Plastic Injection Molding Services
Get comprehensive services from our professional injection molding company, including plastic parts and mold design, mold manufacturing, and injection molding. Get bulk pricing and DFM in 1 day.
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Certifications
ISO 9001:2015 | ISO 13485：2016 | IATF16949
Injection Molding to Shape Your Ideal Products
BOYI is a leading plastic injection molding manufacturer, dedicated to providing efficient and high-quality production of plastic parts. With a modern 2,000 square meter facility in China, equipped with advanced injection machines ranging from 50 to 1,000 tons, we ensure rapid, large-scale delivery. Whether it’s two-shot molding, silicone injection, or insert and overmolding, our expert team supports you throughout the entire process, from design to production, ensuring a seamless transition every step of the way.
Efficient Plastic Injection Molding Solutions by BOYI
Let us help you turn your ideas into reality with precision and efficiency!
Create reliable injection molds for different stages of product development, helping customers achieve efficient and large-scale production of plastic parts.
Insert molding can combine the characteristics of different materials together, not limited to using plastic as the substrate. This method can add plastic coatings or components to prefabricated metal parts.
Overmolding is a method of manufacturing parts using multiple materials. Add injection material layers to existing injection molded parts to form composite parts or construct layered parts.
Two shot injection molding allows the use of two or more different-colored plastic resins in a single operation, producing customized plastic parts that enhance both functionality and visual appeal.
Silicone rubber molding is a specialized process for producing flexible, highly durable parts. It is widely applied in the medical, electronics, and consumer goods industries, ensuring superior product performance and quality.
Plastic Injection Molding
As the most widely used plastic part manufacturing process, plastic injection molding utilizes thermoplastic or thermosetting materials, making it suitable for all stages from prototype development to mass production.
Start your project with us today!
With every order, you will receive finishing options, first article inspection, comprehensive manufacturing analysis, free design consultation services, and quality reports such as FAI and process capability reports.
Injection Molding Capabilities
We adopt advanced production technology and highly precise manufacturing processes to ensure that each injection molded part meets the highest standards. Please refer to the table below for the standard range we provide.
| Standards | Details | |
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Maximum Part Size |
1200×1000×300mm |
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Minimum Part Size |
1×1×1mm |
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Mold Cavity Tolerances |
±0.01mm |
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Mold Material |
Steel and aluminum tools |
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Mold Type |
Single, multi-cavity, and family molds; The production levels we provide: below 1000 times, below 5000 times, below 30000 times, above 100000 times. |
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Part to Part Repeatability |
±0.005mm |
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Tool Ownership |
Customer owned |
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Secondary Operations |
Mold texture, transfer printing, laser engraving, threaded inserts, and basic assembly. |
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Inspection and Certification Options |
Quality reports such as FAI, ISO 9001, ISO 13485, etc.(View our quality control standards) |
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Lead Time |
15 business days or less |
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Plastic Injection Molding Cases
Discover the capabilities of our plastic injection molding service through our detailed case studies.
Tour Our Mold Manufacturing Center
Watch our video for a quick tour of our 2,000 square meter manufacturing facility in Dongguan, Guangdong, China, to learn more about Boyi’s mold manufacturing and injection molding capabilities.
We have 16 high-speed and precision CNC machining centers for mold processing, 11 EDM machines, 4 wire cutting machines, 4 grinder machines , 20 50-1000T injection molding machines ,1 CMM detect centers and 1 2.5 Dimension measuring instrument respectively, & etc. overseas and domestic brand high-precision production and inspection & testing equipments.
Injection Molding Materials
The following are common materials used for injection molds and plastic parts. If you are looking for alternative material options, please contact BOYI team.
Mold Materials
- Tool Steel
- Mold Steels
- Hardened Alloys
- Heat-Treated Steels
- Aluminum Alloy
- Stainless Steel
Plastics Material
- Nylon
- HDPE
- LDPE
- GPPS
- HIPS
- PVC
- ABS
- PET
- Polypropylene
- Acetal Copolymer
- Polycarbonate
- PA6/PA66
- PMMA
- Polysulfone
- Polyethersulfone
- POM
- EPM/EPDM
- Acrylic Rubber
- PVDF
- PETG
BOYI can also purchase customized plastic materials according to requirements.
Injection Molding Part Surface Finishes
BOYI offers advanced surface finishes for injection molded parts, providing both standard and custom finishing options.
SPI Finishes
From high polish to low polish, we offer a variety of SPI grades such as A-1, A-2, B-1, B-2, C-1, and more.
VDI Surface Finishes
VDI 3400 finish standard, achieved via EDM machining, offers fine to coarse matte textures for precision molding.
Mold Texturing
Common options include MoldTech MT11010, MT11020, MT11030, with custom textures available.
Standard Finish
Typically SPI B-2, for interior, non-cosmetic surfaces. Suitable for general molding needs without secondary processing.
Threaded Inserts
Installation of standard UNF and metric threaded inserts for secure, reinforced connections in molded parts.
Laser Engraving
Engraving of logos, part numbers, and custom text with high accuracy for long-lasting marks.
As Molded
No additional polishing or grinding. Tooling marks are visible on the surface, ideal for non-cosmetic applications.
Assembly Services
Comprehensive assembly and labeling for injection molded parts, designed to streamline production and delivery.
Pad Printing
Printing 2D images onto 3D parts with high precision. Custom designs are subject to approval.
Why Choose Us for Custom Plastic Injection Molding?
1 Million+ Parts/Year
High-Volume Production
99.9% on-Time Delivery
Reliable and Punctual
50+ Materials
Wide MaterialOoptions
0.01 mm Tolerance
Exceptional Precision
Fast Turnaround
With our quick response and action system , molds leadtime as low as 7-15 days ,injection parts producing time as low as 72 hours.
No MOQ
On demand Producement of parts with no minimum order quantity can help meet your flexiable needs suit to the market.
Strict Quality Control
All our products meet strict tolerance criteria and quality standards, making us one of leading injection mold maker in China.
Security Confidentiality
We sign NDA with clients and make in-house production to keep confidentiality for your projects.
Gallery of Plastic Injection Molding Parts
Understanding our injection molding capabilities, the following shows the plastic prototypes and on-demand production parts we manufacture for our customers.
What is Injection Molding?
Injection molding is a manufacturing process used to produce parts by injecting molten material (usually plastic or rubber) into a mold cavity. The material is heated until it becomes a liquid and then injected under high pressure into the mold, where it cools and solidifies into the shape of the cavity. This process is widely used to create parts with complex shapes and high precision, particularly for high-volume production.
Key steps in the injection molding process:
- Heating: Material is melted.
- Injection: Molten material is injected into the mold.
- Cooling: Material solidifies in the mold.
- Ejection: The part is ejected from the mold.
Applications
Injection molding is versatile and can be adapted for almost any industry requiring precise, durable, and cost-effective parts, such as:
- Automotive components (e.g., dashboards, bumpers)
- Medical devices (e.g., syringes, implants)
- Consumer electronics (e.g., smartphone cases, connectors)
- Packaging (e.g., bottle caps, containers)
- Toys (e.g., LEGO bricks, action figures)
- Home appliances (e.g., handles, knobs)
- Aerospace parts (e.g., interior components)
- Industrial equipment (e.g., housings, gears)
- Sports equipment (e.g., helmets, grips)
Advantages
Injection molding is a preferred manufacturing process for industries needing high-quality, complex, and scalable part production. The key advantages are as follows:
- Capable of complex designs
- Wide material compatibility
- Strong, durable parts
- Suitable for mass production with fast cycle times
- Low per-part cost as production scales up
- Efficient use of material with minimal scrap
- Consistent quality and tight tolerances
- Wide color and texture options
Injection Molding FAQ's
The cost depends on factors like mold design, material choice, part complexity, and production volume. Click here to upload your design, and our professional engineers will evaluate the cost for you.
Yes, we welcome low volume customization orders. We aim to provide flexible production solutions, whether for high-volume production or small-scale orders.
Usually the mold delivery time is as low as 7 days. Production time for injection molded parts is as low as 72 hours. We strive to ensure that orders are fulfilled in the shortest possible time and product quality is maintained.
Yes, we provide mold design and manufacturing services to ensure that the molds meet your product specifications and quality requirements.
Injection molding is ideal for high-volume production with consistent quality, whereas 3D printing is more suited for prototyping and low-volume runs. Injection molding can produce stronger, more durable parts.
Injection Molding Manufacturing Resources
The latest news, trends, and manufacturing design techniques related to customized plastic injection molding.
Medical Grade Silicone Molding for Complex Designs
Injection Molding Parts of a Hair Dryer – Design Guide
