
Go4mould-China Plastic Mould Manufacturer
GO4 Mould as a manufacturer of plastic injection molding China. Our company has successfully completed hundreds of injection mould projects for customers from various industries. Through these project collaborations, we have gained extensive experience in mould design and injection mould manufacturing. They have also enriched our understanding of the requirements of injection moulds for different types of products. You can count on us to provide you with the right injection moulding solution.
Competitive And Transparent Pricing
Our quotations are based on product samples or drawing requirements. All profits are guaranteed to be no more than 10% of the cost. Get the best efficiency for your project. Perhaps our prices are not the cheapest in China. But trust us to help you speed up your project, reduce abnormal downtime, improve the quality of your castings, and increase the life of your molds. As a result, you will gain an increasing advantage over your competition in the marketplace. Read more……

Plastic Injection Molding China Service
Go4mould is a well-known supplier of plastic injection moulds in China. We provide you with one-stop mould making services.
Custom plastic molding
Injection mold design
Plastic moulding process
Mould steel material
Injection molding quality control
In-Mold Labelling (IML)
Trustworthy Plastic Injection Molding China
- Factory View
- Technical Data

| Mould Base | SD,LKM Standard, HASCO Standard Self-made, etc. |
|---|---|
| Mould Material | M238/718S/M238H/718H/M202/MUP/M310/S136/M300/S136H/2738H/NAK80/K460,etc |
| Moud Precision | ±0.01mm |
| Mould Life | 50-500K shots |
| Mould Cavity | Single cavity, multi-cavity |
| Runner System | Hot runne system and the temperature control system |
| GateType | Pinpoint Gate, Edge Gate, Sub Gate, Film Gate, Valve Gate, Open Gate, etc. |
| PlasticMaterial | ABS+PC,ABS+PVC, PP+EVA, PP+LDPE, PE+PP, PE+PE, PE+PB ,PE, PP ,PA ,POM ,PC,etc |
| Metal Material | Aluminum (6061,6063,7075…),Brass, Copper, Brass,Satinless Steel(301,302,303,304…) |
| Surface Treatment | Polishing,Painting,Chroming,Anodizing, Brushing, Silk Screening,Water Transfering, Laser Cutting,Leather Covering,Texture,Sanblasting,Gilding, UV Painting… |
| Pls Provide | 2D, 3D, samples, or the size of the multi-angle pictures |
A Variety Of Plastic Die molding In Go4mould
Plastic Injection Molding China-FAQ
People think of China as a low-quality supplier. However, China is transforming, and the Go4 Custom Injection Moulding supplier is leading the way in high-quality products and efficient production. The GO4mould factory works 24 hours a day, three shifts a day, and our staff is happy to accept overtime, which enables us to complete projects quickly. With a closed-loop production system and proven technology, GO4mould’s prices are more competitive than those of other global injection moulding manufacturers and Chinese injection moulding companies.
We employ competent salespeople who speak fluent English and specialize in both sales and knowledge of the field. Understanding the technical part of the business is equally important for injection mould manufacturing projects. Most of our salespeople are good at CAD drawing, material selection, and mold-making processes; therefore, they can communicate their ideas to the engineers without problems.
While there are thousands of plastic materials available, some are better than others. Choosing the right plastic can affect both the moulding operation and the performance of the final product. GO4 China Mould Makers lists some of the best plastic injection moulding materials for you and where they can be used.
Acrylic: Used to create transparent parts. Examples of this include transparent walls, windows and lighting fixtures. As an alternative to glass, it can be used. Acrylic has high tensile strength, is scratch-resistant and weather-resistant.
Nylon (polyamide) is a very strong material that melts only at very high temperatures. It is resistant to chemicals and wears well. It is used in the production of mechanical parts such as bearings, gears, and bushings.
Polycarbonate: This very durable material is much stronger than acrylic. It can be used for optical discs.
Paraformaldehyde (POM) is used to manufacture automotive and mechanical parts, which are usually made of metal. The material is hard, tough, and strong. It is used to manufacture products such as ball bearings, tool handles, fasteners, and gears. Additionally, it is highly resistant to solvents.
Polystyrene (PS): Both General-Purpose Polystyrene (GPPS) and High-Impact Polystyrene (HIPS) can be used in the plastic injection moulding process. GPPS is transparent, while HIPS is opaque. This material can be used to make toolboxes and hard cases for power tool bodies.
Polyethylene (PE): This lightweight material is one of the most commonly used in plastic injection molding processes. It is known for its high elasticity, electrical insulation properties, and resilience. Although not particularly strong, it is ideal for making a wide range of bottles, waste bins, and plastic bags.
Polypropylene (PP): This material is commonly used in the food and packaging industries. It will not degrade even when washed in hot water. It is tough, flexible, and very durable.
Acrylonitrile butadiene styrene (ABS): This opaque material is tough and resistant to scratches, breaks, and tears. It is inexpensive and is often used for keyboards, telephone adapters, and plastic shields for wall sockets.
Thermoplastic polyurethane (TPU) is a soft, pliable, and strong material. It is used to manufacture products that require rubber-like elasticity, such as mobile phone covers, power tools, and sports equipment.
Thermoplastic rubber (TPR): This material is a mixture of plastic and rubber and, therefore, has both properties. It is used in products such as headphone cables and medical catheters.
Related reading: Injection Molding vs Compression Molding
The injection moulding process goes through six stages. These stages must be completed in sequence to determine the quality of the final product.
Stage 1: Closing the mould
This process begins with placing the final mould in the plastic injection moulding machine.
The mould is divided into two halves and attached to the platen (steel clamps). A hydraulically driven closing unit pushes the two halves together. As the molten plastic is injected into the mould, sufficient force is applied to ensure that the mould closes tightly.
Stage 2: Feeding
Once the machine is started, selected plastic or polymer pellets are fed into the hopper, a large container with an open bottom. The pellets or granules are moved from the hopper into the drum containing the heating mechanism. The pellets or granules can be fed into the hopper automatically or manually.
The reciprocating screw moves the plastic pellets slowly forward by a sliding and rotating motion. The reciprocating screw is usually hydraulically operated. As the material enters the grooves of the screw, it is heated by friction and using a large amount (10,000 to 30,000) of pressure and heat.
Once the pellets have melted, the melted plastic is quickly injected through the nozzle and fed into the cavity.
Stage 3: Holding pressure
Pressure build-up encapsulates and holds the molten plastic material within the mould. The holding pressure is always maintained to compensate for any material shrinkage.
Stage 4: Cooling and curing
At this point, the plastic is allowed to cool and harden. The molten plastic inside the mould begins to cool as soon as it comes into contact with the inner surface of the mould. As it cools, the plastic solidifies into the shape of the mould.
Stage 5: Mould opening
During the cooling period, the mould remains closed and cannot be opened. Plastics have different thermodynamic properties, which determine the cooling time. Once it has hardened, the platen opens.
Stage 6: Demoulding
The product is removed from the mould by pushing it out of the ejector mechanism. Sometimes, a release agent is sprayed onto the inner surface of the cavity of the mould to aid easy release before the plastic is injected. Once the product has been removed, the mould can be clamped again for the next injection.
The whole cycle may take between 2 seconds and 2 minutes. This process can be repeated as often as necessary to ensure a consistently high-quality mould.
When considering the production of a part or product through the plastic injection moulding process, consider the following points.
- Financial considerations
Entry cost: While plastic injection moulding is cost-effective, remember that it requires a significant initial investment.
Production quantities: Determine the number of pieces that plastic injection moulding will be most cost-effective for you to produce. In addition, determine the number of parts that can be produced for you to break even on your investment. Consider all costs, including those associated with design, testing, production, assembly, marketing, distribution, and expected sales price. Ensure you make a good profit.
- Design considerations
Part design: Ensure that your final design considers the injection moulding process. By simplifying the shape, geometry, and number of parts, you can create a high-quality product more successfully.
Mould design: Ensure mold design does not lead to a defective product.
- Production considerations
Cycle times: Reduce process/cycle times as much as possible. Carefully designed tools and excellent hot runner technology can considerably reduce times. Even small changes that may seem unnecessary at first can reduce cycle times and save you a lot of money when producing thousands of parts.
Assembly: Minimise assembly through a well-thought-out design.
Welcome to Go4mould – the best and most professional plastic mould manufacturer in China. We provide you with a wide range of high quality moulds.
Professional quotation
Our quotations are based on product samples or drawing requirements. All profits are guaranteed to be no more than 10% of the cost. Get the best efficiency for your project.
Mould design
GO4mould offers free mould design for injection moulds. Our design team has extensive experience in mould design to ensure that our customers’ moulds have the best design and functionality.

Plastic Injection Molding China Design
Production Machining
We have over 15 years of experience in plastic mould manufacturing. In order to provide high quality injection moulds, we are equipped with a range of advanced equipment.
Rigorous testing
All mould processes are professionally tested through CNC, assembly and mould trial to ensure high quality and long life of the injection moulds.
Fast delivery
After all inspections are completed, we clean and pack the injection moulds, collate all mould data and report back to you, and then ship them out as soon as possible.

Plastic Injection Molding China
Careful service
We offer our customers a 3-year free plastic mould repair service. If you have any questions in the field of injection moulding, please feel free to contact us.
We provide after-sales service to ensure our customers have the best possible user experience. Each product is warranted for 5 years or a specified life span. If the failure is not caused by negligent use, we offer replacement parts for repair within the warranty period. Our technicians will respond to injection mould repair questions within 24 hours. We never stop improving and strive to be your best China mould manufacturer and China mould making supplier.
GO4 Mould, a mould manufacturer in China, designs the mould as the first step in manufacturing a product through the injection moulding process. This takes time, skill, and precision.GO4’s design engineers undertake this process. Various computerized versions of the mold design are created. Each version includes patterns, logos, finishes, graphics, and layered textures.
Once the final design has been determined, moulds are made to the exact dimensions of the final product. Steel moulds withstand the heat and pressure associated with mass production.
Moulds can consist of a single cavity or multiple cavities. In multi-cavity moulds, each cavity can be identical or unique, forming multiple shapes or parts in a single cycle.
Moulds are made from strong, durable, and heat-resistant materials such as stainless steel and aluminium. Although aluminium moulds are cost-effective, they are not usually suitable for producing large quantities of products or parts with narrow dimensional tolerances.
Yes, we do. Before mass-producing products using the plastic injection moulding method, we test the machines used for this process to ensure that all the individual components are in working order and functioning properly. Moulds and polymer compounds are also tested to ensure they are suitable.
A pre-production mould is used to ensure that it is perfect. When it is not, adjustments are made. Testing cannot be skipped since the quality of the final product depends on it.
How Our Customers Have Described Us
Would you like to know more about us?
You can count on a professional Plastic Injection Molding China partner to deliver high quality, cost-effective and timely manufacturing services. Go4mold is the first step to success.
Plastic Injection Molding China——GO4mould
GO4 plastic mold manufacturer is committed to providing high-quality, tight-tolerance plastic injection molds.
We are now a key player in plastic molding in China and a foundry mold manufacturer of high-quality injection molds.
We recognize that our molds’ performance and quality will strongly impact our customers’ performance and reputation.
Subsequently, we seek to continually improve our performance to provide useful, risk-free, and on-time mold tools that always meet your performance and delivery requirements, our win-win business partner.

Plastic Injection Molding China
What Are The Characteristics Of Injection Moulding In China Compared To Other Plastic Mouldings?
People think of China as a low-quality supplier. However, China is transforming, and companies such as GO4 Custom Injection Moulding Suppliers are leading the way in terms of high-quality products and efficient production. The GO4mould factory works 24 hours a day, three shifts a day, and our staff are happy to accept overtime, which enables us to complete projects quickly. With a closed-loop production system and proven technology, GO4mould’s prices are more competitive than other global injection moulding manufacturers and other Chinese injection moulding companies.
High Precision Plastic Injection Moulding Sizes
The table below shows the sizes of Chinese injection moulded parts we produce. If you require larger sizes, GO4, a trusted Chinese precision injection moulding manufacturer, can also help you achieve them cheaply.
| Size | Metric system | Inches |
| Length | 2500 | 98.4 |
| Width | 2000 | 78.7 |
| Height | 1500 | 59 |
Manufacture of additives for custom injection moulding of practical plastics
| Name | Description |
| UV absorbers | It absorbs UV radiation and slows down the degradation of the material when used outdoors. |
| Flame retardants | It prevents fire and inhibits its spread. |
| Plasticizers | It increases flexibility and promotes plasticity, reducing the brittleness of the material. |
| Dyes | Used to color plastics. |
| Carbon fibre | Increases materials’ strength, toughness, and stiffness at the expense of making them more brittle. |
| Glass fibres | It increases a material’s strength, toughness, and stiffness at the expense of making it more brittle. It is more flexible than carbon fiber. |
Surface treatment for cheap/low-cost injection moulding services
| Name | Description |
| Smooth | The moulds are smoothed and then polished with a diamond polish, which gives the parts a mirror-like finish. |
| Semi-glossy | The moulds are sanded with fine sandpaper to give the parts a good surface finish. |
| Matte | Moulds are smoothed using fine stone powder to remove all machining marks. |
| Textured finishes | Moulds are smoothed with fine stone powder and then sandblasted to create a textured surface. |
| Finished | Moulds are finished at the discretion of the machinist. Tool marks may be visible. |
What makes us better than other Chinese injection mould manufacturers?
1. Chinese complete equipment mould manufacturer
Innovation is guaranteed at the heart of GO4mould China’s operations. To this end, GO4mould China has a complete range of manufacturing machinery and equipment to ensure that the quality of the moulds, plastic moulded products, and die castings it produces meets world-class requirements.
GO4 has high-speed FUNAC CNC machines (imported directly from Japan) with 0.005mm tolerances, fully automatic CMM measuring machines for high tolerance requirements and CHARMILLES EDM.
The high-precision CNC and CMM machines work in tandem to ensure accuracy and increase production efficiency. In addition, at GO4 China Mould Manufacturer, we have the advanced software UG for designing full 3D mould designs, helping to reduce errors and increase customer efficiency.
2. Quality Assurance
With quality assurance, GO4 constantly reviews all its China mould manufacturing processes to assess potential errors that could affect quality.
GO4 China injection mould manufacturers will test the moulds several times to check for defects and ensure high quality, durability, and long life in mass production.
3. Customised services
As a professional plastic mould company in China, GO4 China Mould Factory specialises in industrial products, automotive parts, digital products, food packaging parts and consumer products, which means they can customise moulded parts to suit your requirements.
Whether you are in the construction mould/ moulded products, food and cosmetic moulds or moulded products, health or automotive moulds and moulded products, 2k injection moulds/ moulds, secondary moulds, clear injection moulds/ moulds, digital moulds and other industries… GO4 China Injection Moulding Factory Customized to meet your needs.
4. Affordable prices
There is nothing better than a high-quality product at a reasonable price. With Injection Mould China’s competitive pricing strategy, GO4 China Mould Manufacturer offers all moulds and products at very affordable prices to meet the various needs of our customers. Mold prices as low as US$500 (based on part design and size).
Without compromising on quality, you can rest assured that you are getting your money’s worth, and GO4 China makes injection molds that will never reduce your project’s budget. They never do this to any of our customers.
5. Professional Service Team
GO4 China injection mould manufacturers pride themselves on having experienced and well-trained personnel. the GO4 team consists of sales, design, production and quality assurance departments with the technical knowledge and expertise to understand the standards and requirements of custom moulds and plastic moulded parts. Driven by integrity and honesty, the team works together to ensure that only the best injection molding service is provided to our customers.
6. Plastic injection molding China service
GO4 China Plastic Moulding is committed to responding positively to the needs and expectations of our customers.GO4 has a team of professional communicators and fluent English speakers dedicated to resolving any customer issues at any stage of your interaction with us.
At Go4 Mould, we aim to be “customer-friendly, quality-focused, and innovative.” We hope that we can build happy relationships with business people from all over the world. Chinese molds will be sold to Europe, America, Australia, Hong Kong, Nairobi, Dominica, the Philippines, and other parts of the world. As more and more Chinese products are going into the world, our international business is developing rapidly, and our economic indicators are increasing significantly yearly. We are confident enough to provide you with better products and services because we are becoming stronger, more professional, and more experienced domestically and internationally.
















