In the field of precision manufacturing, micro-screws are like the "red blood cells" of industry. Despite their tiny size, they carry crucial missions such as spacecraft's flight, the precise operation of medical equipment, and the lightweighting of consumer electronics. Shanghai Yijun Precision, founded in 2013, is a hidden champion in this niche market. Thanks to a decade of dedicated technological development and digital innovation, the company has become one of the few global manufacturers capable of consistently supplying micro-
Precision Screws in the M0.5-M3 range. Its products achieve tolerances of ±0.002mm, making them a trusted choice for high-end industries such as aerospace, medical, and precision electronics.
The challenge of micro-screw manufacturing lies in achieving "smallness and precision"—when the screw diameter is reduced to M0.5 (approximately 0.5 mm), the difficulty of thread accuracy, material strength, and surface treatment increases exponentially. Yijun Precision Machinery has broken through industry bottlenecks by building a three-in-one "design-development-manufacturing" technology system:
Material Innovation: Yijun's independently developed high-strength alloy formula ensures screws are lightweight while maintaining toughness, meeting the weight reduction requirements of spacecraft.
Process Innovation: Integrating CNC turning centers with optical inspection equipment creates a fully automated digital production line, enabling unmanned operation from rough cut to finished product.
Precision Control: Leveraging ISO9001 certification, Yijun has established a dynamic quality traceability system, with each screw undergoing 360° inspection using an optical microscope.
In the medical field, Yijun's M0.8 screws are used to secure heart stents. In the consumer electronics industry, its M1.2 screws support the precision hinges of foldable phones. In aerospace engineering, its M2.5 high-temperature-resistant screws withstand the extreme conditions of space. The company's technical director revealed, "Among global micro-screw suppliers, fewer than five can consistently supply M0.5 specifications. Our products have been certified by the European Space Agency and are currently being used in multiple International Space Station component projects."
Yijun's intelligent transformation is quite forward-looking: within the production workshop, robotic arms and AGV logistics vehicles work in tandem, with real-time data streaming throughout every step. AI algorithms automatically adjust equipment parameters based on order requirements, reducing line changeover time to less than 10 minutes. This "flexible intelligent manufacturing" model enables it to handle both single-batch orders for consumer electronics in the millions and deliver small batches of highly customized aerospace-grade products.
The evolution of micro-screw precision reflects the transformation of Chinese manufacturing from scale advantages to technological barriers. Yijun Precision's example demonstrates that by deeply cultivating technology in niche markets and building a digital moat, even "small parts" as small as 0.5 mm can leverage the vast market share of the global supply chain. As the company's founder stated, "Our goal isn't to be the largest screw manufacturer, but to become an irreplaceable technological solution in micro-precision manufacturing."
As the wave of Industry 4.0 sweeps the world, Shanghai Yijun Precision is writing a new chapter in Made in China's history in the microscopic world with millimeter-level precision. This "industrial nail," embodying a belief in technology, may open the door to innovation for even more high-end industries.
