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Top 10 Mold Manufacturers in China

Injection Mold company

Chinese Top 10 Mold Manufacturers

Molding is a process of shaping liquid resins or malleable raw materials by pouring them into a mold. China’s mold manufacturers significantly influence the production of numerous indispensable molded products. However, selecting the right mold manufacturer is not an easy task and somehow agitating because there are many options in China. To make your search easier, we have made a list of the top 10 mold manufacturers in China. Therefore, you will not have to spend your time aimlessly surfing the web.

Moreover, we have seen a rising trend in 3D printing in India. Although it is not yet a significant industry in India, it is showing signs of growth in the near future. This article covers information about plastic mold manufacturers in China, their key products, and so much more to learn about. 

Below are listed the top 10 mold factories in China that could offer you custom plastic injection molds and molding services, especially a plastic mold factory in China named Dongguan Sincere Tech Co., Ltd., which is an all-in-one services company in China.

Top 10 mold manufacturers in China

Let’s explore the top 10 mold manufacturers in china.

1. Dongguan Sincere Tech Co., Ltd

China mold company

Year Established: 2015

Location: GuangDong Province: Dongguan city.

Industry Type: Plastic Injection Molding, Die Casting, Machining, and Surface Finish.

Sincere Tech has been in existence for over 19 years providing the best molds and parts at reasonable prices and high-quality standards. They have specialized in plastic injection molding which makes them set apart to fulfill various industry needs from aerospace, and medical, to consumer products.

Key Features:

Client Satisfaction: They value their customers by providing NDA agreements and great after-sale services to put clients’ satisfaction at the top.

Transparency: Their valued customers get raw materials descriptions, and product test results for more confidence in dealing with each other. Also, you will get a competitive price budget as per your needs within your constrained budget.

Products & Services:

  • Molds for electronics, household appliances, storage, hair beauty tools, medical devices, and more.
  • Furniture, baby products, and automotive parts templates.
  • Plastic injection molding and 3D printing and insert molding.
  • Other services include CNC machining, over-molding, aluminum die casting, plastic product design, and prototype manufacturing.

Dongguan Sincere Tech Co. Ltd is a one of the top 10 mold manufacturers in China that provides high-standard quality solutions in the plastic molding industry with quality and customer satisfaction.

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2. Bluestar Technology Group Co., Ltd.

mold manufactuer China

Year Established: 2003

Location: Guangdong, China

Industry Type: Automotive Parts Production, Research and Development, and Tooling.

Bluestar Technology Group Co., Ltd. is an injection mold China company that has been in the auto parts manufacturing industry for more than two decades. Bluestar has a large workforce of over 800 employees and is a national and municipal high-tech enterprise with ISO9001, ISO14001, and IATF16969 certifications. The company is focused on offering the best auto parts and complete molding services for the automotive industry.

Key Features:

Client Satisfaction: Bluestar is committed to providing the best products to customers through its strong R&D and manufacturing systems.

Transparency: The company provides detailed information about the raw materials and test results of the products to gain the trust of their customers. They also offer competitive pricing that is flexible to meet the budget needs of the customers.

Products & Services:

  • Auto Parts Production: Comprises vehicle headlights, interior trim components, double shot molding products (2K products), and air treatment systems.
  • R&D Center: Engaged in the design and manufacture of auto accessories, parts, and systems.
  • Manufacturing Services: Machining technology for precision auto parts injection molding.

Bluestar Technology Group Co., Ltd. is one of the top 10 plastic injection molding companies in China that provides quality solutions in the auto parts manufacturing industry and is dedicated to quality, innovation, and customer satisfaction.

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3. TEC Mold Holdings Limited

mold manufacturers in China

Company Name: TEC Mold Holdings Limited.

Year Established: 2000

Location: Shenzhen and Dongguan, Guangdong Province, China.

Industry Type: Injection Molding Tooling, Plastic Injection Molding, Secondary Operations.

TEC Mold Holdings Limited was founded in 2000 and is a Mold factory in China that offers a full range of manufacturing services. TEC Mold has become a reliable “one-stop manufacturing service” provider with a manufacturing area of 50,000㎡ and a team of more than 650 employees. Certified to ISO 9001:ISO/TS16949:2009 standards, the company is recognized as a high-tech enterprise in China.

Key Features:

Extensive Facilities: TEC Mold has four factories in Shenzhen and Dongguan with four divisions: Precision Mold Shop, Large Mold Shop, and Injection Molding with Secondary Operations.

Quality Assurance: TEC Mold has separate teams for Quality, Project Management, Design, Engineering, and Manufacturing to ensure quality in all its processes.

Diverse Market Presence: The company serves different sectors including Automotive, Medical and Healthcare, Aerospace, Electronics, Household, Telecommunication, Construction, and Security.

Products & Services:

  • Plastic Injection Tooling: Precision tooling for automotive parts, medical devices, household appliances, aircraft parts, and other products.
  • Injection Molding: High-quality injection molding services for the industry.
  • Secondary Operations: Other services such as spray painting, UV coating, assembly, and so on.

TEC Mold Holdings Limited is a Chinese mold company that is dedicated to providing high-quality manufacturing services, innovation, and customer satisfaction in various industries.

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4. Jabil One

injection mold china

Company Name: Jabil One

Year Established: 1966

Location: International operations with more than 100 sites in over 20 countries.

Industry Type: Injection mold Manufacturing Solutions, Engineering, Supply Chain Management.

Jabil One is a global manufacturing solutions provider established in 1966 and currently present in over 100 locations across the world. Jabil One is a mold company in China that has been in operation for more than 50 years and has a team of professionals who are committed to providing engineering, manufacturing, and supply chain solutions to its clients.

Key Features:

1. Global Reach: Jabil One has a global presence with a wide range of solutions that are scalable and tailored to the needs of clients in various industries.

2. Comprehensive Expertise: The company integrates technical skills, design skills, supply chain knowledge, and global product management to offer the best solutions for the world’s top brands.

3. Environmental Responsibility: Jabil One is committed to creating sustainable processes that are environmentally friendly and responsible.

4. Advancements & Excellence: Jabil One aims to make anything possible and everything better in the future world.

Product & Service

  • Advanced Assembly Solutions: The miniaturization of electronics and the convergence of complex technologies.
  • Circular Economy Initiatives: Sustainable materials, modular design, and supplier collaboration for environmentally sustainable products.
  • End-to-end Manufacturing: Offering end-to-end manufacturing services for sectors such as automotive, healthcare, consumer electronics, and others.

Jabil One is a global plastic injection molding manufacturing solutions provider that works with the world’s most innovative companies to achieve success, drive innovation, and make a difference in the lives of people and the planet. Tehy have a mold facotry in China and Europe.

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5. DongGuan Wellmei Industrial Co. , Ltd.

China mold company

Year Established: 1988

Location: Dongguan City, Guangdong Province, China.

 Industry Type: Plastic Mold Injection, Plastic Products Manufacturing, Surface Treatment, Assembly, and more.

Wellmei Industrial Co., Ltd. has been a leading manufacturer of plastic mold injection for over 30 years. Established in 1988, we have developed into a professional manufacturer of plastic mold, plastic products, surface treatment, assembly, and other related services. We have established a reputation for quality and customer service in the market.

Key Features:

  • Quality Commitment: Wellmei is committed to providing quality products and services through quality assurance and quality improvement in production.
  • Transparent Operations: We are committed to transparency and disclose information about the source of raw materials, product testing, and competitive pricing to build customer confidence.
  • Diverse Products and Services: Our products include a wide variety of plastic products like auto parts, medical devices, home appliances, OA devices, mobile communication terminals, and so on. We also offer plastic mold manufacturing, surface treatment, assembly, and other services.

Products & Services:

  • Plastic Mold Manufacturing: Specializing in different types of molds like E-mold, 2Kmold, and IML mold.
  • Plastic Products Molding: Injection molding for automotive, medical, consumer electronics, and other industries.
  • Surface Printing and Coating: Surface treatments: Aesthetic and functional improvements to products.
  • Assembly: Offering complete assembly services for finished products or semi-finished products.

DongGuan Wellmei Industrial Co., Ltd. is dedicated top 10 injection mold manufacturers in China to providing the best solutions, quality, and services in the plastic mold injection industry.

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6. Richfields Corporation

China mold company

Year Established: 2001

Location: Dongguan City, Guangdong Province.

Industry: Injection Mold Manufacturing

Awards and Certifications: ISO/TS 16949/2009, GMP Certified.

Richfields Corporation is a well-known mold factory in China that creates molds of the best quality and at an affordable price. They employ cutting-edge technology and with over 30 years of experience, they are incomparable in their professionalism and inventiveness. The strategic position and customer-oriented approach of these brands are the main reasons why they are selected by most leading companies across the globe.

Richfields exports to countries such as France, Germany, the USA, the UK, Brazil, and others. They are not limited to just plastic injection mold making, they also offer a range of additional services such as hot runner and cold runner molds, over molds, and rubber molds, assembly, among others. Their expertise spans from precision plastic injection molding to gas-assist injection molding and the production of large safety products such as hooks, edge covers, door stoppers, straps, and cord winders.

If you are looking for mold factory in China who also have mold manufacturers in the world, then you may contact them for a quote.

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7. Huizhou Djmolding

China mold company

Year Established: 2010

Location: In the city of Huizhou, Guangdong Province, China.

Industry: Injection Molding Manufacturer

Awards and Certifications: ISO 9001:2008 Standards

Huizhou Djmolding Co.Ltd is one of the most professional plastic mold factories in China, which is the main business of our company. They are famous for providing best-in-class molds using advanced cutting-edge machines and technologies that guarantee the customer’s high trustworthiness.

Services & Products Offered:

  • Rapid prototyping services and prototype injection molding are the most cost-effective methods for finalizing the design and making it ready for mass production.
  • Automotive injection molding
  • CNC machining and milling services, which are highly precise.
  • old and die-making.
  • Plastic molding manufacturing
  • Injection molding tooling and injection blow molding by using advanced technologies.
  • Home appliance molds
  • Injection mold design and manufacturing are among the leading services offered by our company.
  • Customized plastic injection molding.
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8. SINO MOULD

injection mold china

Year Established: 1999

Location: The Huangyan Taizhou, Zhejiang Province, China.

Industry: Plastics Injection Mold Manufacturing Process, Atomotive Injection molds

SINO MOULD is a plastic injection mold manufacturer in China that has a global reputation and supplies products across countries such as the UK, USA, France, and Spain. They claim to ensure 100% customer satisfaction by providing guarantee and warranty services, and also by delivering quality molds at low prices and within a short time period.

Services & Products Offered:

  • Home and household molds and home appliance molds.
  • The molds and molds of the packaging and high precision are required.
  • Industrial molds like for example refrigerator molds and drippers.
  • The dies for the pipe fitting connector and thin wall container shall be machined.
  • Medical and mold of components and paint molds.
  • The manufacture of automobile molds, crate molds, and air conditioner plastic injection molds.

If you are looking for mold manufacturers in China that offers automtoive injection molds with big size, you could contact them for a quote.

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9. Sakura Tech

injection mold china

Year Founded: 1995

Location: Shanghai

Company Type: Manufacturing

Key Products: Injection Molds

Sakura Tech, founded in 1995, has become a top producer of plastic moldings. Their specialty covers processes like overmolding, rotational molding, and compact molding among others. They are popular for providing top-quality and durable interiors to exterior parts of automobiles, and aircraft. The company is headed by a team of talented designers and engineers who are known to be responsible for such legendary products.

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10. TK Group(Holdings) Limited

injection mold china

Year Founded: 1983

Location: Shenzhen, Suzhou,  Huizhou, Vietnam  and Germany

Company Type: Manufacturing

Key Products: Injection Molds, custom plastic injection molding, high precision injection molds, medical precision injection molds.

TK was established in 1983 in Hong Kong. After 40 years of development, TK Group now is a well-known enterprise in plastic injection and molds making. TK was successfully listed on the main board of Hong Kong Stock Exchange in 2013, stock code: 02283. An independent market research company IPSOS reported that the TK’s plastic mold business revenue was ranking No 1 in the MT3 level suppliers in China.

TK is a leading plastic mold and injection molding company in the China, which serves industries like consumer appliances, automotive, electronics, and others. The adoption of the latest manufacturing technology in automation processes has greatly contributed to their enduring success in the face of the growing competition from newcomers in the market.

If you are looking for mold manufacturers in China that offers high precision injection mold, and medical precision mold, you may contact them to quote for you.

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End Notes

The Chinese industrial landscape is a busy one and it is easy to get lost in the numerous industries to find the best that suits your intended requirements. To make the search easier, we have collected the necessary information about injection mold manufacturers in china and pointed out the top mold manufacturing companies in the area.

Plasticmol.net is the right choice and serves as a one-stop solution to meet all your molding needs because of providing high-quality products at competitive prices. We have a transparent pricing policy. Discover our wide range of products and services from wider prospects, which are conveniently available in the same place.

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Thermoplastic molding Ultrasonic Welding

Thermoplastic molding Ultrasonic Welding Process, Fast, Computer-Controlled Accuracy, Chemical / Adhesive Free, Low Cost, High Speed

SINCERE TECH is an injection mold china company that provides a variety of services to the world, including custom plastic mold making, custom injection molding service, printing, silk-screen, and molding ultrasonic Welding, one step to complete your project. Molding Ultrasonic Welding is used to bond two pieces of plastic together.

Molding Ultrasonic welding is probably the most commonly used thermoplastic molding welding process because it is very fast (fractions to a few seconds) and usually produces welds that are relatively free of flash. In addition, Thermoplastic molding ultrasonic welding is suitable for high volume production.

Molding Ultrasonic Welding: A Brief Explanation

molding Ultrasonic welding uses the potential energy within the plastic itself, converting it to heat and sound. In plastic ultrasonic welding the parts are vibrated toward and away from each other. This heats and softens them. The continued motion heats and softens the plastics, then mixes the softened surfaces of the plastic together. This forms both a physical, and if the plastics are selected correctly, a chemical bond between the parts.

A sonic horn oscillates vertically, contacting the plastic part at a variable distance from the projection point, depending on the application, delivering the energy where it’s needed. The part on the other side of the joint area rests on an energy-dampening anvil, ensuring the sonic energy remains in the weld zone.

Tongue & groove joint design and location is very important in ultrasonic welding. Interference, or shear types of joints, involve welding a slightly larger part into a smaller one. Shear joint designs are commonly used for semi-crystalline polymers, or when watertight seals or high joint strengths are needed.

Molding Ultrasonic Welding: Benefits & Advantages

Rapid development of the ultrasonic welding machine has occurred in the last ten years. Basic functions are now computer-controlle

d for greater accuracy and reliability, such as:

  • Weld energy
  • Collapse
  • Trigger force
  • Pressure

Ultrasonic welding of plastics has many advantages over other plastic-joining processes, including:

  • Lower cost – eliminates the costs of consumables, produces repeatable, error-free results
  • Higher speed – welding usually occurs in less than a second.
  • Cleaner process – no consumables required, less risk of contamination
  • Greater reliability – adaptable to clean-room environments as well as high-volume production situations

Unlike most other methods of plastics joining, ultrasonic welding uses no caustic chemicals and produces few fumes. The only restriction on welding plastics is that the parts must have relatively close melting points, or else one will melt completely before the other begins to soften.

Molding Ultrasonic Welding: Applications & Uses

Ultrasonic assembly is ideal for assembling all types of medical products, such as:

  • Filters
  • Instruments
  • Fluid vials
  • Masks
  • Surgical garments

Molding Ultrasonic welding has a wide variety of additional uses and applications, including:

  • Sealing containers and bags
  • Attaching plastic components
  • Inserting metal components into plastics (see Ultrasonic Insertion)
  • Corrugated containers – eliminates the need for staples or adhesives
  • Plastic Tubes and pumps – will not contaminate contents

SINCERE TECH provides a variety of value-added services, including Plastic mold Manufacturing, plastic molding service, Ultrasonic Insertion, to help complete your project. Ultrasonic insertion is used to bond metal and plastic parts together without the need for glues, adhesives or additional heating or processes.

When a metal part needs to be attached to a plastic part,conventional insertion methods include:

  • Mold the metal component into part during production
  • Glue the metal part to the plastic
  • Heat
    • Melt the plastic component at insertion point
    • Insert metal piece into molten area
    • Allow part to cool and solidify

Ultrasonic Insertion: Benefits and Applications

This technology is an alternative to gluing or heating. Ultrasonic Insertion of metal to plastic offers distinct advantages over other bonding processes. Although this process is similar to locally melting the area with another heat source, it has the advantages of::

  • Heating a far smaller area to lower temperatures

  • Reducing energy costs
  • Decreasing cooling time
  • Reducing the possibility of defects due to thermal effects

Ultrasonic insertion works by using the ultrasonic head to vibrate the metal component against the plastic one. The Welding Horn couples directly with either the insert or the thermoplastic part.  Ultrasonic vibrations heat and soften the plastic part, allowing the metal part to be inserted. As the plastic cools, a very strong bond is made.

Applications for ultrasonically inserted components include:

  • Threaded inserts or studs
  • Metallic webs or grills (speaker covers, etc.)
  • Permanent magnets
  • Electric contacts

If you have a project that need metal staping and plastic molding service and ultrasonic Insertion, you are welcome to send us, if your project needs molding Ultrasonic Welding servcie, contact us as well, we will quote your complete price for you.

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Silicone Injection Molding China

liquid silicone rubber molding

We are Silicone Injection Molding China company that offers plastic mold/molding service, rubber molds, Silicone Injection Molding, liquid silicone injection molding parts to the world, send us your drawing and we will quote you in 24 hours.

What is Silicone Injection molding

Silicone is a kind of environmentally friendly raw material, silicone material is loved by people with its various perfect properties. silicone injection molding part has the softness and poison-free properties so that widely used in industrial sealing and medical devices. Especially its working temperature: between minus 60 to 250 degrees no plastics company compare its advantages. Using silicone to seal metal or plastic parts to form some new properties and makes the product soft and hard. For example, the silicone overmolding kitchen Spatula is environmentally friendly and is loved by consumers. Silicone injection molding parts & plastics parts have very similar but have different processing.

silicone injection molding machines

silicone injection molding machines

To work with us is so easy, you only need to send us your drawing and your requirement, then your seat back and wait for the parts for testing until you approve the parts or molds, we will take all of the jobs for your from mold design, mold manufacturing, sampling, massive production, assembly, and delivery to gods directly to your storage housing, we have the best shipment agency that could save up 30% of shipment cost than others,

Silicone Injection molding services produce molded components made from silicone. Silicone rubber is a two-component, synthetic, flexible rubber-like material made from silicone elastomers that can be cured at room temperature into a solid elastomer used in molding. It is heat resistant, durable, and free of allergens or leaches able chemicals. Liquid silicone is similar to normal silicone but has different processing characteristics.

It is purchased as a two-part raw material with a grease-like viscosity.
Nowadays injection molding of liquid silicon rubber is becoming increasingly important. One reason for this is the increased performance requirements of the finished articles. In addition, more and more producers of rubber parts are seeing benefits in the high level of automation and productivity.

Various ways of liquid silicone injection molding

Molding processes used by providers of silicon molding services include cast molding, compression molding, dip molding, injection molding, reaction injection molding, rotational molding, and transfer molding.

Whereas in the cast molding process, the liquid material is poured into an open mold, in compression molding a slug of silicone is pressed between 2-heated mold halves. On the other hand dip molding is a process similar to hot-dip coating, in which the finished product is the fused plastisol stripped from the dipped mold. However, in injection molding, liquid silicone is forced into a cooled mold under tremendous pressure. In the Reaction Injection Molding (RIM) process two or more reactive chemicals are mixed at high speed as they are being injected into a mold. In rotational molding hollow molds filled with silicone material are secured to pipe-like spokes that extend from a central hub. In transfer molding, the two mold halves are clamped together and silicone is forced by pressure into the mold.

Why the preferred use of silicone rubber in injection molding

Silastic silicon rubber is a sheer material and so its viscosity depends on shear rate. As the shear rate rises the product becomes lower in viscosity. It is this effect that is very favorable for the injection molding process. At the beginning of the injection process, the injection speed profile should be programmed in such a way that the volume flow is high enough for the liquid silicon rubber-not to begin to vulcanize before the cavity is filled, in order to avoid the scorch of the material. Thus liquid silicon rubber is widely used for the process of injection molding due to its following characteristics:

  1. Solventless with low and versatile viscosity.
  2. Easy mixing and pigmentation
  3. Rapid processing compared to solvent dispersion and usually allows a complete coating to be applied in a single pass
  4. Prime less adhesion to glass and some other substrates.
  5. Meter mixed plastic liquid silicon rubber can be dip-coated or fed to a crosshead for supported extrusion coating.

Vulcanized silicone rubber products have the following characteristics:

(1) the property resistant to high and low temperature: with long-term use at 200 ℃and flexibility at -60 ℃;
(2) Electrical insulation property: silicone rubber affords excellent dielectric property which is much higher than the general organic especially under high temperature with dielectric strength almost independent of temperature in the range of 20-200 ℃.
(3) Excellent performances of weather resistance, ozone resistance and resistance to ultraviolet radiation without crack even after long-term outdoor use. It’s generally believed that the silicone rubber can be used outdoors for more than 20 years.
(4) Excellent property of permanent deformation under high-temperature compression.
(5) Excellences include good processing performance, easy to shape, etc.; a variety of products can be made by squeezing out hot air with methods of vulcanization molding, pattern molding, extending molding and so on.

With excellent performance and good technical and economic effect, silicone rubber products have a wide range of applications in various areas of aviation, aerospace, atomic energy, electrical implements, electronics, instrumentation, automobile, machinery, metallurgy, chemical industry, medical health, and daily life.

The application and characteristics of injection molded liquid silicone products:
They have excellent transparency, excellent tear strength, good elasticity, excellent thermal stability and weather resistance, yellowing resistance, heat aging resistance and is mainly used in the cake mold, infant pacifiers, medical catheters, injection molding craft and so on.

Advantages working with silicone injection molding China

Silicon rubber molding has come a long way over the past two decades. From its roots in a few specialty applications where premium physical properties counted more than the premium price, this thermoset carved out a small but solid niche in the medical and automotive fields. Now, among the proliferation of new applications, that niche has begun to burst at the seams.

If you are going to running your business with silicone injection molding or rubber molding? Of any or your new project that needs silicone injection molding parts, we suggest you find a silicone injection molding china company to cooperate your business, when you work with a Chinese company, you will have some advantages for your new model and your business.

Number one,

When you work with silicone injection molding china suppliers, you will have a very competitive price, so you could save your budget on your new model, especially if you are the first time running your one business, this will be one the most important thing to decide if your business will be going smoothly or not.

The advantages number two,

If you choose an injection mold china supplier for your plastic molding parts, silicone rubber molding parts, you will be moving faster than your local supplier, all of the Chinese silicone molding companies are hardworking, fast delivery time, this will save your time and work your project faster on the market, when you put some money into the project, faster will be faster to gain some profits from your project.

Of course, there are some disadvantages when you work with a Chinese silicone molding company, for example, the language. But here you do not need to worry anymore, in our factory we have a professional technical manager who speaks fluent English that will solve all of your issues, you could contact us by email or phone.

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Custom Injection Molding

injection molding wall thickness

What is Custom injection molding?

The first question that comes to mind on hearing is what is Custom injection molding?

Custom injection molding refers to the making of plastic parts for specific applications i.e. customizing the plastic injection components as per the customer’s requirements.

Customized injection molding parts

Injection molding is a process in which plastic pellets are melted and injected under high pressure into a mold cavity. The molded parts are then ejected, and the process repeated. The finished products can then be used as is, or as a component of other products. To do so requires an injection molding machine and tooling (often called a mold or die). The molding machine consists of a clamping unit to open and close the mold automatically, and an injection unit to heat and inject the material into the closed mold.

Injection molding utilizes very high pressures and typically the machine is hydraulic or, increasingly, electric. Tooling for production injection molding applications must be able to survive under high pressure and is made from steel or aluminum. The potential high cost of tooling often drives the economics of a plastic molding application. Injection molding is an effective way to make custom parts.

Bascially, most of injection molding parts are customized injection mold, because every single design need its own custom injection mold, onless you buy the ready parts from the market, otherwise you need to make your own custom injection mold for your customized design.

Custom Injection Molding

Injection Molding Process：Plastic Processing, Make Parts From Plastic Material

Finding the right source for your custom injection molding thermoplastic parts is as easy as selecting DONGGUAN SINCERE TECH CO.LTD. With SINERE TECH, you are guaranteed professional quality assurance standards, the latest in technological equipment, and innovative, cost-efficient manufacturing techniques.

Injection Molding Process: A Brief Description

There are three main components in the injection molding process. The injection apparatus itself which melts and then transmits the plastic, the mold, which is custom designed, and clamping to provide controlled pressure. The plastic mold is a specially designed tool with a base and one or more cavities that will eventually be filled with resin. The injection unit melts the plastic granules and then injects them into the mold by either a reciprocating screw or a ram injector.

The reciprocating screw offers the ability to inject smaller amounts of resin in the total shots, which is better for producing smaller parts. After injection, the mold is cooled constantly until the resin reaches a temperature that allows it to solidify.

Complications with Injection Molding

Injection molding complications are few and can be easily avoided by paying close attention to the design of the plastic mold, the process itself and caring for your equipment. Parts can be burned or scorched when the temperature is too high, which is sometimes caused by the length of the cycle time which may be too long. This causes the resin to overheat. Warping of parts happens when there is an uneven surface temperature for the molds.

Surface imperfections (commonly known as bubbles) happen when the melt temperature is too high, which causes the resin to break down and produce gas. This can also be caused by moisture in the resin. Another complication is incomplete cavity filling, which occurs when there isn’t enough resin released into the mold or if the injection speed is too slow, which results in the resin freezing.

Running a Custom Injection Molding Business

Custom plastic injection molding business is a competitive business and to survive you should find your niche market. Most custom molders in business today have found a niche. Through experience, the molder became good at molding a particular type of part or at molding a particular kind of material, or in working in a specific segment of the marketplace. In other words, he acquired an expertise and stuck with it.

Thermoplastic injection molding is the most widely used of all plastic processing methods. Injection molding is a manufacturing technique for making parts from plastic material. Molten plastic is injected at high pressure into a mold, which is the inverse of the desired shape.

Thermoplastics are those which, once formed, can be heated and reformed over and over again.

PP injection molding

PP injection molding

The mold is made from metal, usually either steel or aluminum, and precision-machined to form the features of the desired part. SINCERE TECH provides the highest quality economical plastic molds available today, with less moving parts to reduce maintenance and repair costs.

The injection molding machine reduces pelletized resins and coloring agents into a hot liquid. This slurry, or “melt”, is forced into a cooled mold under tremendous pressure. After the material solidifies, the mold is unclamped and a finished part is ejected.

An injection-molding machine performs the entire process of plastic molding.  These machines serve to both heat the plastic material and form it.  Using different molds the shape of the produced components may be changed.

Injection molding machines have two basic parts, the injection unit, which melts the plastic and then injects or moves it into the mold, and the clamping unit, which holds the mold shut during filling. The unit clamps the mold in a closed position during injection, opens the mold after cooling, and ejects the finished part.

Custom Injection Molded Plastic Parts:

High-Quality Parts, Guaranteed to Specification, Extended Warranty, Retain Mold Integrity, Advanced Design, Quality Assurance

Finding the right source for your custom molded plastic products is as easy as selecting https://plasticmold.net/. One of top 10 mold manufacturers in China that services custom injection mold and plastic molded parts to the world.

With SINCERE TECH, you are guaranteed professional quality assurance standards, the latest in technological equipment, and innovative, cost-efficient manufacturing techniques.

Custom Injection Molding Parts: SINCERE TECCH’s Advantage

The injection molding process offers the lowest piece prices available, but tooling (plastic mold making) prices are generally the highest.  That is why we need to make all of the molds in-house to create top quality plastic mold and the lowest price for our customers, our custom mold cost as low as $500. contact to get price for your own custom plastic injection molding.

And they stand behind their word. They offer their customers the option of joining their Extended Warranty Program guaranteeing the plastic mold we design and builds for you will retain its integrity throughout a specific number of cycles, if we store the molds for you we will do the free mold maintenance for you.

Custom Injection Molding

injection molded plastic parts

For more information, see the home page.

Customized Injection Molded Applications

Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars. It is the most common method of production, with some commonly made items including bottle caps and outdoor furniture.

We have the ability to produce a wide variety of custom injection molding parts and components, for industries of all types, including:

  • Connectors
  • Wire Shields
  • Vials
  • Cases
  • Switches
  • Housings
  • Face Plates
  • Toys
  • Bezels
  • Push Buttons
  • Knobs
  • Light Pipes
  • Shields
  • Computer Peripherals
  • Phone Parts
  • Gears
  • Typewriter Parts
  • Window Lift Parts
  • Fuse Blocks
  • Wedges
  • Trim Plates
  • DVD Brackets
  • Faucet Extrusions
  • A / C Vents
  • Gear Shift Knobs
  • Tail Lamp Sockets
  • Blood Testers
  • Boat Parts
  • Name Plates
  • Buckles
  • Bottle Ties
  • Component Boxes
  • Spools
  • Bobbins
  • Seat Belt Parts
  • Spacers
  • Lenses
  • Vents
  • Clips
  • Flower Pot Bases
  • Actuators
  • Radiator Tops
  • Junction
  • Boxes
  • Motor Housings
  • Key Fobs
  • Cosmetic Packaging

To provide the best process for your project, you are welcome to send us email, we will offer you the best solution for your custom plastic injection molding  project.

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Plastic Mold China

plastic mold china

Plastic Mold China is a major supplier of custom plastic molds due to its relatively low labor costs and strong manufacturing infrastructure. Many global companies source their plastic molding needs from China, taking advantage of the country’s capabilities in mold design, engineering, and production.

Mold-produced gifts are of vital value throughout a wide variety of industries. Bringing on a China mold maker can simplify the process for all of the companies in the world. Plastic mold Manufacturers in China is a topic that has piqued the interest of major companies.  However, when businesses aim to compete in their respective markets, they must consider the fundamentals of the method itself.

Plastic Mold China

Why you should use plastic mold China service?

There are several reasons why companies choose to use the Plastic Mold China service:

  1. Cost-effective: Labor costs in China are lower compared to other countries, making plastic molding services more affordable. This results in significant cost savings for companies that source their plastic molding needs from China.
  2. Experienced workforce: China boasts a vast pool of skilled and experienced workers, particularly in the plastic mold industry. The experienced workforce guarantees the production of plastic molds that meet the highest quality and precision standards.
  3. Advanced technology: Chinese mold manufacturers have access to and invest in the latest technology and equipment, including computer-aided design (CAD) and computer-aided manufacturing (CAM) systems. This allows them to produce high-quality molds with intricate designs and precise dimensions.
  4. Large production capacity: China is one of the largest producers of plastic molds in the world, with the ability to handle large-scale production runs. This means that companies can meet their high-volume plastic molding needs in a timely and efficient manner.
  5. Strategic location: China is a global manufacturing hub, and its proximity to other Asian countries makes it an ideal location for companies looking to source their plastic molding needs. This also allows for simple and efficient transportation of finished products to other markets.
  6. Quality control: Many Chinese mold companies have strict quality control processes in place, ensuring that the finished products meet the highest standards of quality. This helps companies ensure that they receive consistent, high-quality plastic molds that meet their specific requirements.

The combination of cost-effectiveness, experienced workforce, advanced technology, large production capacity, strategic location, and quality control makes plastic molding services in China a cost-effective and efficient solution for companies looking to produce plastic parts at scale.

China mold company

These factors make the Plastic Mold China service a cost-effective and efficient solution for companies looking to produce plastic parts at scale.

Sincere Tech is a China plastic injection molding company. We offer custom plastic mold and injection molded products to America, Europe, and the world. If you have a project in hand that needs plastic mold China companies to help you, simply send us your part design or sample pictures, and we will send you the best price and solutions for your project.

We guarantee we will never copy or share your data with any other third parties. We can sign an NDA (non-disclosure agreement) contract to protect your project.

Plastic injection molding is one of the emergent commodities available on the market. The generation has the facility to create merchandise that may be difficult to create. To sculpt molds correctly, machines must be optimized.

China mold manufacturing companies are currently working with a wide array of industries the world over.  This has helped China mold makers establish themselves as a global standard. Engaging with those outside industries will be a highly effective strategy for expanding the current supply line.

Some industrial owners are interested in purchasing a variety of custom plastic products from Chinese plastic mold companies. These mold makers typically specialize in manufacturing various plastic components.

Knowledge within the industry could help piece these together. Some business owners are capable of assembling these items independently. Others might want to hire a workforce to regulate this process from beginning to end.

Plastic Mold China has created a very powerful variable for the bottom line that companies need to understand. Many people are eager to follow the blueprints these manufacturers create.

They’re going to be keen to show off their manufacturing procedure when they sign up for a freelance deal. Those deals will usually remain for a time frame, giving owners a chance to evaluate the process itself.

The mold manufacturing industry is capable of handling certain tasks exclusively. A few mold manufacturing companies in China offer exclusive deals to attract business owners. Viewing a gallery of projects will give customers a chance to understand what they’re dealing with.

The injection plastic mold industry in China has been instrumental in helping some overseas companies reinvent themselves. For instance, if you have been conducting market research on a new project for a year or more, you may discover that it has the potential to be a significant global market.

Once your design and prototype testing are complete, you should seek a contract manufacturer to produce your new model. While they may have numerous components to source, your first step should be to identify a plastic mold company and inquire about their assembly service offerings.

Sincere Tech is one of the top 10 mold manufacturers in China. We offer custom plastic mold/molding service, die casting parts service, painting, chrome, spray, and assembly—all in one service here to support you.

Plastic mold manufacturer

The advantages of choosing Sincere Tech as your China Plastic mold Maker

Sincere Tech supplies many kinds of injection molds, injection molding parts, plastic materials, and several plastic molding technologies based on the customer’s requirements.  The R&D department takes the responsibility of analyzing and designing the plastic parts according to the needs of the clients. The project department of the company will perform the foreseen inspection of plastic parts moldings structure, process, and related parts situation. The analysis is also done by the professionals to determine whether the moldings are manufactured according to the design.

Sincere Tech will prepare a professional mold flow analysis report for all molds prior to manufacturing, which will include temperature control, gate assignment, cooling time, and an analysis of the injection process, all of which will enhance the mold design.

The project manager is responsible for the outline process, precision machining, rough machining, machine process, assembly inspection, colliding, and assembly and molding tests. The project manager conducts a molding test to verify the dimensions of the injection molding parts and their alignment with the corresponding parts. The company’s Quality Control (QC) department will inspect the plastic parts mold, focusing on the product size, injection process, appearance, and physical performance.

Sincere Tech will measure all dimensions using a CMM machine, and will also conduct numerous tests to ensure the product can withstand pressure, tensile strength, impulse loading, temperature resistance, and impact resistance. The company applies its abundant experience in producing plastic part moldings to ensure the customers receive products of superior quality.

We subject the plastic parts to various surface treatments to ensure they have an excellent shape that aligns with the customers’ needs. According to the order documents, the company will perform a strict inspection before the shipping of the products. If you are interested in learning more about injection molding parts, or if you have a project that requires an injection mold manufacturing company in China to support the production of injection molds and injection molding parts, feel free to send us your Request for Quotation (RFQ). We will provide you with a quote within two working days.

Our engineers speak fluent English and possess extensive technical experience, ensuring that all issues are resolved after the initial mold trial. The technical specialist oversees the project from start to finish. Most of our project is approved by the customers after the first samples are received; all of these successes are credited to our professional team.

Are you seeking a China injection mold company for plastic molds? Send us an email to get a price. Call us to discuss your project.

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Plastic Injection Molding Service

plastic injection mold

Looking for plastic injection molding service?

Contact us to get quote, we are A Custom injection mold maker in China that offers plastic injection molding services.

The excellent quality of our plastic molds and molded parts, coupled with our experience and the performance of our services give us today a high international recognition.  Indeed, the company is specialized in International Business and has customers all over the world. SINCERE TECH has very high standards of quality control and always runs long tests to make sure that our Plastic Injection Molding Service reaches all the expectations of our customers. We believe that the quality of a company and its products are seen through time and this is why we like to build strong long-term partnerships with our customer

What is plastic injection molding process?

Plastic injection molding is a manufacturing process in which melted plastic is injected into a mold and then cooled to form a solid part. The mold is created from a metal or plastic tool (1.2344, H13, NDK80, etc.) and is typically made in two halves that are clamped together. The plastic material is heated in a barrel and then forced into the mold under high pressure where it cools and solidifies into the desired shape. This process is used to produce large quantities of identical parts with high precision and repeatability.

When do you need plastic injection molding service?

You may need plastic injection molding service when you require mass production of plastic parts with consistent quality and high precision. This process is ideal for producing large quantities of the same part, as the mold can be used multiple times to produce identical pieces. Additionally, plastic injection molding is well-suited for producing complex and intricate shapes that would be difficult or impossible to achieve with other manufacturing methods. This process is often used in various industries such as automotive, consumer goods, medical devices, and electronics.

plastic injection molding service

plastic molding services

Benefits of plastic injection molding service

The benefits of plastic injection molding service include:

  1. High volume production: Plastic injection molding is ideal for high volume production of identical parts, as the mold can be used multiple times.
  2. Consistent quality: The process is highly repeatable, which leads to consistent quality of parts produced.
  3. Complex shapes: Plastic injection molding can produce complex and intricate shapes that would be difficult or impossible to achieve with other manufacturing methods.
  4. Material flexibility: A wide variety of plastic materials can be used in the injection molding process, including thermoplastics, thermosets, and elastomers.
  5. Cost-effective: The process is efficient and cost-effective for producing large quantities of parts, as the cost of the mold can be spread over many parts.
  6. Precision: The process can produce parts with high dimensional accuracy and minimal tolerance variation.
  7. Automation: Plastic injection molding machines can be automated for increased productivity and reduced labor costs.

Plastic injection molding is a versatile and reliable manufacturing process that can provide significant benefits for producing large quantities of complex and high-precision plastic parts.

Plastic Injection Molding Service in China


We are the manufacturer of our own moulds (toolmaker or plastic injection tooling) and support the production of Injection molded parts allowing reducing your numbers of suppliers. Our injection machines have clamping forces going from 60 to 1050 Tons (2000 Tons outside). Plastic injection molding is the process of producing parts from thermosetting and thermoplastic materials.

Our qualified teams of Designers, Quality controllers and our Research and Development Department allow us to complete our policy: achieving Customer Satisfaction through Improvement and Innovation. The quality of our products and organization permits us to obtain quality certifications (ISO 9001, ) and be awarded numerous times of “Quality Supplier” from different customers. We integrate constantly new resources into our process in order to anticipate any future need of the plastic injection molds market and we became one of the most innovative companies in the sector. The modernity and the organization of our facilities allow us to adapt very quickly to the customer’s needs.

SINCERE TECH has always the objective to stay one of the innovative leaders of the sector and play an important role in our customer’s development. The firm can now propose a total solution from mould design to the semi-finished product (All in-house). SINCERE TECH is always willing to integrate new processes to the solution proposed by staying aware of new technologies. If a customer has a special requirement, we will do everything to fulfill its needs.

Plastic Materials /Commodities

We are used to working with all the classic and less classic plastic materials except PVC (PP, PE, PC, ABS, PC+ABS, PA 6, PA 6.6, PBT, PMMA, TPU, PC+GF, AS, PTFE, POM, PEHD, PEEK…). Our main suppliers are Sabic, Bayer, and Chimei.
About the steel used for our moulds, for export plastic molds we work only with the best steel suppliers like Assab (Sweden), Buderus (Germany), Daido Steel (Japan) LKM( the biggest one in China). For our standard component suppliers, we work with Hasco and DME.

We are used to working with our suppliers the same way we work with our customers. It means good long-term relationships with high-quality policy.

Complex moulds: SINCERE TECH has a rich experience in difficult plastic mould and parts, complex moulds and is an expert in finding solutions to your issues. SINCERE TECH is a real specialist in difficult tooling. To give a classic example: many design companies create plastic products without thinking about mould construction. Then, when the designs are sent to toolmakers, it can be hard for them to make the exact parts (Difficult design, many sliders, many lifters, double injection with materials non-bonding well together, many details in awkward places…).

Most of the classic toolmakers will accept the parts and say that they are able to do it. And then, they will have problems with the plastic injection mould construction, the lead time will be extended and the quality of the tool will not be as expected. Often, these companies have to contact SINCERE TECH to help them to resolve their problems. If you are not sure about the complexity of your part, be sure about your mould maker’s professionalism. SINCERE TECH works closely with its customers in order to resolve any issues.Plastic Injection Molding Service

Thin Wall injection molding: it permits a precise, very accurate molding of plastics and gives better details to the product. This is the name referring to products with a wall thickness lower than 2mm. Usually, the flow is quick, permits a short cycle time and a cost-saving.

Hot runner mold: the special process of injection of plastics where the plastic is kept hot when going through cavities of the mould while the rest of the mould is getting cold to solidify the plastic part and create the molded part: this permits to save plastic material. This is mainly used for parts with medium or large sizes. We are used to working with all popular companies like Yudo, INCOE, Synventive, Husky, HRS… We also have the technology to make our own hot runner systems if the production of the parts (Molding) is made in-house. This again allows our customers to save costs.

Optical Lens Molding: precision molding for glass plastic. This is the technique to produce transparent plastic molded parts (For example Security cameras parts such as the dome cover or also phone frames).

Gas-assist Injection Molding: the plastic parts are gas-assisted molded which means that gas (Most often is nitrogen) is injected at the final stage of the part creation process. It permits to reduce the cycle time, the product weight, the risk of deformation and also the pressure tons injection needed. Moreover, it makes the part’s structure stronger with a better look.

LED/LCD frame molding: injection of plastics used for example to manufacture television screen monitors, computer back-light modules, GPS frames…

IMD, IMF, IML, IMR Molding: In-mold decoration. The decoration of the part is made inside the mould through a film. The film is printed before the molding with the designs wanted. It permits better productivity and extends the decoration’s lifetime. If the customer wants to change the design/decoration of the part, it is not necessary to make another mould but only to change the film. SINCERE TECH is experienced with In-mould forming, in-mold-labeling, and in-mold by roller.

Overmolding: this technique permits to join several components together with a thermoplastic material. This reduces assembly and labor costs. Because the parts are made together, this allows less risk of improper termination or misalignment and increases the design flexibility. Moreover, thermoplastic provides better resistance to vibration or shocks. This technique permits to increase resistance, reduce costs and weights.

Insert Molding: this is a technique where a small part (Stamping part, optical part…) is added or inserted to the Injection molded part.two shot molding

Two-Shot Molding: 2 independent injection units using 2 different materials and/or colors. The first material is injected; then, the mould rotates and the second material is injected to make 1 part. It permits a 2-colour-molding or also called double injection, 2 shot molding, two-shot injection, overmolding, 2K injection, two colour injection, bi-injection, dual shot molding or multi-component molding.

CNC Technology. CNC is an abbreviation for Computer Numerical Control. This is a machine extremely accurately controlled by computer programs permitting a CAM (Computer-aided Manufacturing) through a CAD (Computer-Aided Design). Any plastic injection tool manufacturer uses it but the value-added of SINCERE TECH is the experience, professionalism, and training of the staff.

FMMS Molding or can be called RHCM (Rapid Heat Cycle Molding): excellence surface appearance: permits to take off the welding line. This process is integrated into the molding to save time. It is used for example for clear plastic parts.

US Welding: Ultrasonic Welding: process to weld/ join/ assemble plastic parts thanks to ultra-sounds.

Silk-Screen Printing:  this is to print logos or designs on parts.

Dip-Coating: this is the process of putting the component inside a liquid solution to apply a thin film on it. It permits to manage, change the hardness, the strength of the part by protecting it and expanding the lifetime of the product. Then, the excess liquid has to be drained and evaporation of the solvent is done to create the thin layer.

Laser Etching: this process is made for cutting a shape, a pattern, an image on the plastic part. It is also called laser graving.

Sputtering coating: this is the process of creating a very thin layer of conducting material on the component. It is also called Plasma Enhanced Chemical Vapor Deposition (PECVD) and can be done with most metals like aluminum, stainless steel, copper…

EMI shielding: protect parts from electromagnetic interferences. It is used to protect electrical signals from the outside world. For instance, we use it with marine radars for Garmin.

Waterproof technology: SINCERE TECH has the experience to make water-resistant parts and is able to ensure in-house tests thanks to the IP68 tests.

Sub-assembly: this is the pre-assembly of a component who will be later on being assembled in a larger product.

R&D: SINCERE TECH has its own Research and Development department in order to work with the customers on their projects, advise them on designs, resolve issues and study the feasibility of those.

Quality Control: We have very high standards of quality control in order to respect any requirements from our customers. We have a 100% quality control on our plastic molded parts, it means we control any part coming out of our production.

At Sincere Tech China mold maker, our unwavering commitment to staying at the forefront of the plastic mold industry drives us to embrace advancements and anticipate future trends. We continuously explore innovative materials and composites that offer enhanced performance and promote sustainability. By investing in ongoing research and development, we consistently deliver cutting-edge solutions that meet the evolving needs of our valued customers. As a trusted injection mold supplier in China, we take pride in our unwavering dedication to excellence.

Aligned with our sustainability goals, we place a high priority on environmentally friendly practices. We actively seek out sustainable alternatives, such as biodegradable polymers, and implement recycling initiatives to minimize the environmental impact of our manufacturing processes. By choosing our custom injection molding services, you can align your brand with sustainable manufacturing practices and contribute to a greener future.

Ensuring quality is our topmost priority, and we maintain rigorous quality control measures throughout the entire manufacturing process. Equipped with state-of-the-art facilities and staffed by skilled technicians, we subject each product to thorough inspection and testing. This guarantees exceptional performance, reliability, and customer satisfaction.

When you choose Sincere Tech as plastic injection molding service partner in China, you can expect the highest level of professionalism, expertise, and innovation. Our dedicated team is committed to helping you bring your ideas to life, delivering superior products that excel in performance, durability, and cost-effectiveness.

Partner with Sincere Tech Mould suppliers for your custom plastic injection molding service, and benefit from our comprehensive capabilities, unwavering commitment to quality and sustainability, and our drive to exceed your expectations at every step of the process. Together, let’s bring your innovative ideas to life.

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