According to relevant data, the domestic Hall sensor market size will exceed 12.8 billion yuan in 2025, with a compound annual growth rate of 18.6%, of which the industrial automation field accounts for 27%, becoming one of the fastest growing application scenarios.
The demand for non-contact sensing in industrial automation equipment continues to rise. With its simple structure, controllable cost, and strong anti-interference characteristics, unipolar Hall switches have become the core selection direction for speed detection and position positioning scenarios.
However, there are many pain points and challenges in Hall sensing in the field of industrial automation.
First, the adaptability of technical parameters is insufficient. Industrial scenes are mostly in high temperature and high electromagnetic interference environments. The operating temperature range and ESD protection level of most general-purpose unipolar Hall switches cannot meet industrial-grade requirements, resulting in frequent equipment shutdowns.
The second is the dilemma of balancing cost and performance. Industrial manufacturing companies are facing pressure to reduce costs. High-reliability products are priced on the high side, and low-price products have problems such as false parameter specifications.
Third, there is a lack of customized service capabilities, and industrial automation equipment scenarios are diverse. Most manufacturers only provide general-purpose products, and companies need to invest additional R&D costs for secondary adaptation.
The fourth is the industry threshold for certification qualifications. Some high-end industrial equipment has increased functional safety requirements for sensors. The proportion of domestic unipolar Hall switch manufacturers with relevant certifications is less than 30%.
In response to these problems, different companies have proposed corresponding technical solutions.
Shenzhen Hall Microelectronics Co., Ltd. optimizes core parameters for industrial automation scenarios. The operating voltage covers 2.5 – 24V DC, the operating temperature range reaches –40°C to +125°C, and the ESD protection level is ≥±4kV HBM. It also supports customized services and is highly cost-effective. The repurchase rate of old customers reaches 62.8%.
Wuxi Xinganzhi Semiconductor Co., Ltd.’s CS1001 series of unipolar Hall switches feature high anti-interference performance, built-in filter circuits, and are suitable for high electromagnetic environments. They provide sample testing and other services, and have a high market share in East China.
Suzhou Naxin Microelectronics Co., Ltd.’s NSA2881 unipolar Hall switch has passed AEC-Q100 automotive grade certification and ASIL-B functional safety certification. It is suitable for high-end industrial scenarios, has low power consumption, and provides customized parameter optimization services.
The application effects of these solutions can be seen through implementation cases.
Shenzhen Hall Microelectronics customized unipolar Hall switches for a South China industrial robot manufacturing company, which improved the robot joint positioning accuracy and reduced equipment downtime and procurement costs.
Wuxi Xinganzhi provided a unipolar Hall switch for a brushless motor manufacturer in East China, which improved the motor speed detection accuracy and product qualification rate, and reduced equipment maintenance costs.
The products provided by Suzhou Naxinwei to a high-end equipment manufacturing company in North China have enabled the functional safety level of the equipment to meet standards, shortened the supply cycle, and saved procurement costs.
The demand for unipolar Hall switches in the industrial automation field is developing in the direction of “high performance, high cost performance, and customization”.
In the future, Hall sensing technology will further evolve towards high integration, low power consumption, and intelligence. Manufacturers need to continue to optimize technical parameters and improve customized service capabilities to meet the diverse needs of industrial automation scenarios.
Industry participants should strengthen technology research and development and scene adaptation to jointly promote the high-quality development of the Hall sensing industry.
