What is Insert Molding?
Insert molding is an injection molding manufacturing process where a preformed part (often metal) is encapsulated by injected thermoplastic resin to create a single, unified component.
This process improves strength, durability, and part functionality while reducing production and assembly time.
Common insert types include:
- Threaded inserts
- Metal pins or rods
- Medical needles
- Connectors
- Electrical contacts
- Custom metal components
Why Choose Aberdeen for Insert Molding?
ISO 9001 CertifiedTight tolerance molding with high-precision machinery
Over 40 years of experience
Engineering support from concept to production
Whether you're prototyping a new part or scaling up production, our insert molding capabilities ensure superior structural integrity and reduced labor costs.
Applications of Insert Molding
Our insert molding services are ideal for:
- Medical devices (e.g., catheters, cannulas, tubing)
- Aerospace parts requiring tight tolerances, strength, and precision
- Electrical components with embedded metal contacts
- Consumer goods like tools, grips, or wearables
We specialize in producing complex, reliable parts where failure is not an option.
Insert Molding vs. Overmolding
| Feature | Insert Molding | Overmolding |
|---|---|---|
| Process | A metal or plastic insert is placed into a mold before plastic is injected. | A second material is molded over a base part. |
| Applications | Structural parts needing embedded components | Ergonomic grips, seals, or multi-material parts |
| Examples | Threaded housings, electrical connectors | Tool handles, soft-touch grips |
Get an in-depth breakdown of insert molding vs. overmolding in our complete guide.
Our Insert Molding Process
- Design & Engineering Review – We ensure your part is mold-ready
- Insert Design – We help design inserts that can withstand the process
- Mold Building (if necessary) – We’ll custom build the mold to your specifications
- Precision Molding – Using state-of-the-art machines and tight quality control
- Testing & Validation – We meet or exceed industry tolerances
Industries We Serve
- Medical Device Manufacturing
- Aerospace & Defense
- Cable Overmolding
- Consumer Electronics
If you're looking for a trusted insert molding company, Aberdeen Technologies delivers results for mission-critical applications.