30t-1800t
pc
K+
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Injection molding is the process of injecting molten plastic or metal feedstock into a mold cavity, rapidly cooling it, then ejecting the solidified plastic part. It is the most widely used manufacturing process for plastic parts and the most affordable route to mass production.
Compared to other manufacturing methods like CNC machining or 3D printing, injection molding requires an upfront investment in tooling. However, once the mold is made, the cost per part drops significantly, especially in high-volume production. This makes injection molding a cost-effective solution for large-scale manufacturing.
Injection molding supports a wide variety of materials, including thermoplastics, thermosets, and even some metals. These materials can be easily combined with pigments and functional additives to customize both the appearance and performance of the final parts. Additionally, because the same mold is used throughout production, the process ensures high consistency and repeatability across every part.
We fabricate injection molding tooling in aluminum for rapid, low-volume prototyping, and in tool steel for mass production. All molds follow SPI classification standards, which define tooling durability and expected cycle life — from Class 105 (prototype use) to Class 101 (high-volume production).
We need to fabricate components like the housing, reflector, and lens on a tight timeline, with real materials for testing. 3D printing, CNC machining, and vacuum casting were unsuitable for this project.
Given the project requirements, mold tooling and injection molding were the only suitable solutions. We optimized the injection molding process by selecting the right materials and refining the mold design to reduce lead time. Aluminum molds were chosen for faster production, and cavity splitting improved efficiency.
Hey guy, We delivered the final 55 full assemble sets to our customer yesterday. They are very happy with the result, and going to assemble them to the cars for testing soon. I would like to thank you for taking this tough project and manage to get everything done in such tight deadline. Please pass my thanks to your team. You are guys are the top gun!! I will be in touch with you when the next project coming. hopefully, we don't have to deal a rush project like this time.
A diverse range of industrial-grade materials is available for molded parts, providing great flexibility for both prototyping and production. Materials include common plastics such as ABS, PC, PP, and PA, as well as high-performance, temperature-resistant options like PEI and PPS.
Learn more about material selection tips and recommendations on our material guide page.
Thanks to 3ERP's 5-axis machining capabilities, we’re able to push the limits on our uprights and wheel package designs for maximum performance. Their bespoke and rapid manufacturing services allowed us to complete our project on time and ahead of schedule.
My prototype from 3ERP arrived earlier than expected with outstanding quality. Their manufacturing standards and machining precision are impressive. Tina provided excellent customer service and clear communication. We consider them our first choice for high-quality prototype manufacturing.
3ERP is my top CNC manufacturing supplier. Their quality, service, and communication are excellent! Production time is consistently fast, and pricing is fair for the level of quality. Kent provides great support throughout the process.
3ERP delivered high-precision parts for our low-volume project with excellent lead time and competitive pricing. Communication with Eko was fast and helpful, and the team even provided useful design feedback. All parts worked perfectly. A perfect solution for precision manufacturing projects.
3ERP was easy to work with and provided excellent communication throughout the process. The parts arrived 5 days earlier than promised with fast delivery and great quality! Highly reliable for precision parts manufacturing.
Great experience with 3ERP for prototyping and low-volume manufacturing. Fast quotes, fair pricing, and excellent communication throughout production. The aluminum extrusion and vacuum casting parts met our dimensional tolerances and arrived on time. High-quality results.
3ERP is a great supplier for stainless manufacturing. Communication was prompt and professional, design changes were handled quickly, and production and shipment were fast. The final parts quality was excellent.
3ERP provided a quick quote, strong technical expertise, and helpful advice on exotic finishes and post-treatments. The team delivered good quality products and supported low-volume production with great communication and understanding of our needs.
Great experience with 3ERP for custom medical product prototypes. They delivered complex multi-axis CNC parts in plastics and metals with tight tolerances, competitive pricing, and fast lead times. Communication and service were excellent.
The first step in our injection molding service is to design the injection mold tool. How long this takes will depend on the complexity of your project. The usual timeline can be as short as a week and as long as a couple of months.
The plastic pellets are melted and then inserted in liquid form into the mold tool, where it cools and takes the required shape. The process allows for high precision and tight tolerances because it can be replicated exactly each time.
Injection molding can use almost any type of plastic that can also be combined together. This unmatched versatility makes injection molding so popular and suitable for some of the most demanding industries in the world. You can check out the selection of available materials and finishes our injection molding service handles on this page.
