Injection Molding Services
Get free injection molding quotes and expert feedback for rapid molds, production tooling and custom molded prototypes in 48hrs. 100+ thermoplastic, thermoset materials available. ISO 9001:2015, IATF 16949:2016 certified.
Plastic Injection Molding Services for Custom Parts
Our injection molding process is streamlined to handle everything from plastic prototypes to production parts, with a standard lead time of 20 business days. For projects requiring faster turnaround, our quick turn injection mold services are the perfect solution. Recognizing the complexities involved in injection molding projects, we provide expert consultation to assist in transitioning from design to production seamlessly. Located in China, our extensive manufacturing network utilizes injection molding machines ranging from 90 to 1600 tons, enabling us to produce parts of various sizes and complexities.
a, Injection Mold Tooling
Crucial for mass production, involves machining, and assembling durable molds from steel or aluminum to ensure precise and repeatable part geometries.
● Aluminum and steel injection mold.
● Achieves detailed geometries.
● Ideal for mass production.
Learn More
b, Overmolding
Overmolding improves product functionality and aesthetics by fusing different materials into one part, adding features like soft grips and multi-color designs for enhanced usability
● Improves strength and lifespan.
● Combines different materials seamlessly.
● Offers color and texture options.
c, Insert Molding
Insert molding integrates metal or other materials into plastic parts during molding, enhancing strength and reducing assembly time for components with embedded features.
● Reduces assembly steps.
● Enhances component durability.
● Lowers production expenses.
Injection Molding Solutions
ZHJMs custom injection molding services can seamlessly bridge the gap from prototyping to high-quality production. Our solutions accelerate product development cycles and ensure the delivery of superior injection molded parts, streamlining your path from concept to market. Experience efficiency and quality in every project phase with RapidDirect.
A, PROTOTYPING-Rapid Tooling
Address critical time-to-market needs by providing flexibility and economic efficiency for iterative development before full-scale production.
● Utilize aluminum or steel molds, which are perfect for rigorous testing and iterative processes.
● Typically single cavity, allowing for precise control during the prototype phase.
● Efficiently produce anything from a single unit to small batches (up to 2,000 units), facilitating quick market testing and design validation.
B, PRODUCTION- Production Tooling
Support large-scale manufacturing demands, effectively overcoming common production challenges and offering on-demand production capabilities.
● Durable steel molds designed for high repeatability across extensive production runs.
● Available in single or multi-cavity configurations to optimize productivity and cost-efficiency.
● Ability to scale production seamlessly to meet large order demands, ensuring consistent quality and timely delivery.
Materials for Injection Molding
We offer a broad range of thermoplastic and thermoset materials, each selected for its performance characteristics and suitability for different applications.
a.Such as: ABS/ Polycarbonate/ PMMA/ POM/ Nylon/ Polypropylene/ PEEK/ Polypropylene/ HDPE/ HIPS/ LDPE.
| ABS | ABS is strong, durable, and offers good resistance to heat and impact. It’s preferred for automotive components and consumer goods. | ABS Beige(Natural), ABS Black, ABS Black Antistatic, ABS Milky White, ABS+PC Black, ABS+PC White |
| Polycarbonate | Polycarbonate is extremely durable and has high impact resistance, along with excellent clarity, used for bullet-proof glass and protective gear. | PC Black, PC Transparent, PC White, PC Yellowish White, PC+GF30 Black |
| PMMA | PMMA, or acrylic, is known for its crystal clarity and weather resistance, making it ideal for outdoor fixtures and display cases. | PMMA Black, PMMA Transparent, PMMA White |
| POM | POM is strong, with a low friction surface and good dimensional stability, perfect for precision parts in mechanical applications. | Dark brown (coffee) POM 100AF, POM Black, POM Blue, POM White |
| PA(Nylon) | Nylon is versatile, strong, and wears well against friction, commonly used for gears, bearings, and other wear-resistant surfaces. | PA(Nylon) Blue, PA6 (Nylon)+GF15 Black, PA6 (Nylon)+GF30 Black, PA66 (Nylon) Beige(Natural), PA66 (Nylon) Black |
| Polyethylene | Polyethylene is lightweight and has high resistance to impact, widely used in packaging and containers. | PE Black, PE White |
| PEEK | PEEK is renowned for its high temperature resistance and strength, often used in aerospace and medical implant manufacturing. | PEEK Beige(Natural),PEEK Black |
| Polypropylene | Polypropylene is tough, has excellent chemical resistance, and is used for automotive parts, containers, and in packaging. | |
| PP Black, PP White, PP+GF30 Black | PP Black, PP White, PP+GF30 Black | |
| HDPE | HDPE is known for its high strength-to-density ratio, resistance to impacts, and is used in making bottles and corrosion-resistant piping. | HDPE Black, HDPE White |
| HIPS | HIPS is easy to machine and offers good dimensional stability and impact resistance, suitable for prototyping and modeling. | HIPS Board White |
| LDPE | LDPE is soft, flexible, and used in applications where heat sealing is required, such as in tubing and plastic bags. | LDPE White |
| PBT | PBT is a strong, rigid plastic that is heat resistant and commonly used in electrical components and casings. | PBT Black, PBT Milky White（Natural） |
| PVC | PVC is robust, cheap, and has good chemical resistance, used in plumbing, medical devices, and cables. | PVC Grey |
| PET | PET is strong, resistant to moisture and chemicals, and widely used in food containers and textile fibers. | PET Black, White, PET+GF30 Black, PET+GF30 White |
Injection Molding Surface Finishes
Our expertise also extends to providing SPI finishes for plastic injection molds that enhance the aesthetics and functionality of your plastic molded parts.
| SPI FINISH STANDARD | SURFACE ROUGHNESS RA (μm) | FINISHING METHOD | FNISHING LOOK |
| SPI A1 | 0.012 to 0.025 | 6000 Grit Diamond | Super High Glossy finish |
| SPI A2 | 0.012 to 0.025 | 3000 Grit Diamond | High Glossy finish |
| SPI A3 | 0.05 to 0.10 | 1200 Grit Diamond | Normal Glossy finish |
| SPI B1 | 0.05 to 0.10 | 600 Grit Paper | Fine Semi-glossy finish |
| SPI B2 | 0.10 to 0.15 | 400 Grit Paper | Medium Semi-glossy finish |
| SPI B3 | 0.28 to 0.32 | 320 Grit Paper | Normal Semi-glossy finish |
| SPI C1 | 0.35 to 0.40 | 600 Grit Stone | Fine Matte finish |
| SPI C2 | 0.45 to 0.55 | 400 Grit Stone | Medium Matte finish |
| SPI C3 | 0.63 to 0.70 | 320 Grit Stone | Normal Matte finish |
| SPI D1 | 0.80 to 1.00 | Dry Blast Glass Bead | Satin Textured finish |
| SPI D2 | 1.00 to 2.80 | Dry Blast | Dull Textured finish |
| SPI D3 | 3.20 to 18.0 | Dry Blast | Rough Textured finish |
Injection Molding Capabilities
ZHJM’s custom overmolding services ensure the creation of plastic parts that look and perform better. Our production line consists of an overmolding injection molding process that allows us to combine several different materials into one, ensuring you get superior-quality products.
| Standards | Description |
| Maximum Part Size | 1200×1000×500mm, 47.2×39.4×19.7 in. |
| Manimum Part Size | 5×5×5mm, 0.19×0.19×0.19in |
| Part to Part Repeatability | +/- 0.1 mm. +/- 0.004 in |
| Mold Cavities | Single-cavity molds, multi-cavity molds, family molds |
| Available Mold Types | Steel and aluminum molds. |
| Production levels below 1000, 5000, 30000, and over 100000 use | |
| Mold Cavity Tolerances | +/- 0.05 mm |
| Secondary Operations | Mold texturing, pad printing, laser engraving, threaded inserts, and basic assembly |
| Undercuts | Y-type, L-type undercuts |
| Wall Thickness | 0.5 mm to 5 mm |
| Draft | Draft |
| RIbs/Gussets | 0.5 mm to 3 mm thick |
| Bosses | Diameter 3 mm to 10 mm |
| Lead Time | Most orders can be completed within 20 working days |
How Does ZHJM Injection Molding Process Work
See how ZHJM processes your orders, from quotation on our online quoting platform, high-quality injection mold making, to production-grade plastic parts, ensuring timely delivery with our skilled team and machinery.
A, Upload Design File
Start by uploading your 3D CAD files and 2D drawings to our platform, setting the stage for precise custom molding.
B, Get Quote with DFM
After configuring materials, surface finishes, and shipping options, receive a detailed quote and manufacturability feedback within TWO days.
C, Review T1 Sample
A T1 sample is provided for your approval to ensure every detail aligns with your specifications, typically within 3 weeks.
D, Production Begins
Following your approval of the T1 sample, we initiate full-scale production, maintaining high standards of quality and precision.
E, Delivery
We deliver your custom injection molded parts directly to your doorstep, ensuring they are ready for immediate use.
F, Ready to Start
Start your injection molding project with ZHJM. Experience efficiency like never before!
Applications of Injection Molding
Injection molding is a critical process for creating diverse components with precision and efficiency. Key applications by part type include:
● Gears: Produces high-tolerance and durable gears used in various mechanical and electronic devices.
● Housings: Ideal for manufacturing robust housings for consumer electronics, automotive components, and industrial machines.
● Enclosures: Creates enclosures for electronics, ensuring precise fit and protection for internal components.
● Handles: Fabricates ergonomic and durable handles for tools, appliances, and other consumer products.
● Caps and Closures: Efficiently manufactures caps and closures for bottles and containers, ensuring tight seals and product integrity.
● Connectors: Produces small, intricate connectors for electrical and electronic applications, where precision is crucial
Advantages of Injection Molding
Injection molding is a preferred method for producing complex parts efficiently and with high consistency. Key advantages include:
● High Repeatability: Ensures uniform product quality, even across large production volumes.
● Material Diversity: Supports a wide range of materials, allowing for optimal selection based on durability, flexibility, and other required properties.
● Cost-Effectiveness: Particularly advantageous for mass production, as initial mold and setup costs are balanced by low per-unit expenses at high volumes.
● Complex Designs: Capable of producing intricate parts, reducing the need for additional assembly.
● Multi-Material Integration: Techniques like overmolding allow for the incorporation of multiple materials in a single part, enhancing both functionality and aesthetics.
Disadvantagess of Injection Molding
Injection molding is a popular method for making plastic parts, but it has some disadvantages.
● High Initial Costs: Setting up for injection molding requires expensive machinery and molds. This can be a significant investment, especially for small-scale productions.
● Limited Design Changes: Once a mold is made, altering the design of the product can be costly and time-consuming. This limits flexibility in the production process.
● Material Restrictions: Injection molding is primarily used with certain types of plastics. This means not all materials can be used, which might restrict the application of this method depending on the project requirements.
● Environmental Concerns: The process often uses plastics that are not biodegradable. Disposing of leftover materials can be harmful to the environment unless properly managed.
● Waste Production: During injection molding, excess plastic is often produced which leads to waste. Although this can sometimes be recycled, it adds an extra step in the manufacturing process.
Why
Choose ZHJM
Founded in 2009 by Mr Huang, with over 20 years of combined professional experience in Aluminum/Zinc die casting
and CNC machining in Dong Guan of China. In 2021, we launched injection molding and sheet metal fabrication services.
ZHJM provides highly trained engineers to support your project. We are ISO 9001: 2015 and IATF16949:2016 Accredited.
How may we help you?
Let's Start