Custom Insert Molding
Engineering Industries (EI) provides custom insert molding solutions for precise assemblies that combine plastic and metal components. Projects move efficiently from concept to production through collaboration between engineering and manufacturing teams, ensuring each part meets design intent and functional requirements.
Precision Assembly Through Plastic Insert Molding
Plastic insert molding allows thermoplastic material to form around metal inserts, terminals, or fasteners. EI molds each insert directly into the part to create a secure, repeatable bond. The process strengthens the assembly, improves alignment, and eliminates secondary fastening steps that can loosen over time.
Advantages include:
- Stronger connections between metal and plastic
- Reduced assembly time and labor
- Consistent positioning of embedded components
- Improved product durability and stability
EI’s insert molding manufacturing operations are supported by automation, process monitoring, and a 40 to 250 ton press range. Equipment is configured for overmolding and multi-cavity runs, allowing efficient changeovers and stable processing across part families.
Electric and hydraulic machines manage precise control of temperature, flow, and pressure to prevent defects and maintain accuracy around metal inserts. Each project is reviewed for tooling design, gating strategy, and resin compatibility to ensure clean fills and strong adhesion.
EI supports a wide range of applications through plastic insert molding and custom injection molding, including:
- Agricultural insert molding solutions for rugged mechanical connections
- Insert molding electronics for electrical terminals and connectors
- Industrial metal insert molding for mechanical components and housings
Each insert is handled with precision and care, combining engineering foresight with controlled processing to deliver repeatable results across every production run.