Medical and healthcare applications dominated thermoplastics micro molding market and accounted for 35% of the total market in 2012. The rapid development of micro fluidics technology mainly in North America and Europe is expected to drive the market for micro molding in medical and healthcare over the forecast period. Micro molding is used for manufacturing micro connectors in telecom fiber optics. Telecom fiber optics application is expected to exceed US$95 mln by 2019. Micro molding is used for manufacturing micro switches, connectors and airbag sensors in the automotive industry. It is expected to grow at an estimated CAGR of nearly 14% from 2013 to 2019. Global thermoplastic micro molding demand from drive systems and control is expected to reach over US$ 89 mln by 2019, as per Research and Markets.
Micro injection molding, as the name suggests, is a molding process which requires a specific molding machine with high injection pressure and speed, precise shot control, and ultra fine resolution for molding small sized tools and parts. This technique is used for the development of small or micro products that require precise specifications. Micro injection molding is usually done for the parts that are designed with weight less than a milligram and size less than 1mm. Use of this technique is not limited to only small parts but may be used for large products which require micro sized features such as thickness, diameter hole, etc. Silicone is the major raw material used for micro molding, owing to its physical and chemical properties. However, silicone is costly and impacts the profitability of molders. In order to reduce manufacturing cost, polymers came into existence in the 90s. Polymer based micro molded products find applications in almost all of the application areas where silicones are being used. Polymers are further classified as thermosets, thermoplastics and elastomers out of which thermoplastics are majorly used for various applications in end-use industries. In the medical industry, micro injection molding is conducted to manufacture parts such as sensors, implants, tubes, catheter tips, micro optics and others. Molded products are slowly replacing machined components that have been used traditionally in the industry. The growing trend of small devices coupled with increasing number of minimally invasive surgeries per day has been boosting the demand for micro sized parts from medical device man ufacturers. The key advantage of micro injection molding over micromachining is cost savings. Micro injection molding takes a fraction of time to mold the components and utilizes low cost raw materials compared to machining and results in high cost savings.
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