Bus Electronic Handbrake Motor Magnet
Built for the intense operational demands of buses, where safety and longevity are paramount, our bus electronic handbrake motor magnet is an industrial-grade component engineered for maximum reliability. We use microcrystalline structure ferrite material processed via Hot Isostatic Pressing (HIP), achieving a high product density of 5.2 g/cm³ to provide the bus electronic handbrake motor magnet with enhanced magnetic output and superior mechanical strength for heavy-duty applications.
Product Introduction
The bus electronic handbrake motor magnet adopts a ferrite material with a microcrystalline structure, manufactured using Hot Isostatic Pressing (HIP). This process results in a material density of approximately 5.2 g/cm³, improving both magnetic consistency and mechanical strength, which are critical for high-load commercial vehicle applications.
To meet the parking safety requirements of fully loaded buses and coaches, the magnetic system delivers a static holding torque of up to 35 N·m. This level of holding force ensures stable parking performance across slopes, uneven road surfaces, and frequent stop-and-go operating conditions typical of urban and intercity bus service.
Thermal performance is addressed through an optimized heat dissipation structure. Copper-based composite elements are introduced in the magnetic and motor assembly to improve thermal conductivity, allowing continuous operation at temperatures up to 165°C without magnetic degradation. This is particularly important in high-frequency EPB usage scenarios where heat accumulation is unavoidable.
The electrical design supports a wide operating voltage range from 18V to 36V, matching standard bus electrical systems and tolerating voltage fluctuations caused by frequent engine start-stop cycles and auxiliary power loads. In addition, changes in magnetic characteristics can be monitored to support fault diagnosis and condition assessment, enabling early detection of abnormal operating states and supporting preventive maintenance strategies for fleet operators.
Reliability is verified through accelerated life testing exceeding 8 million actuation cycles. Performance stability throughout testing supports a service life target of more than 12 years or over 3 million EPB operations. This validation aligns with real-world public transportation usage, where a single vehicle may experience more than 200 electronic parking brake operations per day, and component reliability directly impacts operational safety and fleet availability.
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