22+
Over 22 Years of Experience in Injection Molding
3000+
Trusted by 3,000+ Enterprise Customers Worldwide
10000+
Completed 10,000+ Custom Injection Molding Projects
20000+
Processed 20,000+ Design Drawings for Manufacturing
Custom Injection Molding Services
We offer end-to-end injection molding solutions, from prototyping to low volume manufacturing, to mass production, with optional assembly services. Our facility is equipped with medium-sized (100-500T) machines, 500T-650T machines, and 1000T large machines, enabling us to handle diverse part sizes and complexities.
With a daily output of 100,000 parts, we specialize in engineering components, two-color molding, and aesthetic parts. We can produce parts up to 1.2m in size, ensuring high-quality and efficient manufacturing for your needs.
Injection Molding Parts Cases
RJCmold’s engineering design team can take your project from concept to design by supporting customers’ designs for manufacturability and mold flow analysis.
View supported materials >>
Ready to Start your Injection Molding Project?
Upload your design files to receive instant pricing and lead times. Our team is ready to help you bring your parts to life.
Offering low-volume injection molding services to help you quickly capture the market.
Our Injection Molding Capabilities
We offer flexible injection molding solutions, capable of handling everything from rapid prototyping to large-scale production. With a focus on precision and fast lead times, we ensure plastic parts that meet your custom requirements. Our services also include secondary operations to support your project’s complete needs.
| Category | Details |
|---|---|
| Lead Time | Starts at 5 business days; most orders within 15 days. |
| Materials | ABS, PC, PP, PA, POM, PBT, PE, PS, TPU, PEEK, PPS, and custom resins. |
| Machines & Mold Types | 50T – 1100T machines; single/multi-cavity & family molds; steel & aluminum molds. |
| Part Size Range | 5 × 5 × 5 mm to 1200 × 1000 × 500 mm |
| Tolerances & Precision | Mold cavity tolerance ±0.02 mm; part repeatability ±0.1 mm. |
| Wall Thickness & Features | 0.5 mm – 5 mm walls; 0.5° – 2° draft; undercuts, ribs, gussets, bosses. |
| Production Volumes | Prototype to mass production (up to 100,000+ cycles). |
| Secondary Operations | Mold texturing, pad printing, laser engraving, threaded inserts, assembly. |
Materials for Injection Molding
These are commonly molded plastics that our injection molding service provides. After knowing the basics of materials, like common grades, brands, advantages, and disadvantages, choose the right injection molding material depending on your application requirements.
| Category | Materials |
|---|---|
| Tooling Materials | 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 |
| Rigid Plastics | ABS, ASA, CA, HDPE, LCP, LDPE, PA6, PA6/6, PARA, PBT, PBT-PET, PC, PC-ABS, PC-PBT, PC-PET, PCT, PE, PEEK, PEI, PE-PP, PE-PS, PES, PET, PLA, PMMA, POM, PP |
| Elastomers & Rubbers | EPDM, PEBA, PVC, TPE, TPU, TPV, LSR |
Our Injection Molding Services for Various Industrial Applications
RJCmold works with leading manufacturers from different industries to support growing demands and streamline their supply chain. The digitalization of our custom injection molding services helps more and more manufacturers bring their idea to products.
We understand that the medical equipment components we produce are on the critical path for pre-production testing, validation and verification, and limited market release production.
Our expert automotive manufacturing team can help you design moldable parts that are optimized for manufacturing in collaboration. You’ll find that we’re dedicated to helping you achieve your program objectives on time and cost-effective.
RJC has made a series of investments in developing new technologies to optimize processes. RJC is proficient in providing customers with customized mold manufacturing such as injection molding, insert molding, and multi-cavity molding, and has a group of trustworthy customers.
A customer-oriented, agile organisational structure, short decision-making paths, an efficient process environment and our modern technical equipment support the result-oriented project implementation of your solution.
We understand that the components we produce are on the critical path for prototype evaluation and pre-production testing for various applications in the aerospace industry, including interior aircraft components, drone components, wiring organization components, and many others.
Injection Molding Service FAQs
Find answers to common questions about material selection, quality control, lead times, cost optimization, and design considerations. This section helps you make informed decisions and ensures a smooth manufacturing process.
We offer a wide range of materials, including ABS, PC, PP, PA, POM, and high-performance resins like PEEK and PPS. The right choice depends on factors like mechanical strength, heat resistance, and chemical exposure. If you’re unsure, our team can recommend the best material based on your application.
We maintain tight tolerances—mold cavity tolerance of ±0.02 mm and part repeatability of ±0.1 mm. Our process includes strict quality control checks, including first-article inspection, in-process monitoring, and final testing to ensure every batch meets specifications.
Lead times start at 5 business days, with most orders completed within 15 days. Factors like mold complexity and production volume can affect delivery time, but we prioritize efficiency without compromising quality.
We optimize costs by offering both steel and aluminum molds, single/multi-cavity options, and family molds to maximize efficiency. We also provide design feedback to help reduce unnecessary complexity and minimize production expenses.
- Wall thickness between 0.5 mm – 5 mm for optimal strength
- Draft angles of 0.5° – 2° to aid mold release
- Avoiding sharp corners to reduce stress points
If needed, our engineers can assist in refining your design for better performance and cost-efficiency.
Yes, we provide mold texturing, pad printing, laser engraving, threaded inserts, and assembly services to deliver finished parts ready for use.
Yes, we support everything from low-volume production to mass production, accommodating orders up to 100,000+ cycles.
At Rjcmold, we design and create precise custom injection molds from high-quality materials. Our processes ensure unmatched consistency and repeatability at fast lead times and affordable pricing. Every plastic injection molding we fabricate meets international standards. From one-off projects to small batches and production tooling, we provide durable and reliable mold tools.
| Mold Class | Purpose | Shot Life | Tolerance | Lead Time |
|---|---|---|---|---|
| Class 105 | Prototype Testing | Under 500 cycles | ± 0.02mm | 7-10 days |
| Class 104 | Low-volume Production | Under 100.000 cycles | ± 0.02mm | 10-15 days |
| Class 103 | Low-volume Production | Under 500.000 cycles | ± 0.02mm | 10-15 days |
| Class 102 | Medium-volume Production | Medium to high production | ± 0.02mm | 10-15 days |
| Class 101 | High-volume Production | Over 1,000,000 cycles | ± 0.02mm | 10-18 days |
| Name | Description |
|---|---|
| Glossy | A grade finishes are made using a diamond buffing process and yield shiny and glossy surfaces on injection molded parts. |
| Semi-glossy | B grade finishes use grit sandpaper to produce parts with a slightly rougher finish than grade A parts. Custom molded plastic parts that undergo B grade finishing have a matte surface texture. |
| Matte | C grade finishes use grit sanding stones to produce a rough, uneven surface. Injection plastic parts that undergo C grade finishing have a matte surface texture. |
| Textured | CD grade finishes use grit and dry glass beads or oxide to produce a very rough textured finish. Depending on the type of material used, products can have a satin or dull finish. |
