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繁體中文With decades of precision-driven expertise, has mastered the art of crafting complex, high-performance Plastic Injection Mold solutions. Through vertically integrated services, from concept design to mold fabrication and mass production, the company meets the stringent requirements of global industries seeking reliable, custom-built plastic components. By combining advanced tooling techniques, mold flow analysis, and exacting quality inspections, SUNG I delivers scalable, cost-effective solutions tailored for medical, electronics, automotive, and industrial applications. The company’s ability to accommodate insert molding, overmolding, and dual-color molding gives clients the competitive edge to innovate without compromise.Beyond technical capabilities, the organization excels in transforming initial sketches into functional end-use items that comply with diverse regulatory standards. The in-house engineering teams are proficient in translating complex material properties into durable forms, optimizing every stage from CAD refinement to prototyping. This enables the firm to offer unmatched consistency in shape accuracy and mechanical strength. Client collaboration is central to the workflow, fostering long-term relationships grounded in transparency and shared goals. By incorporating lean practices into all manufacturing stages, the production cycle remains responsive and agile.
Plastic Injection Mold
Injection Molding Design
Selecting the right mold steel type is essential for achieving optimal results in plastic injection molding. It influences not only product durability and precision, but also overall manufacturing cost and efficiency. Choosing the right steel at the mold development stage helps ensure a successful and scalable production process.
At Sung I Industrial, we offer complete technical consulting and custom manufacturing solutions—from design and steel selection to tooling and delivery—to support fully integrated vertical production. Whether you're working on large-scale OEM/ODM projects or high-performance transparent components, we can help you select the most suitable steel material for your needs.
More detailed note:
P20 – Ideal for High-Speed Production of Small to Medium Parts
P20 is best for producing small to middle size products, especially where high-speed production is required. It offers an excellent balance of hardness and machinability.
P20+Ni – Optimal for Large Mold Applications with Smooth Finish
When working with large mold applications such as bumpers, dashboards, and TV cabinets, P20+Ni is an excellent choice. It delivers a smooth and shiny surface, meeting the aesthetic demands of larger consumer products.
NAK80 – Premium Choice for Transparent Plastic Components
NAK80 is specially designed for transparent plastic components including camera lenses, tail light covers, and LED lenses. It offers high polish ability, resulting in high brightness and strength—perfect for parts requiring both clarity and durability.
Product Description:
Automated Mold Design / External Thread Plastic Injection Mold
External thread plastic injection molds are specifically designed for products with outer threads, such as bottle caps, container lids, and threaded sleeves. These molds require precise engineering to ensure that thread profiles remain intact during demolding and that product dimensions remain consistent.
With expertise in mold development and advanced plastic injection molding, various thread types and custom specifications can be supported. These molds are widely used in everyday consumer goods, medical components, and other industrial applications.
At Sung I Industrial, we offer full custom manufacturing and OEM/ODM services, supported by a vertically integrated production process. This allows us to improve manufacturing efficiency, maintain high quality, and provide cost-effective solutions for threaded plastic parts—making us your ideal partner in thread mold production.
Product Description:
Automated Mold Design / Auto Unscrewing Mold
An auto unscrewing mold is a specialized design where the threaded core rotates automatically to release the plastic part during demolding. This system is ideal for products with external threads and significantly improves production efficiency and stability, making it well-suited for automated plastic injection molding lines.
This technology is widely used in industries that require high-precision and high-speed production. Whether applied in mold development, OEM/ODM manufacturing, or flexible, custom manufacturing projects, auto unscrewing molds play a vital role in optimizing productivity. When integrated into a vertically integrated production process, it allows for streamlined operations, reduced labor, and consistent product quality—making it an essential tool in modern injection molding strategies.
Product Description:
Automated Mold Design / Hydraulic Core Pulling Injection Mold
Hydraulic core pulling injection molds are ideal for plastic parts with undercuts, grooves, or side holes that cannot be ejected by standard means. Using a hydraulic cylinder, the mold activates a core-pulling mechanism to ensure smooth and accurate demolding. This technology is widely used in plastic injection molding for automotive, electronics, and industrial products.
At Sung I Industrial, we offer advanced mold development and custom manufacturing solutions. Whether for OEM/ODM projects or high-precision parts, our molds support complex processes such as insert molding and overmolding, and are compatible with various engineering plastics. Through full vertical integration, we manage everything from design to delivery—ensuring faster lead times, stable quality, and cost control. Hydraulic core pulling molds are essential for manufacturers seeking efficiency, durability, and flexibility in modern injection molding production.
As a trusted exporter and product innovator, the company leverages eco-conscious initiatives by incorporating recycled materials into its injection systems while maintaining world-class performance standards. These efforts position as a sustainability leader in the Taiwan manufacturing ecosystem. By integrating assembly services and real-time quality control within its production process, the company minimizes lead time and boosts consistency across large-volume orders. This high-efficiency process enables seamless delivery to clients across continents, solidifying SUNG I’s role among the most dependable suppliers of engineered plastic parts worldwide.The adaptability of their operations ensures compatibility with fluctuating global demand while safeguarding quality under compressed deadlines. With automated monitoring tools and real-time data analytics, the production environment remains tightly controlled, reducing error rates and enhancing output precision. Their emphasis on continuous improvement ensures evolving market requirements are met without disruptions. Moreover, attention to ergonomic design and material recyclability enhances both product usability and life cycle value, contributing to better outcomes for partners across commercial sectors.