22-Pole Sintered Neodymium Ring Magnets

These advanced components offer unparalleled magnetic field intricacy and control.

You can customize them for high-precision rotary encoders and specialized sensing applications.

Our 22-pole inner magnetized ring magnets represent the cutting edge of multipole magnetic technology:

• High-Resolution Field Pattern: 22 alternating North and South poles around the inner circumference
• Ultra-Fine Spatial Resolution: Ideal for high-accuracy rotary position sensing
• Smooth Rotational Performance: Minimized cogging effect in specialized motor designs
• Optimized Inner Field Distribution: Maximized flux density where it matters most
• Unique Pole Count: 22-pole configuration for applications requiring prime number pole pairs

Inner Multipole Magnetization Expertise:

1. Proprietary fixture design for precise 22-pole inner circumference arrangement
2. Advanced radial pulse magnetization techniques ensuring uniform inner pole strength
3. High-precision controlled process for equidistant pole spacing on the inner diameter
4. Stringent quality control verifying exact 22-pole configuration and inner field consistency

1. Magnetic Grades

Available Grades:

• N35 to N52

Recommended for 22-pole Inner Configuration:

• N42 to N48 for optimal balance of strength and fine pole definition

Temperature Grades:

• Standard (80°C)
• H (120°C), SH (150°C), UH (180°C)
• EH (200°C), AH (220°C) and TH (250°C) for high-temperature

2. Precision Ring Dimensions

Inner Diameter (Magnetized Surface):

• Minimum: 20mm (to accommodate 22 poles)
• Maximum: 300mm
• Outer Diameter: Customizable based on encoder or sensor housing requirements

Thickness: Up to 30mm
Tolerance: As precise as ±0.01mm for critical sensing applications

3. Surface Treatments

Standard:

• Nickel-Copper-Nickel (Ni-Cu-Ni) triple layer plating

Specialized surface finishes:

• Zinc plating: Corrosion resistance without compromising inner pole definition
• Gold plating: Ultra-thin plating for conductivity in sensitive applications
• Silver plating: Enhanced thermal properties for high-speed rotation sensing
• PTFE coating: Minimal wear for long-lasting encoder performance
• Parylene coating: Ultra-thin, uniform coating for highest precision applications

4. Magnetization Directions

Radial Multipole on Inner Diameter:

• 22 alternating poles around the inner circumference (standard)

Custom Inner-Outer Hybrid:

• Specialized pole patterns for unique sensor designs

5. Encoder-Ready Procurement

– Low minimum order quantity for specialized encoder projects
– Scalable production from prototype to high-volume sensor manufacturing

6. Quality Assurance

– RoHS and REACH compliant for global sensor markets
– CE marked and EMC tested for European encoder integration
– 100% inner pole count and individual pole strength verification
– High-resolution magnetic field mapping of inner circumference

7. Packaging

– Custom-designed trays with inner pole protection
– Anti-static packaging for sensitive encoder components
– Clean room packaging option for highest-grade sensor applications

Tailored Applications

Our 22-Pole Inner Magnetized Neodymium Ring Magnets excel in:

• Ultra-high resolution rotary encoders
• Precision robotic joint position sensors
• Advanced motor commutation systems
• High-accuracy angle measurement devices
• Specialized scientific instruments requiring complex inner fields
• Next-generation haptic feedback mechanisms
• Miniature high-pole-count electric motors

The 22-Pole Inner Magnetization Advantage

1. Unmatched Inner Field Resolution: 22 poles offer superior angular measurement precision
2. Compact Sensor Integration: Ideal for space-constrained high-resolution encoder designs
3. Optimized Signal Generation: Enhanced sensor output due to concentrated inner field
4. Versatile Mounting: Suitable for shaft-mounted or bearing-integrated sensor systems
5. Thermal Stability: Inner magnetization less affected by external temperature fluctuations
6. Contamination Resistance: Protected inner poles for consistent long-term performance

Whether you’re developing next-generation encoders, creating ultra-precise robotics.

Or pioneering new magnetic sensing technologies.

Our team is ready to help you harness the power of inner multipole magnetization.

Engage with our specialized sensor magnet engineers today!