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Zhongde Overmolding and Insert Molding Service
Zhongde, a reputable on-demand manufacturer in China, provides insert molding & over-molding services and produces unique multi-material parts. Both over-molding and insert molding injection processes involve putting two types of materials together to make one part, and the inserts can be threaded metal inserts. This ensures a seamless combination of multiple plastic parts to give a uniform and durable product.
Over-molding is obviously a very mature injection molding process in the market. Our professional staff will provide you advice according to our nearly 40+ years of injection molding experience to make your products competitive in the market.
Injection Molding From Prototyping to Production
Tooling Service of Overmolding and Insert Molding
Zhongde is an on-demand manufacturer from mold designing and rapid prototyping to mass production. We offer custom mold-making, prototype tooling, and production tooling services. Our experienced team utilizes advanced CAD/CAM software and state-of-the-art equipment to injection mold design, mold making, and maintain molds with exceptional precision and durability for high-quality custom molded parts. Check our injection molding capabilities and tooling services.
| Item | Details |
|---|---|
| Injection Molding Service Options | Prototyping & on-demand manufacturing |
| Insert Molding | Inserts are placed into the mold and molding occurs around them. This allows for inserts such as helicoids to be molded in your design. |
| Overmolding | Premade parts are placed into the mold to mold over them. This allows for multi-material injection molding. |
| Mold Material | Steel P20, H13, S136, 2316, 2344, 083, 718H, SKD618, etc. |
| Production Tooling | Traditional molds, used for mass production. |
| Mold Type | Family molds, Single cavity molds, multi-cavity molds, two plate molds and three plate molds. |
| Mold Storage | Stored for 3 years in inactivity |
| Guaranteed Mold Life | Unlimited |
| Mold Remachining | We can re-machine the molds if there are any changes required, basis on mold structure. |
Available Size of Overmolding and Insert Molding Service
The below table shows the regular size of the custom insert molding parts and overmolded parts. If you need a larger size or other unique requirements about the size, Zhongde as a professional insert and overmolding china manufacturer, can also help you achieve it at a competitive price.
| Size | Metric | Inch |
|---|---|---|
| Length | 2500 | 98.4 |
| Width | 2000 | 78.7 |
| Height | 1500 | 59 |
Materials of Insert and Overmolding Services
At Zhongde, we not only offer a wide range of molding materials, but also provide additives to meet special requirements. Our professional material expert can customize the most cost-effective materials to meet your specific needs. There is our injection molding materials and additives list for your reference.
The General materials listed below are for custom insert and overmolded plastic injection.
- ABS
- HDPE
- PA6/6
- PTFE
- PP
- PC
- PE
- PS
- PA6
- POM
- LDPE
- PVC
- PU
The general rubber overmolding and insert molding materials are listed below:
- EPDM
- PVC
- TPU
- Silicone
- TPE
- TPV
The preformed and inserts metal materials are listed as below:
- Aluminum
- Carbon Steel
- Brass
- Stainless Steel
- Copper
Different Types of Overmolding Services Processes
What is a Substrate?
Substrate Material: machined metal component, molded plastic piece, or even an existing item such as threaded inserts, screws, or electrical connectors. Essentially, it is the foundational part that becomes integrated into a single, seamless piece composed of different materials, chemically bonded and often mechanically interlocked.
What is Overmolding Material?
Overmolding materials start in pellet form. These pellets are combined with additives like colorants, foaming agents, and other fillers, then heated to their melting point and injected as a liquid into the mold. However, not all materials are suitable for overmolding. When overmolding metal with plastic, almost any plastic can be used. But if overmolding involves plastic over another plastic (or rubber/TPE), compatibility can become an issue. Zhongde provide compatibility charts to guide these applications.
Surface Finishing of Overmolding & Insert Molding
Injection olding surface finish is critical to a successful part design and it is used for aesthetic and functional reasons in injection molded parts for engineering products. The surface finish improves the look and the feel of a product as the perceived value and quality of the product increase with a suitable surface finish.
Glossy
Semi-glossy
Matte
Textured
Overmolding vs Insert Molding Services
Overmolding process and insert moulding service process are two specialized injection molding techniques that used to combine multiple materials or components into a single molded part. Here’s a comparison and explanation of the two processes.
- Molding Cost: Both overmolding and insert molding can accelerate production and reduce assembly costs which generate greater profits for high-volume orders. However, overmolding process may require additional material and labor as it involves two steps, making it potentially more expensive than insert molding process.
- Molding Process: Overmolding is a two-step process that involves injecting two-shots of resins to form the substrate and the overmolding. Insert molding is a one-shot injection molding process, but the metal insert needs to create in advance.
- Material Compatibility: The overmolding process often involves using different materials with compatible bonding properties. The insert molding process can accommodate a wide range of inserts, including metal, plastic, or electronic components.
Both over molded process and insert moulding process provide unique benefits depending on the application requirements, offering improved functionality, reduced assembly processes, enhanced aesthetics, and cost savings. The choice between the two techniques depends on the desired outcome, design considerations, and specific project needs.
All You Need to Know About Overmolding
Related Products of Overmolding and Insert Molding
Why Choose Zhongde for Your On-Demand Manufacturer?
Cost Effective
Consistency and High Quality
Proven Success
Complete Range of Service
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Related Service of Zhongde On-demand Manufacturing
FAQs of Insert Molding & Overmolding
Are there any limitations or considerations when using overmolding or insert molding?
What industries commonly utilize overmolding and insert molding?
Overmolding and insert molding find applications in industries such as automotive, electronics, medical, consumer goods, and more, where product durability and functionality are crucial.
How can I determine if overmolding or insert molding is suitable for my specific product or project?
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