Multi-material Co-injection Mold - Fanstar Achieves Efficient Integrated Molding of Soft And Hard Materials Through Precise Timing Control.

In high-end stationery, intelligent electromechanical equipment, and aviation human-machine interaction components, a single material is no longer sufficient to meet both structural strength and tactile experience requirements. The multi-material co-injection molding mold, by integrating hard structural frames and soft rubberized areas in the same product, has become a core process for enhancing functional integration and user experience. As a manufacturer specializing in export-level precision molds, Fanstar has successfully delivered multiple sets of multi-material co-injection molding molds for two-color, three-color, and encapsulation molding, which are widely used in the handles of mechanical pencils, industrial control panel seals, and aviation cabin operation components.

The technical challenges of multi-material co-injection molds lie in material compatibility, precise injection timing, and reliable interface bonding. Fanstar scientifically designs the gate positions and switching windows through Moldflow multi-material flow and bonding simulation, ensuring that there is no overflow, no delamination, and that the bonding strength meets the standards when TPE/TPU is combined with PC, ABS or PP; the molds adopt high-precision servo rotating discs (with positioning accuracy of ±0.01mm), sliding mold cores or layered structures to ensure synchronous multi-station operations; the key sealing surfaces are mirror-polished (Ra ≤ 0.2μm) and treated to prevent cross-contamination, eliminating material intermixing. In pen molds, a high-gloss hard rubber and anti-slip soft rubber are integrated into one piece without the need for secondary assembly; in mechanical and electrical enclosure molds, the shell and IP67-level sealing rings are simultaneously injected; in aviation molds, the co-injection requirements for FAR 25.853 flame-retardant and low-smoke materials are met.

All multi-material injection molds have undergone full-automation prototype testing and verification, supporting 24-hour continuous production. The yield rate is stable at over 95%, significantly reducing assembly costs and supply chain complexity.

Choosing Fanstar means choosing a partner who truly masters the logic of multi-material collaborative engineering and provides multi-material co-injection mold technology. With systematic design and international quality standards, we enable "one mold with multiple materials" to truly achieve "functional integration, experience upgrade, and efficient mass production". Welcome to contact us and customize your highly integrated injection molding solution!