeatable magnetic pole pattern matched to an angular sensor or speed pickup.
Multipole ring magnet for rotary sensing

Multipole Ring Magnets reference visual for buyer-side RFQ and sample validation.

Capability Highlights

  • Custom pole count and magnetization pattern review
  • Ring, arc, and rotor-carrier options for rotary sensor packages
  • Support for Hall, magnetoresistive, and encoder-style sensing concepts
  • Engineering review for concentricity, runout, and assembly reference marks

Typical Applications

  • Rotary encoders and angle sensing
  • Motor speed and RPM detection
  • Pump, fan, and actuator feedback
  • Robotics and automation modules

Engineering Focus

  • Define pole count, pole width, phase reference, and magnetization pattern
  • Review ring geometry, inner/outer diameter tolerance, concentricity, and mounting method
  • Align magnetic signal target with sensor location, air gap, and rotation speed
  • Specify handling and inspection notes for pole identification and assembly reference

Key Evaluation Matrix

MetricTypical RangeWhy It Matters
Pole countProject-definedPole count determines resolution, pulse frequency, and sensor compatibility.
Concentricity and runoutDefined by rotor and sensor tolerance stackMechanical eccentricity can appear as magnetic signal variation.
Phase referenceDrawing-defined mark or assembly featureAssemblers need a reliable reference to align the magnetic pattern to the product.

RFQ Checklist

  1. Pole count, pole pattern, and phase/reference mark requirement
  2. Ring dimensions, tolerance, material, coating, and mounting method
  3. Sensor type, air gap, speed range, and signal target
  4. Operating temperature and mechanical load environment
  5. Sample quantity, annual forecast, and inspection documentation needs

Risk Controls

  • Wrong pole count or pitch: Freeze magnetic pattern drawings and sensor assumptions before tooling or sample release.
  • Signal ripple from mechanical tolerance: Review air gap, runout, ring mounting, and inspection method together.
  • Assembly reference ambiguity: Add phase marks, fixture references, or packaging orientation controls.

Validation Boundary Before Drawing Freeze

Field proof

Use gaussmeter mapping as a screening step, then confirm sensor output at the assembled air gap.

Environment proof

Review temperature, corrosion, vibration, adjacent metal, coating limits, and demagnetization margin.

Document proof

Request inspection records, C of C, RoHS/REACH-style files, or PPAP-ready evidence only when the project requires it.

Automotive, medical, aerospace, and other high-reliability programs should treat page data as sourcing guidance. Final approval depends on buyer-specific testing, documentation scope, and application validation.

Product and Application References

Matched product visuals selected from the current sensor magnet image library by filename and topic fit. Use them as RFQ discussion references, not as final drawing approval.

Custom multipole magnetic ring component
Custom multipole magnetic ring component
Magnetized ring for encoder and RPM sensing
Magnetized ring for encoder and RPM sensing

Buyer FAQ

Can you make custom multipole patterns?

Yes. Please provide the pole count, ring dimensions, sensor layout, and expected signal pattern for review.

Do you need a magnetic field map to quote?

A field map is useful when available, but an initial RFQ can start from geometry, pole count, air gap, and sensor target.

Related Resources

  • Encoder and angle sensing
  • Contact / RFQ

Inquiry Email

[email protected]

Email app

Include drawing, dimensions, material, coating, magnetization, quantity, and delivery location.

Instant Chat

+86 18857971991

Chat on WhatsApp

Direct channel for RFQ details and engineering clarification.