Rubber Injection Molding
As a professional rubber injection molding manufacturer, Zhongde introduced rubber injection molding machines and automatic machines for low-volume and mass production requirements.
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Zhongde Rubber Injection Molding Service
Zhongde is a reliable rubber moulding supplier. The rubber injection molding technology can be used to produce both solid rubber parts and rubber bonding metal parts. The same as plastic injection molding, Our custom rubber injection molding service covers butyl rubber injection molding, nitrile rubber molding, silicone rubber injection molding, etc. The fully automated rubber injection molding process is the most efficient way to manufacture custom silicon injection molded products. If you are looking for a rubber injection molding company, Zhongde would be your best choice.
Injection Molding From Prototyping to Production
Injection Molding Molds Making and Tooling Services
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 below.
|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.|
Rubber Injection Molding Size Chart
The below table shows the regular size of the custom rubber injection molding parts. If you need a larger size or other unique requirements about the size, Zhongde as a professional China precision rubber injection molding manufacturer, can also help you achieve it at a competitive price.
Rubber Injection Molding Materials
At Zhongde, we not only offer a wide range of injection molding 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 are listed below for custom rubber injection molding.
- UV absorbers
- Flame retardants
- Vulcanizing ageent
Rubber Injection Molding Types
The rubber molding can be divided into 3 types based on the rubber material properties. They are butyl rubber injection molding, nitrile rubber injection molding, and LSR liquid silicone rubber injection molding. Here are some custom rubber molded parts for each type of rubber injection molding.
Rubber Injection Molding Surface Finishing
Injection molding 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.
Different grades of surface finishing chart.
A-grade finish is smooth and highly reflective, giving the product a shiny appearance. It’s often used for products where aesthetics are important.
The Rubber Injection Molding Process
The rubber injection molding process mainly includes 4 stages, such as filling, pressure maintaining, cooling, and stripping. These 4 stages directly determine the custom rubber moulding products’ quality, and these 4 stages are a complete continuous process.
1. Filling stage
The filling is the first step in the entire 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 pressure-holding stage is to apply continuous pressure to compact the melt and increase the density of the rubber (densification) to compensate for the shrinking behavior of the rubber.
3. Cooling stage
In 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.
Zhongde - A Professional Rubber Injection Molding Company
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Our sales team will contact you within 24 hours. We are glad to answer your questions.
The lead time depends on factors like part complexity, quantity, and current production schedule. We provide estimated timelines based on your project details.
Yes, our team can provide design assistance and engineering support to ensure your rubber parts meet your specifications and perform optimally.
We have stringent quality control processes, including inspections, testing, and adherence to industry standards, ensuring the highest quality of the molded rubber parts.
Depending on the stage of production, modifications may be possible. We will work with you to accommodate any necessary changes.