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Injection Molded Rubber Services
Injection Molding From Prototyping to Production
Rubber Injection Molds and Tooling Services
As rubber injection molding companies, Zhongde makes all the injection mold rubber in-house, from mold design to mold production and mold maintenance. We not only increased the accuracy of custom injection molded rubber parts, and met the customized requirements of complex-shaped parts, but also improved production efficiency.
| Item | Details |
|---|---|
| Injection Mold Service | Prototype tooling & production tooling |
| Injection Mold Material | Steel P20, H13, S136, 2316, 2344, 083, 718H, SKD618, etc. |
| Injection Mold Type | Family molds, Single cavity molds, multi-cavity molds, two plate molds and three plate molds. |
| Mold Storage | Stored for 5 years in inactivity |
| Mold Life | 3 million to 5 million shots for production tooling |
| Mold Guarantee | Free mold if the last one worn out |
| Mold Remachining | We can re-machine the molds if there are any changes required, basis on mold structure. |
Injection Molded Rubber Size Chart
The below table shows the regular size of the china rubber parts we make. If you need a larger size rubber mold injection or have unique requirements, contact us for help.
| Size | Metric | Inch |
|---|---|---|
| Length | 2500 | 98.4 |
| Width | 2000 | 78.7 |
| Height | 1500 | 59 |
Injection Rubber Molding Materials
At Zhongde, we not only offer a wide range of injection molding rubber materials, but also provide additives to meet special requirements. Our professional material expert can adjust the most cost-effective materials to meet your specific needs. There is our common injection rubber molding materials and additives list for your reference.
The general materials are listed below for custom rubber injection molding.
- Silicone
- EPDM
- NBR
- CR
- FKM
- TPU
- TPE
- TPV
If the standard materials can’t meet your custom injection molding parts requirements, the additives and fibers can improve the material properties.
- UV absorbers
- Flame retardants
- Colorants
- Plasticizers
- Vulcanizing ageent
- Tackifiers
1. Filling stage
The filling is the first step in the entire rubber injection cycle. The time is calculated from the beginning of injection when the mold is closed until the mold cavity is filled to about 95%.
2. Pressure-holding stage
The role of the holding pressure stage is to apply continuous pressure to compact the melt and increase the density of the rubber, thus compensating for the shrinkage behavior of the rubber.
3. Cooling stage
In rubber injection mold, the design of the cooling system is very important. A well-designed cooling system can greatly shorten the molding time, improve injection molding productivity and reduce costs.
4. Demoulding stage
Demoulding is the last step in an injection molding cycle. There are two main ways of release: ejector rod release and stripper plate release.
Rubber Injection Molding Surface Finishing
Rubber molding surface finishing will improve the injection rubber molded parts' quality. Zhongde offers a wide range of surface treatment options. These efficient surface finishes improve the part's functions and aesthetic appeal.
Glossy
Semi-glossy
Matte
Textured
Have Any Injection Rubber Molding Needs? Speak with Zhongde Expert Today!
Related Injection Rubber Molding Resources
Injection Molded Rubber Products Display
Our rubber injection molding services are pefect for addressing the various deamands for different industries, including automotive injection molded parts, marine custom molded parts, consumer electronics custom rubber parts, home appliances molded parts, etc. Following are some of our previous injection molding rubber parts.
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 Rubber Injection Molding Service
Where is the tooling when my injection mold is done?
As a one-stop rubber and plastic injection molding manufacturer, we will make the tooling by ourselves. As long as you continue to run parts in our facility, we will keep the molds for you and make any necessary repairs or refurbishments at our cost for the life of your mold.
Can you assist with the design and engineering of the rubber parts?
Yes, our team can provide design assistance and engineering support to ensure your rubber parts meet your specifications and perform optimally.
What quality control measures do you have in place?
We have stringent quality control processes, including inspections, testing, and adherence to industry standards, ensuring the highest quality of the molded rubber parts.
Can modifications be made to the order after it has been placed?
Depending on the stage of production, modifications may be possible. We will work with you to accommodate any necessary changes.
Why is curing important in rubber molding?
Curing makes rubber stronger, more flexible, and resistant to heat and wear—so your rubber parts last longer and perform better in real-world use.
Which is better EPDM or silicone for molding?
Both have their strengths—it really depends on what you need. EPDM is great for outdoor use and weather resistance, while silicone handles high temperatures and is super flexible. We work with both, so we can help you choose the best fit for your rubber product and make it happen.
