Overmolding Services
Experience excellence with our high-quality custom overmolding services, tailored for prototypes and on-demand production parts at MY Prototyping. Obtain online quotes with short cycle times and competitive pricing, ensuring a seamless fusion of materials for your project's success.
No minimum order quantities
T1 time is as fast as 20days
ISO 9001:2015 certified
24Hrs
Instant Quotes
1 pc
MOQ
24/7
Engineer Service
99.5%
On time Delivery
14+
Years in Business
Custom Overmolding Services
The art of overmolding involves molding one plastic material over another, ensuring a seamless combination of multiple plastic parts for a uniform and durable end product. Leveraging insert molding and multi-shot molding processes, MY Prototyping's plastic injection overmolding brings forth a commitment to industrial standards.
Gallery of Injection Molding Parts
Immerse yourself in MY Prototyping’s extensive gallery, showcasing completed injection molded parts. Gain confidence that we can bring your injection molding project to life with precision according to your strict specifications.
From Prototyping to Production
Swift and Cost-Efficient Rapid Injection Molding
Get 1K-100K units quickly at a low cost using our rapid injection molding. With aluminum or steel molds, we ensure a fast turnaround, addressing production challenges and reducing time-to-market. Speed up your success with us.
Precision Plastic Injection Molding
Elevate your output with low volume injection molding—produce 100K-1M units using resilient steel molds for high-quality, consistent results. Optimize your production with us.
MY Prototyping Overmolding Capabilities
| Standards | Description |
|---|---|
| Maximum Part Size | 1200×1000×500 mm; 47.2×39.4×19.7 in. |
| Minimum Part Size | 1×1×1 mm; 0.039×0.039×0.039 in. |
| Part to Part Repeatability | +/- 0.1 mm; +/- 0.0039 in. |
| Mold Cavity Tolerances | +/- 0.05 mm; +/- 0.002 in. |
| Available Mold Types | Steel and aluminum tooling. Production grade we provide: Under 1000 cycles, under 5000 cycles, under 30,000 cycles, and over 100,000 cycles |
| Machines Available | Single cavity, multi-cavity, and family molds, 50 to 500 press tonnage |
Materials for Overmolding
Tooling Materials
Before injection molding process starts low or high-volume production, a high tolerance CNC machined tooling is needed. Most commonly used materials include:
Tool Steel: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738 Stainless Steel: 420, NAK80, S136, 316L, 316, 301, 303, 304
Aluminum: 6061, 5052, 7075
Plastic Materials
Plastic injection molding service comes with a wide range of materials with different properties, including impact strength, rigidity, thermal resistance, chemical resistance, etc.
ABS HDPE LDPE PP
PPA PS POM PC
PU Teflon (PTFE) Nylon
PC PMMA PA PEEK
PET
Our Overmolding Processes
See how we process your orders, from quotation to tooling, as our machines and efficient team ensure you receive your molds and parts within the scheduled lead time.
Design Submission
Kick off the process by uploading your 3D model files online, or you could email us directly. Seamlessly supports various file formats such as [.STP], [.STEP], or [.STL], ensuring compatibility and ease of use.
Instant Quote & DFM analysis
Upon submitting your project, an immediate quote will be provided. Our sophisticated algorithms conduct a thorough analysis of your design, pinpointing potential manufacturability issues and fine-tuning for optimal printing efficiency.
Order confirm & Deposit
Client confirm the price and order for us. Some deposit we use for formal DFM report, mold design and purchase the plastic injection mold steel material. We have very strictly process for injection mold project. We care about.
Project Kick off in MY Prototyping
Once we receive the client’s order confirmation, we organize interior team to study client’s part design, and emphasize the client’s request , remark the plastic part and plastic injection mold important points, the risk we need avoid and the back up solution. To make sure the plastic part quality.
DFM & Mold design confirmation
Before project kick off, we confirm the team member responsible for different position. After project kick off, the designer need supply the DFM report. We discuss with client and after the confirmation, we could submit the mold design, only the mold design confirmed by clients, we could start the next step.
Steel cut & mold manufacture
Client confirm the mold design, we start to cut the steel. It takes 2-3 working days to purchase, and we start the plastic injection mold manufacturing then, the same time, MY prototyping send the mold time schedule to clients. It usually takes 20-45days to get the T1 samples, depends on the mold size and mold structure.
T1 sample and mold maintenance
Clients could clear about we need to do at each step from the mold time schedule. After first mold try out, we would send T1 samples to client for confirmation, and MY prototyping supply the mold maintain solution. After 2-3 times maintenance, we’ll get the final good assembly plastic parts, during this step, we help clients deal with the surface finishing.
Final sample confirmation
We ship the final samples to clients, clients need confirm the final samples including the surface treatment to MY prototyping. If client have the special request of the packaging, need tell us and confirm also. We start the plastic part production according to client’s quantity.
Part production &QC & delivery
At MY prototyping, we package and QC the part for first time, during plastic part production.Once products manufacturing finish, we ship the parts to warehouse, we arrange the QC team for second time checking. We’ll arrange the the part delivery according to our delivery term. And we could freely supply client prepare everything if client has their own forwarder to ship.
Why Choose Us for Overmolding
Instant quote within 24Hrs
Experience the convenience of receiving an instant quote within 24Hrs. Our efficient and streamlined process ensures a swift response, allowing you to quickly proceed with your project without delays. At MY prototyping, we prioritize efficiency and responsiveness to meet your needs promptly.
Consistent High Quality
Owing ISO certified factories, conducting in-process inspections and dimensional verification after production, guarantee the custom molded parts consistency regardless of the complex shape with high precision.
Fast and Reliable Delivery
Benefit from our robust manufacturing capacity at MY Prototyping, ensuring swift turnaround for Injection mold parts. Our diverse shipping options further guarantee on-time delivery, eliminating typical hassles in the process.
Professional Engineering Support
Wherever you are, access our 24/7 engineering support year-round. Our seasoned engineers are ready to offer the most suitable solutions for your part design, material selection, surface finishing, and lead time considerations.
Explore SPI Finishes for Overmolding
Dive into our range of SPI finishes for plastic injection molds. Specify VDI textures by detailing your requirements when submitting a quote on our platform.
| SPI Finish Standards | Surface RA Roughness | Finishing Method | Textured | Steels Recommended |
|---|---|---|---|---|
| SPI A1 | 0.012 to 0.025 | 6000 Grit Diamond | Super High Glossy finish | S136 (54HRC) 8407(52HRC) |
| SPI A2 | 0.012 to 0.025 | 3000 Grit Diamond | too High Glossy finish | S136 (54HRC) 8407(52HRC) |
| SPI A3 | 0.05 to 0.10 | 1200 Grit Diamond | Normal Glossy finish | S136 (300HB) or 718H |
| SPI B1 | 0.05 to 0.10 | 600 Grit Paper | Fine Semi-glossy finish | 718H |
| SPI C1 | 0.35 to 0.40 | 600 Grit Stone | meticulou smatte finish | 718H |
| SPI D1 | 0.80 to 1.00 | Dry Blast Glass Bead | Satin Textured finish | 718H |
Understanding SPI Mold Classifications
We follow the five standard categories of SPI mold classifications, ranging from Class 101 to 105. This ensures clear alignment of expectations for both customers and suppliers.
| Mold Class | Production Level | Cycles | Applications | Tolerance | Cost | Lead Time |
|---|---|---|---|---|---|---|
| Class 105 | Prototype Testing | Under 500 cycles | Prototype testing | ± 0.02mm | Fall within low to moderate price ranges | 7-10 days |
| Class 104 | Low-volume Production | Under 100.000 cycles | Good for limited-production parts with non-abrasive materials | ± 0.02mm | Inexpensive to produce a very limited number of product prototypes | 10-15 days |
| Class 103 | Medium | Less than 500K cycles | For low to medium-production parts | ± 0.02mm | Fall within common price ranges | 10-15 days |
| Class 102 | Medium to high | Less than 1M | Good for parts with abrasive materials and/or tight tolerances | ± 0.02mm | Fairly high price and made with materials of high quality | 10-15 days |
| Class 101 | Extremely high | Over 1M cycles | Extremely high production and fast cycle times | ± 0.02mm | Highest price and made with only the highest quality materials | 10-18 days |
Overmolding for Various Applications
Start a new project production today!
FAQs about Injection Molding Service
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