Chinese Voice-Coil Motor Companies Overcome “Bottleneck” Technologies; Motors for Ventilators Reach World-Class Level in Service Life
Micro-motors are one of the key indicators of a nation’s precision manufacturing capabilities. In the niche field of voice-coil motors, Chinese companies have made a significant leap from “following” to “keeping pace” and, in some cases, even “leading” the global industry. According to a report by CCTV Finance, leading domestic companies have extended the lifespan of voice coil motors used in critical-care ventilators to twice that of the international leading standard, while keeping friction below 10 millinewtons—far superior to the international advanced standard of 50 millinewtons. As a specialized domestic manufacturer of voice coil motors, SUPT MOTION continues to focus on high-reliability application fields such as healthcare and semiconductors, launching multiple customized products that have passed rigorous lifespan tests.
Keywords: Ventilator voice coil motors, medical device linear motors, domestic alternatives to VCMs, SUPT MOTION medical applications.
Domestic Substitution Achieved for Core Ventilator Components
Voice coil motors are one of the five core components of critical-care ventilators, and their operating cycles directly determine the ventilator’s service life. In the past, this market was long monopolized by European and American brands, with individual motors selling for as high as $150. Through independently developed sliding components with a special structure, domestic companies have successfully reduced motor friction, doubling the service life compared to similar international products while lowering the mass production price to around $70, significantly reducing procurement costs for medical device manufacturers.
From Healthcare to Robotics: The Broad Application Potential of Voice Coil Motors
In addition to medical devices, voice coil motors also hold broad application prospects in areas such as humanoid robot joint actuation, optical autofocus, and precision semiconductor processing. Leading domestic companies are now able to provide more than 30 models of micro-specialty motors suitable for humanoid robots. This marks the transformation of China’s voice coil motor industry from a mere component supplier to a provider of high-end electromechanical system solutions.
SUPT MOTION Solutions for the Medical Field
SUPT MOTION’s VCAR series of cylindrical voice coil motors offers a thrust range from 0.7 N to 1,000 N, with a stroke controlled within 50 mm, making them particularly well-suited for the stringent requirements of medical devices—namely, “compact size, high responsiveness, and long service life.” Among these, multiple models—including the VCAR0013-0072-00A and VCAR0022-0098-00A—have been successfully applied in scenarios such as ventilator valve braking, small precision displacement measuring instruments, and active vibration damping systems. Thanks to their low-friction design (customizable to the millinewton level) and fully enclosed, dust-proof structure, SUPT MOTION’s voice coil motors deliver outstanding performance in cleanroom environments and under continuous operation.
Rare Earth Resources Drive Industrial Upgrades
It is worth noting that the abundant rare earth resources in Baotou, Inner Mongolia, are injecting new momentum into China’s voice coil motor industry. Leveraging the local industrial foundation in rare-earth permanent magnet materials, companies such as Baotou Jiangxin Micro Motor have supplied micro voice coil motors to well-known consumer brands including Transsion, OPPO, VIVO, and Xiaomi. They are also actively expanding into the OIS (Optical Image Stabilization) motor market, with plans to achieve an annual production capacity of 60 million stabilization motors by 2025, capturing over 30% of the global market share.