Plastic Injection Molding Services in China

At our company, we provide top-quality custom injection molding services to help businesses produce high-quality parts. Our services include everything from design and tooling to production and assembly. Get a CNC quote now!

Custom injection molding parts manufacturer in China

Injection molding is a manufacturing process in which molten materials are injected into a mold to create products of various shapes and sizes. This is a widely used industrial process and is popular for mass production of plastic parts. We are a professional China manufacturer of custom injection molded parts. We can produce plastic parts for various industries.

Whether you need a large volume of parts or just a few, we can help. From start to finish, we provide comprehensive services to take your product from prototyping to production parts. So if you need injection molding services, look no further than our company.

plastic injection molding services

Design and Manufacture Plastic Injection Molds

Plastic injection mold tooling is an essential component of the injection molding process. Molds are custom-made tools designed to shape melted plastic into a specific size, shape, and form. Our production tooling is suitable for producing hundreds of thousands of parts.

Generally, molds can be made from tool steel. The design of the mold will depend on several factors, including the size and complexity of the part, the production volume, and the desired tolerances of the finished product. Tolerances for injection molds can be as tight as 0.001 inches, which is essential for achieving precision parts.

Proper mold maintenance is crucial for achieving consistent and reliable results. We have a dedicated mold room designed to ensure the proper maintenance of molds, including cleaning, repair, and replacement of worn or damaged components.

injection mold

Types of injection Molding

Injection molding is a highly efficient manufacturing process that has revolutionized the production of plastic parts. The process involves melting plastic pellets or resin and injecting the melted material into a mold under high pressure. Once the material cools and solidifies, the mold is opened, and the finished part is ejected. This process is widely used in manufacturing a range of products, including automotive parts, medical devices, and consumer goods.

insert Molding

Insert Molding

Insert molding is a type of injection molding technique that involves inserting a pre-manufactured part or component, such as a metal pin or screw, into the mold before the plastic is injected. The plastic is then molded around the insert, creating a finished product that combines the benefits of both the insert and the plastic. Insert molding is particularly useful in creating complex parts that require a combination of materials, such as electrical components and connectors.



Overmolding is similar to insert molding, but it involves layering one material over another. In overmolding, one material is first molded onto the existing part or substrate. Then, a second material is molded over the first to create a single, composite part. The resulting part has multiple layers with different properties and can be used in a range of applications, from handheld devices to automotive parts. Overmolding provides excellent grip and shock resistance, making it ideal for creating comfortable handles.

Liquid Silicone Rubber Molding

Liquid Silicone Rubber Molding

Liquid Silicone Rubber (LSR) molding is a specialized type of injection molding that uses liquid silicone rubber to create parts. LSR is a high-performance material that offers excellent heat resistance, strength, and durability. This makes it ideal for creating parts for medical devices, automotive applications, and consumer goods. LSR molding involves injecting the liquid silicone rubber into the mold at high pressure, where it quickly cures into a solid part. LSR molding produces high-quality parts with tight tolerances and excellent surface finishes.

Materials Used in Injection Molding

Injection molding produces a wide range of products made from thermoplastic materials. Thermoplastics are chosen for injection molding because of their ability to be melted and re-hardened repeatedly without significant loss of quality or structural integrity. Some of the most commonly used plastic materials in injection molding include:

Common thermoplastic materialsOther supported materials
Acrylonitrile Butadiene Styrene (ABS)Nylon (PA 6, PA66, PA12)
Polyethylene (PE)Polycarbonate/Acrylonitrile Butadiene Styrene (PC/ABS)
Polypropylene (PP)Polyurethane (PU)
Polycarbonate (PC)Polymethyl Methacrylate (PMMA/Acrylic)
Low-Density Polyethylene (LDPE)
Low Density Polyethylene (LDPE)
Polystyrene (PS)
POM (Acetal/Delrin)
Polyethylene Terephthalate (PET)
Thermoplastic Elastomer (TPE)
Thermoplastic Vulcanizate (TPV)
Polyetherimide (PEI)
Polysulfone (PSU)

Gallery of Injection Molding Parts

Our gallery of injection molding parts showcases the quality and versatility of our injection molding services. It features a range of products that demonstrate our expertise in producing custom-molded plastic parts for various industries, including automotive, medical, and industrial applications.

Injection molding plastic case
Injection molding plastic case
Injection molded medical parts
Injection molded auto parts


With years of experience in the industry, our team of experts possesses the necessary skills and knowledge to handle even the most complex injection molding projects.


We are committed to delivering high-quality products that meet or exceed our customers’ expectations. Our state-of-the-art equipment and materials ensure that our products are both consistent and durable.

Customer service

Our team is dedicated to providing exceptional customer service. We work closely with our customers to understand their needs and devise solutions that meet their specific requirements.


We believe in taking responsibility for our impact on the environment and have implemented sustainable practices in our production process. Our materials are recycled and we minimize waste and emissions wherever possible.


Why Choose Our Plastic Injection Molding Services in China?

Secondary Operations

We offer a range of secondary finish options for our injection molding parts to give you a complete and customized end product. Our services include laser engraving, pad printing, painting, polishing, and creating dull finishes.

Laser engraving is a precise and permanent way to mark your product with anything from logos to part numbers.

Pad printing is perfect for small, intricate designs. Painting is a great way to add vibrant colors to your product.

Our polishing process gives your parts a smooth, reflective finish, while our dull finish gives them a matte look.

With our secondary operation services, we ensure that your product stands out from the rest.

Applications of Injection Molding Parts

Injection molding parts are suitable for a wide range of applications across various industries. Some of the most common applications of injection-molded plastic parts include:

  1. Automotive: Injection-molded plastic parts are widely used in the automotive industry to produce interior and exterior parts, such as dashboards, door panels, bumpers, and headlights.
  2. Consumer Goods: Injection molding is used to produce many consumer goods, including electronics, toys, kitchen appliances, and personal care products. Examples include phone cases, game controllers, coffee makers, and razors.
  3. Medical: Injection molding is critical to the medical industry to produce highly precise and complex devices and parts like surgical instruments, medical implants, and diagnostic equipment.
  4. Packaging: Injection-molded plastic parts are used in many packaging applications, including containers, caps, and closures.
  5. Aerospace: Injection molding is used in the aerospace industry to produce lightweight and durable components like panels, ducting, and seating.
  6. Industrial applications: Injection molding is also used in various industrial applications to produce complex parts and components that can withstand harsh conditions, such as heating and cooling systems, pumps, and valves.

Injection molding allows for the precise manufacturing of plastic parts, making them a perfect choice for industries that require high-quality custom parts.

Injection Molding Services FAQs

There are significant advantages to choosing injection molding as a manufacturing solution. Here are some of the key benefits:

  1. High precision: Injection molding provides excellent accuracy and tight tolerance levels, creating products with exceptional precision and consistency.
  2. Wide material selection: Injection molding works with various materials, such as plastics, metals, and rubber, allowing for flexibility to match the requirements of different industries.
  3. High efficiency: By using automated machinery, injection molding processes are fast and can produce high volumes of products in a short amount of time, reducing production costs.
  4. Reduced waste: Injection molding produces minimal waste and can utilize recycled materials, making it an eco-friendly manufacturing process.
  5. Flexibility in design: With injection molding, designs can be modified with ease, and custom changes can be made to meet specific requirements.
  6. Cost-effective: Injection molding can be cost-effective for large-scale production runs, reducing manufacturing costs over time.
  7. Low labor costs: The automation of the injection molding process means that fewer labor-intensive steps are required, reducing costs associated with manual labor.

Overall, injection molding offers many advantages for manufacturers requiring high precision and high volume production. Contact us today to learn more about how our injection molding services can meet your business needs.

In general, injection molding can be more cost-effective than CNC (Computer Numerical Control) machining for high-volume production runs. That’s because injection molding processes are highly automated, requiring minimal labor costs while producing parts at a high rate.

CNC machining, on the other hand, is a more labor-intensive process, involving programming, tooling, and setup time. CNC machining can provide better accuracy and precision but is typically not as efficient as injection molding for producing large volumes of parts.

However, the cost of injection molding can vary based on several factors, including material selection, equipment selection, and design requirements.

Contact us today to discuss which manufacturing process is best suited for your specific needs and budget.

Choosing a reliable supplier or manufacturer of injection molding parts is crucial for ensuring quality products and a smooth manufacturing process. To choose a reliable manufacturer, consider the following:

  1. Experience: Look for a manufacturer with years of experience in the industry and a proven track record of delivering high-quality products.
  2. Capabilities: Check the manufacturer’s capabilities to ensure they can handle your specific project needs, such as material selection, part size and complexity, and production volume.
  3. Quality control: Ensure the manufacturer has robust quality control measures, including inspections throughout the production process and testing of finished products.
  4. Customer service: Choose a manufacturer with good customer service, who is committed to understanding your specific requirements and providing solutions that meet your needs.
  5. Cost-effectiveness: While cost is not the sole factor, choose a manufacturer who can provide competitive pricing without sacrificing quality.
  6. Reputation: Check the manufacturer’s reputation in the industry, including customer reviews and referrals from other industry professionals.

Overall, choosing a reliable manufacturer requires careful consideration of their experience, capabilities, quality control, customer service, cost-effectiveness, and reputation. Contact us today to learn more about our injection molding services and how we can help you with your project needs.

Get an Injection Molding Quote for Custom Plastic Parts!

Are you in need of custom plastic injection molding parts for your business? Don’t settle for less than perfection. Let our team of experts create exactly what you need. Contact us now to get an online quote and see how we can exceed your expectations. Let’s get started today!