Injection Molded NdFeB Multi-Pole Magnets for Automotive Sensors

Product Overview:
MetalZenith's multi-pole sensor magnets are engineered to provide reliable, high-precision magnetic fields for automotive sensor applications. These magnets deliver consistent performance in critical vehicle systems, ensuring accurate data collection for safety, efficiency, and performance monitoring. Our advanced manufacturing techniques allow for complex pole patterns with minimal transition zones, resulting in clear, noise-free sensor signals. Each magnet is individually tested for magnetic performance, ensuring your sensor systems receive consistently high-quality components.

Key Features:

• Precise multi-pole configuration with minimal pole transition zones (<0.2mm) for clean signal generation
• Exceptional magnetic uniformity across all poles (±3% variation maximum) for consistent sensor readings
• Customizable pole counts and configurations tailored to specific sensor algorithms and requirements
• High resistance to demagnetization in automotive environments, including strong external fields
• Industry-leading temperature coefficient specifications (<0.1%/°C) for stable performance across temperature ranges
• 100% verified pole distribution using advanced Magnetic Field Scanning technology
• Customizable magnetization patterns including axial, diametrical, and specialized distributions
• Enhanced signal-to-noise ratio compared to conventional magnets, improving sensor accuracy
• Special formulations available for extreme temperature applications (-40°C to +200°C)
• Compatibility with Hall effect, GMR, AMR, and TMR sensor technologies

Applications:

• Crankshaft and camshaft position sensors for precise engine timing
• Wheel speed sensors for ABS and traction control systems
• Throttle position sensors for electronic throttle control
• Steering angle sensors for electronic stability control
• Transmission speed and position sensors for automatic transmissions
• HVAC control systems and blend door actuators
• Pedal position sensors for drive-by-wire systems
• Electronic parking brake mechanisms
• Start-stop systems requiring precise position detection
• Adaptive suspension height and position sensing

Technical Specifications:

• Pole Configurations: 2-32 poles with custom spacing and width options
• Pole Pair Accuracy: ±0.5° angular positioning for critical timing applications
• Dimensional Range: 5mm-50mm diameter, custom shapes available including ovals and rectangular designs
• Thickness Range: 1.5mm-8mm with tolerance of ±0.03mm
• Temperature Stability: -40°C to +180°C with special high-temperature formulations
• Magnetic Uniformity: <±3% variation between poles, measured at 1mm standoff distance
• Long-term Flux Stability: <1% loss over 10 years at maximum rated temperature
• Coating Options: High-temperature epoxy (100μm max), Parylene (25μm max), Ni-Cu-Ni (15-25μm)
• Magnetization Quality: 100% pole pattern verification via advanced field mapping
• Signal Harmonic Distortion: <2% for sine-encoded magnetic patterns

Signal Quality Advantages:
MetalZenith's sensor magnets produce exceptionally clean signals with minimal harmonic distortion. Our specialized manufacturing process creates sharp pole transitions while maintaining precise pole spacing, resulting in:

• Reduced signal jitter for more accurate speed detection
• Enhanced position resolution for precise control applications
• Improved low-speed performance in ABS and traction control systems
• Minimal temperature-induced signal drift for consistent operation
• Excellent signal-to-noise ratio even in electromagnetically noisy environments

Why Choose Our Sensor Magnets:
Our automotive sensor magnets undergo rigorous testing to ensure they meet the demanding requirements of modern vehicle systems. Each magnet is individually tested for pole accuracy, field strength, and dimensional precision, guaranteeing consistent performance throughout your production cycle. MetalZenith's sensor magnets are designed to exceed OEM specifications, providing enhanced durability and signal quality that translates to improved vehicle performance and reduced warranty claims. Our application engineering team can develop custom pole patterns optimized for your specific sensor design, improving system performance while potentially reducing system cost through magnetic circuit optimization.