High-Quality Metal Insert Molding Parts

Our Metal Insert Molding Parts are widely applied in electronics, automotive systems, industrial equipment, and precision connector assemblies—ideal for components that require metal conductivity or structural strength, combined with plastic insulation, protection, and formability. These components integrate metal inserts (such as terminals, threaded inserts, shafts, studs, and contact pins) with engineering plastics in a single molding cycle. The process creates a permanently bonded structure with superior mechanical strength and electrical insulation. Metal inserts are typically made of brass or steel, often with grooves, knurling, or texture patterns to enhance resin grip, while the plastic shell (e.g., PBT, PA66, PC+ABS, LCP) encapsulates and stabilizes the metal to form a robust, precision-assembled part. During molding, the inserts are positioned and locked precisely inside a custom-designed mold. Molten resin flows around the inserts, fills all micro-features, and cools to f…