Micro injection molding is an injection molding process specifically designed for the manufacture of very small plastic parts. Compared to conventional injection molding, micro-injection molding handles a much smaller amount of material during the injection molding process, and part sizes are typically in the micron range. The technology relies on high-precision molds and state-of-the-art injection equipment to ensure that temperature, pressure and injection speed can be accurately controlled in a very small space to produce precision micro parts.
（Image from web）
Micro medical devices: such as syringe needles, micro valves and catheters, etc. These parts usually require extremely high precision and reliability. Micro injection molding technology can meet these requirements and maintain the consistency and functionality of the parts during the production process.
Implants and sensors: For the manufacture of miniature implants, such as drug delivery systems or biosensors, micro injection molding is able to produce components that are small in size and precise in function while ensuring biocompatibility.
Diagnostic devices: For example, miniature reagent cards and key components for analytical instruments, micro injection molding enables complex fluid control and chemical reaction designs to improve diagnostic accuracy and efficiency.
(Image from web）
Miniature electronic components: such as miniature connectors, switches and packages, which play an important role in smartphones, wearable devices and other high-tech products. Micro injection molding can produce these small and highly accurate electronic components to support the miniaturization and high performance needs of devices.
MEMS (microelectromechanical systems): Used in the manufacture of miniature sensors, actuators, and micro-mechanical components, micro-injection molding technology can be combined with other micromachining technologies to enhance the functionality and reliability of MEMS devices.
Optical components: such as miniature lenses and optical filters, micro-injection molding can accurately manufacture these high-precision optical components to meet the requirements of high resolution and high optical performance.
（Image from web）
Precision and consistency: Micro injection molding technology can achieve high precision manufacturing on a very small scale, ensuring consistency and functionality of parts in the micron size range. This is critical to the performance of medical and electronic products.
Miniaturization and Integration: With the trend toward miniaturization of products, micro-injection molding technology makes it possible to integrate more functions into a limited space. It enables the manufacture of smaller, more complex components that meet the stringent size and weight requirements of modern electronics and medical devices.
Production efficiency and cost: Although micro injection molding technology has a high initial investment in molds and equipment, it can significantly reduce the cost per part in mass production. At the same time, it reduces the number of subsequent processing and assembly steps, improving productivity.
Design Freedom: Micro-injection molding offers greater design flexibility, enabling engineers to develop more complex geometries and functional integrations that may be difficult to achieve with traditional manufacturing techniques.
Micro injection molding technology is driving innovation in the medical and electronics fields through its high precision and miniaturization benefits. It not only meets the demand for miniature, high-performance components, but also supports the trend toward product miniaturization, enhancing design freedom and production efficiency. As technology continues to advance, micro-injection molding will continue to play an important role in more fields, leading to more precise and efficient manufacturing solutions.
