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cold runner mold, cold runner molding, hot runner molding, Injection molds, plastic molding service, plastic mould

Cold Runner Mold

Cold Runner Mold: Plastic Injection Molding, Simple Part Design, Limited Production Runs, Low Maintenance, Change Production Color, Low-Cost Mold

What is cold runner mold

A cold runner mold is a type of injection molding tool where the plastic material is cooled in a separate channel or “runner” before it reaches the individual cavities of the mold. The plastic resin is injected into the cold runner system, where it solidifies before being directed into the cavities to form the final parts. The term “cold” refers to the fact that the runner system is not heated, unlike a “hot runner” mold. Cold runner molds are often used for producing large numbers of small, simple parts and are relatively low-cost to produce.

SINCERE TECH (plasticmold.net) provides plastic injection mold solutions to industries of all types and sizes.

Our state-of-the-art mold building facilities include high-speed CNC Milling and mirror EDM Machining for many types of complex specialty injection molds, including insert molds, gas-assist injection molding, 2K mold, multiple cavities mold and unscrewing molds. We can build molds from small to big (25 ton) for both hot runner mold systems and cold runner mold systems.

Cold Runner Molds: Efficient and Economical

Here are some key characteristics and considerations of cold runner molds:

Runner System: In a cold runner mold, the plastic material is injected into a runner system that distributes the molten plastic to multiple mold cavities. The runner system is typically designed to be easily removed from the finished part, but it generates waste material (the runners) that needs to be recycled or disposed of.
Simplicity: Cold runner molds are simpler and less expensive than hot runner molds because they do not require the complex heating and control systems associated with hot runners.
Material Waste: The main drawback of cold runner molds is the generation of material waste. The runners are typically discarded or recycled, which can add to material costs.
Cycle Time: Cold runner molds may have slightly longer cycle times compared to hot runner molds because the plastic in the runners must cool and solidify before the parts can be ejected.
Part Quality: The simplicity of cold runner molds can make them a good choice for parts with relatively simple geometries. However, in some cases, cold runners can cause aesthetic defects like visible weld lines on the finished parts.
Heat-sensitive Materials: Cold runner molds are suitable for a wide range of plastics but may be less suitable for heat-sensitive materials that can degrade during the cooling process.
Maintenance: Maintenance and cleaning of cold runner systems are generally easier compared to hot runners because there are no heated components to deal with.

Ultimately, the choice between cold runner and hot runner molds depends on the specific requirements of the molding project, such as part complexity, material selection, production volume, and cost considerations. Cold runner molds are commonly used in many applications, particularly when cost and simplicity are important factors.

Choosing the correct system depends on the requirements of the part to be produced. A few of the considerations include:

Part complexity
Color requirements
Physical characteristics of the material
Type of material – virgin or “regrind”
Color changes during the production run

Cold runner systems are best used:

When the parts produced are of simple design,
For limited production runs, or
When a rapid change in production colour is needed

In a cold runner mold, the runner (excess material retained in the feed channels) is cooled and ejected with the part. Every cycle, apart, and a runner is produced.

: Three plate cold runner mold

: two plate cold runner mold

There are two major types of cold runner molds:

A two-plate cold runner mold is the easiest and least expensive type of mold to produce. Two plate molds have a single parting plane, and the mold splits into two halves at the plane. Because the runner system must be in line with the parting plane, the part can only be gated on its perimeter.
A three-plate cold runner mold differs from a two plate in that it has two parting planes, and the mold splits into three sections every time the part is ejected. This feature provides greater flexibility of design, allowing gating to be placed in the most efficient locations. Since the mold has two parting planes, the runner system can be located on one, and the part on the other, for easier separation.

Cold Runner Mold Systems: The advantages & disadvantages

There are many significant advantages to using a cold runner mold system:

Simple, lower-cost mold design and construction
Considerably less expensive than a hot runner system
Moulds require less maintenance
Easier to set up and operate
Colour changes are easy – all plastic in the mould is ejected with each cycle

While it is a less expensive process that hot runner systems, there are a few disadvantages to cold runner systems that need to be considered, including:

Waste plastic generated
Runner material must be either disposed of or
reground and reprocessed
Additional steps in the manufacturing process
Regrind will increase variations in the injection
molding process
Regrinding could decrease the plastic’s strength characteristics and mechanical properties

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 your preferred plastic mold maker 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 today and experience our relentless pursuit of excellence, as we work together to bring your vision to reality.

Our expanded capabilities include:

Rapid Prototyping: We offer rapid prototyping services to quickly transform your concepts into tangible prototypes, allowing for iterative design improvements and accelerated product development.
Precision Tooling: Our advanced tooling capabilities enable us to create high-quality molds with tight tolerances, ensuring consistency and precision in your injection-molded products.
Overmolding: We specialize in overmolding, which allows for the combination of multiple materials or components, resulting in enhanced functionality, aesthetics, and durability.
Insert Molding: Our expertise in insert molding enables us to securely encapsulate inserts within the molded parts, facilitating efficient assembly and enhancing product performance.
Two-Shot Molding: With two-shot molding, we can produce complex, multi-material components in a single operation, reducing assembly requirements and enhancing design possibilities.
Value-Added Services: In addition to injection molding, we offer a range of value-added services, including product assembly, packaging, and logistics support, streamlining your supply chain and reducing costs.

Partner with Sincere Tech Mould suppliers for your custom injection molding needs, 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.

2021年4月24日/1 Comment/by admin

Injection Molded Plastic, injection molding, injection moulding, plastic injection molding, plastic molding, plastic molding china, Plastic Moldings

Plastic Injection Molding

Plastic Injection molding China

We have over 15 years of experience in offering high quality plastic injection mold and plastic Injection molding production in different shapes and sizes.

We have a team that supports you from part design, mold making and massive production.

To save your cost we provide professional technical expertise and advice to enable you to decide the kind of mold that suit your product.

Over the years we have been able to deliver high quality services with guaranteed satisfaction and we hope to deliver same to you.

Send us your requirement for quotation we will quote you within 24 hours.

What is plastic Injection Molding

Plastic Injection molding can be defined as a procedure, which can help in shaping plastic, in its requisite fold. Moreover, for the better shape, you might want to take help of rigid mold or frame. This technique can also be used to deal with the objective creations, associated with the various shapes and sizes. Moreover, the products comprise of both highly and simple designs. On the other hand, some companies can even offer complex designs, to match the growing demands of the clients.

plastic mold

Plastic molding process

For the primary step, you need to go through the plates of sheets, where the liquid material will be placed. The high melting point is used to deal with the right melting the plastic or other raw materials. After placing the liquid in the structure, high pressure is incorporated from outside, for availing the right shape of the dice. After a mold is cooled down completely, you can remove the molded parts and use for the final manufacturing services. However, you need to determine the material’s amount along with minimum energy requirement, associated with the heated melting point.

Underlying concept available

When you are Looking for China Injection Molding Companies, you are easily to get hold of correct underlying concept, associated with the plastic injection molding . The main aim is to take a look at the dice first, to produce the exact shape, as per the requirements. To match up with the growing demands of clients

injection molding machine

Injection Molding & Injection Molding China

We are one of top 10 mold manufacturers in China, professional in Injection mold and injection molding manufacturing, Sell plastic parts from China to the world, we have been provided with the best quality the over 40 happy customers which they are fully satisfied by our quality and service, you are welcome if you need our supporting, we sincerely hope we could service in the near future and you will be surely happy as same as our other happy customers.

A variety of commercial methods are used to produce thermoplastic plastic products. Each has its specific design requirements, as well as limitations. Usually, part design, size, and shape clearly determine the best process. Occasionally, the part concept lends itself to more than one process. Because product development differs depending upon the process, your design team must decide which process to pursue early in product development. This section briefly explains the common processes used for thermoplastics from Bayer Corporation. Injection Molding, today lots of companies buy molding parts from injection molding China companies, if you need injection molded parts for your business, you need really think about this.

An injection molding machine is used to manufacture plastic products by the injection molding process detailed above. There are two main parts to the machines – the injection unit and the clamping unit. Please go to our injection molding section area to know more information

Do you need injection molding or are you looking for injection mold china partner to make plastic molds and produce the plastic molded parts for you? Send us an email we will reply to you with two working days.

If you want to know more knowledge, please go to our other injection moulding page.

2021年4月23日/0 Comments/by admin

plastic injection mold, Plastic Injection Moulding China, plastic molding service

How To Buy Plastic Injection Mold and Molding Parts From China

China has become a major destination for Plastic Injection Mold and molding parts service. Lower prices are the primary incentives for many foreign buyers. The majority of foreign buyers find challenges sourcing plastic injection molding from China. The major strains are on how to buy, how to evaluate quality, or how to identify a reliable source.

Many things go wrong in case of compromise in the purchase process. For example, delayed delivery, frauds, low quality, weakness of communication (both on language and technical), and other problems may be encountered. To avoid such frustrations, the following is a process of how a buyer would purchase plastic injection molding from China. Hope this could help you find your best suitable supplier

Identify a Reliable Plastic Molding Manufacturer

Currently, there are many mold manufacturing companies in China. You need to determine which supplier is reliable. Some of the factors to consider include, mold price, quality, quantity, accessory standard, communication, lead times, and the mold design, among other factors.
Using the World Wide Web, you can easily find a wide range of plastic molding suppliers from the internet, sourcing agents, and trade shows, etc.

It is important to contact several suppliers before making a decision on a suitable supplier.

Evaluate the Various Mold/Molding Manufacturers

Conducting market research on the various plastic molding manufacturers helps to find a suitable fit for the business. So how can one evaluate the Chinese mold makers to identify a reliable source?
Sending inquiries helps the evaluation process. You should focus on asking questions that evaluate the core competence of the plastic molding companies.
A good supplier is one that shows interest in your projects, has effective communication, knowledgeable, detail-minded, and honest. The evaluation should target to identify the salient attributes of the supplier, for example, what is advantages do they have, is it suitable for your project? Have they done any similar projects like yours? All of the information will help to make your project smoothly or not.

Information Verification

Not all manufacturers are who they say they are. The customer should be able to verify the plastic molding manufacturer. Some of the information that can be verified include:

Type of mold parting line
The type of ejection modes, whether pins are used and the particular locations,
Surface requirement on the visible surface
The location and type of gates

Such information helps to verify the mold designs and product appearance. the most important thing is basing on this discussing with each other you will know their communication and technology ability. A supplier that verifies the information and offers samples is reliable.

Analysis of Production Issues that may Arise

A good plastic molding supplier should communicate the issues in advance and concerns that may arise in the production process, and actions are taken to address the issue. A good injection mold company should analyze the current design and offer rational recommendations, we call this DFM report.
Some of the important questions that help identify some of the issues include;

Have you produced similar molds/products before?
What were the challenges encountered?
Can you send your quality control inspection report?
How do you address the issues that arise?
Do you offer compensation for compromises?

With all the information, you should already have identified which Chinese molding company to source from.

Firm/Supplier Site Visit

Depending on the quantity of supply sourced, visiting the supplier may be important. For large quantities of plastic molding service, traveling to China should be a basic step. The objective is to analyze samples and evaluate the reliability of the supplier.

Go to their plastic molding company on site to communicate with them face to face, then you will know how the technical skill, English ability, etc. But mostly not always have time to check their mold factory, so we suggest you may ask for a skype video shows if you have no time to visit them.

At SINCERE TECH will take Skype video meeting to show you around our plastic mold and molding factory if you have no time to visit our factory, our sales and project manager speak good English and have the professional technical skill, you will know this during the video shows. if you are interested in our service, you are welcome to contact us.

injection moulding company

Maker A Contract

Importing products from China and Asian nations can be risky and complicated. Contracts are antidotes against the common mistakes and issues that may arise. It is essential for buyers to get into a contract for the following reasons;

To maintain clarity on product specifications and avoid misunderstandings. The specifications of the product can be easily lost in Skype or mail communication.
Compensation terms help suppliers to think twice about compromise.
Contracts help to communicate on how severe your business is
It helps to avoid delays

The first time you work with a China plastic injection molding company (same to work with your local supplier), you should always make agreements on contracts to avoid scams and fraud. Suppliers who default the negotiations should be responsible for making refunds and necessary compensations.

7.Payment and Delivery

Based on the set agreement, the amount can be paid by one time or two times ( maybe more times). The payment method depends on the agreed strategy. Some companies make payments via Paypal, Skrill, Payoneer, Western Union, Cheque, or other policies. Our standard payment term is T/T wire transfer. If the small amount. PayPal is still available, this is method is normally working for all of the companies in China, especially for custom plastic molding manufacturing service.

Concluding Thoughts

Buying plastic molding from China can be challenging. However, if you follow the seven steps, the process is easy and with no compromise. when you find your reliable partner from China, then your business will be increased rapidly, this is verified by lots of companies like Apple, and other car companies (over 80% of car companies buy their auto car molds from China), etc.

Doing online businesses have fraudulent operations. You should be cautious on the approach of doing business online to avoid frustrations, lots of company doing online business with China and successful to the business, also some of the customers had issues when doing business with Chinese mold manufacturers, or even have issues with your local supplier as well, do you agree? The above steps could help you avoid this issue and the success of your business.

Need any plastic injection mold/molding companies from China? Contact us now, you will find out we are your best partner in China. Welcome to talk with us on any questions.

2019年7月2日/by admin

Injection molds, plastic injection mold, plastic injection molding, plastic mold

Plastic Injection Mold

Plastic injection mold and molding manufacturing company in China! Here you find information about custom plastic injection mold and molding processes, techniques, and specialized molding technology so that you keep yourself informed with the latest trends and technology.

We offer 30% savings for mold manufacturing and molding production services.

We have over 15 years of experience in plastic injection mold and molding manufacturing services, plus fluent technical English communication (technical English communication is very important when working with foreign customers).

We 100% guarantee that your project will be successful. You will be impressed and satisfied with our quality, price, and services.

Send us your requirements for a quotation; you will not lose anything but our competitive price for reference.

We are willing to sign an NDA document to protect your project, and we could send you our customer’s information so that you can verify our quality and services.

What is a plastic injection mold?

A plastic injection mold is made of metal steel that has been made with a hollow base apart, as sharp as you want, and later filled with a liquid or any other material that can be used to make your plastic products, which will last millions of cycles. Some of the materials that can be poured into the hollow space of the steel include plastic, metal, glass, and even ceramic materials. The liquid is allowed to solidify, and the block is broken to retrieve the mold that has acquired the shape of the block. A plastic mold is a custom mold that is used for making custom injection molding parts.

Plastic mold technology

Plastic mold technology is by far the most popular method to manufacture plastic parts in the world today. This process is used for everything from inexpensive commercial plastic products, like disposable eating utensils and toys, to severe environments and highly stressed technical components, like critical parts for the automotive and aerospace industries.

You’ll find extensive use of injection-molded plastic parts in the electronics world for things like enclosures for cell phones, computers, televisions, and the like, as well as in the medical world, where things like syringe bodies, breathing apparatus, and a wide range of other life-saving devices are employed. No other process has come to dominate modern manufacturing as much as plastic molding, and its use increases every year.

Recently, critical steering components for General Motors cars and trucks were changed from stamped and machined steel parts to a plastic-molded assembly, resulting in a lighter part at a lower cost, quieter, and more reliable.

What is Plastic Injection Molding

Plastic injection molding or injection molding is the process of heating thermoplastic resin to a liquid, then shooting it under high pressure into a mold cavity that is the negative image of the desired part, allowing it to cool, and then opening the mold to allow the completed part to be ejected out of the mold.

In most cases, features can be built into the plastic mold cavity to give the part everything it will need when finished so that no other operations are needed once the part comes out of the mold. Textures, or high polishes, markings, screw holes, lens shapes, and any other features needed in the finished part can be built into the mold, so the finished part automatically has these features incorporated.

The advantages of plastic molding

The beauty of plastic molding is that many parts, even millions, can be made in exactly the same way and will come out the same no matter what. Each piece will have identical features, the same dimensions, and the same physical properties. It is the ideal way to make high volumes because of this consistency. Properly maintained, injection molds can last decades, making millions of parts per year. Properly set up and controlled, the 20 millionth part will be identical to the first part in every measurable way. No other manufacturing process has the potential to operate at this level of consistency.

Multiple cavities of each part can be built into the plastic injection mold tool, so that each time the mold opens, you can make 16 or 32 or 48 or some other multiple of parts for each cycle of the injection molding machine to really increase the production rate and greatly decrease the cost of making a part.

In some cases, several different parts—for instance, a right- and left-hand version of an enclosure—can be made in a single mold to reduce the number of machine cycles required to make multiple parts of an assembly, increasing production and lowering the injection molding cost. Injection molding also offers flexibility not possible with any of the other manufacturing processes.

Injection molding also offers one of the lowest scrap rates of any other manufacturing process as well. Since no second operation is generally required, no material is cut off and thrown away. It is possible to use a special technique to completely eliminate even the small pathways the plastic flows through to cut the material scrap rate to virtually zero, or often, any plastic removed in the process can be reused by pelletizing it and mixing it back into the fresh plastic resin in closely controlled proportions. These capabilities mean a higher percentage of the raw material becomes part of the finished part than in any other process. Plastic injection molding is highly efficient.

Sincere Tech has been one of the top 10 mold manufacturers in China since 2005, located in Changping, Dongguan City. Sicnere Tech offers the plastic injection mold and molding manufacturing service. The company has shown promising growth each year; today, it accumulates to over 30 million RMB.

What makes us a unique plastic injection mold manufacturer?

With so many others in the business, what is it that has made us this successful in all these years? Let us take a look at some features that make us unique and a preferred choice for our customers.

It all starts with the plastic injection mold/molding factory.

Our plastic mold company is clean; everything is well ordered and well managed. When it comes to the technology we use, we make sure that at Sincere Tech we use nothing but the most advanced and high-tech available, be it for software or hardware systems around the factory. It helps us take control of the quality of the plastic mold we produce. To make goo- quality molds and parts.

We use a high-speed FUNAC CNC machine that was imported straight from Japan and has over 24,000 rotation speeds. Moreover, we have two big CNC machines with 2-meter strokes and a full automatic three-coordinate measuring (CMM) machine to ensure that our processes are fast, efficient, and precise. That high-tech equipment, plus our professional team, helps us meet our targets.

Professional team

We have over 65 staff members in our factory, and each one is an expert in his field and fully qualified to handle the different aspects involved in the injection mold making processes. From producing to managing the business, the team has been carefully selected to allow growth and give our customers premium-quality products.

All the engineers on our team have a good command of the English language to ensure adequate technical communication and a rich experience in the project. Even if you are not good at plastic injection molds and part design, our team will lead you and think through every detail on your behalf. This will help your project go smoothly and successfully.

Various Plastic Molded products Available

When it comes to plastic injection molds and injection molding parts, we have qualifications in a lot of fields and are experts in each one of them. The molds and molding parts we produce are used by consumers in household appliances, industries, food packaging, electronics, automobiles, interior parts in cars, etc. Our team puts in the same amount of attention and hard work in each one of these molds to maintain our loyal customer base.

Customer satisfaction

We realize the importance of keeping our customers happy and thus never compromise on quality. Our plastic injection molds last a long lifetime and always meet every expectation our customers might have of them. The molds and molded products we make pass every test they are put through and are accepted by customers from all fields equally well.

Affordable Price

With the quality we provide, one might expect our plastic injection molds to cost a fortune, but this is not so. All our molds and molded parts are priced very strategically to have market-competitive prices. The quality we produce is available at reasonable rates, and this is what has our customers choosing us time after time.

Customer service

Unlike other brands, we do not forget our customers even after the plastic injection mold has been shipped to our customer side. We provide efficient customer care services, and our staff is always ready to help before, during, or even after the sales have been made.

For us, we are not only the suppliers to the customers. Being on their side, we make every possible effort to ensure customer satisfaction. This is made possible by maintaining transparency in a communication system and ensuring a quick response to all problems they encounter.

So, what are you waiting for? Get in contact with our team right away and have them offer you the best plastic injection molds and molding parts for your project. For us, you are important. Making your business successful is our goal.

Thank you for considering Sincere Tech as your partner for all your plastic injection molding needs. As a leading China mold-making company, we are committed to delivering top-quality plastic injection molds and related services to our customers.

Our experienced team of professionals is dedicated to providing the best possible solutions tailored to meet your specific needs and requirements. With a user-friendly interface, navigating our website to find the products and services you need is easy. We offer a wide range of services, including plastic mold, custom plastic injection molding, rapid prototyping, mold design, post-manufacturing, assembly, and delivery.

At Sincere Tech, we pride ourselves on working with our customers from start to finish, whether you are in need of a single prototype or a large-scale production run. Our team is always available to answer any questions you may have and offer guidance and support throughout the process.

We are confident that our service, expertise, and resources will take your business to the next level. So, why wait? Contact us today if you are looking for reliable, affordable, and high-quality mold suppliers. We look forward to working with you!

2019年6月4日/by admin