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

Automotive Plastic Mold, China mold, Injection molds, plastic mould

Automotive Plastic Mold

Automotive Plastic Mold from Chia

We know there are many a fashion contracted car parts, it need different parts of the rich also surprises people; And a lot of auto parts in the production of also need certain mold, so the market is need a variety of automobile plastic molds; At the same time due to the use of the car performance is most in need of various parts of the precision of coordinate, so they need auto mold is adherence to specifications.

For car production is a complex process, and that this complexity is the specific performance for the parts of the production process, but if you use the high quality of auto mold is very good, you don’t need to trouble! PURROS can not only provide people with a variety of high quality automotive mold, also can do professional production in the mold.

What is Automotive Plastic Molding?

Automotive plastic molding refers to the process of shaping plastic materials into desired parts and components for use in the automotive industry. This process involves the use of specialized molds, called dies, which are created using computer-aided design (CAD) software. The plastic, typically in pellet form, is then heated and injected into the mold under high pressure. Once the plastic has cooled and solidified, the mold is opened and the finished part is ejected.

There are several different types of plastic molding techniques used in the automotive industry, including injection molding, blow molding, and rotational molding. Injection molding is the most common method, accounting for around 75% of all plastic molding in the automotive industry. It is suitable for producing high volumes of parts with tight tolerances and fine details. Blow molding is used to create hollow parts, such as fuel tanks, and is suitable for low to medium production volumes. Rotational molding is used to create large, complex parts with a seamless, one-piece design and is suitable for low volume production.

Applications of Automotive Plastic Molding

Automotive plastic molding has a wide range of applications, from exterior body panels and trim pieces to interior parts such as dashboards and door panels. It is also used to manufacture a variety of under-the-hood components such as air intake manifolds, engine covers, and transmission parts.

One of the most significant benefits of using plastic molding in the automotive industry is the ability to create complex shapes and designs that would be difficult or impossible to achieve with traditional manufacturing techniques. Plastic molding also allows for the creation of parts with varying thicknesses and strength levels, which can be tailored to meet the specific needs of each application.

In addition to its design flexibility, automotive plastic molding has several other advantages over traditional manufacturing methods. It is lighter in weight, which helps to reduce the overall weight of the vehicle and improve fuel efficiency. Plastic parts are also more resistant to corrosion and can withstand extreme temperatures, making them ideal for use in harsh environments.

Plastic molding also has a lower carbon footprint compared to metal manufacturing techniques, as it requires less energy to produce and produces fewer emissions. This makes it an attractive option for automakers looking to reduce their environmental impact.

Challenges of Automotive Plastic Molding

While plastic molding offers many benefits for the automotive industry, it also presents some challenges. One of the main challenges is the high initial cost of tooling, as the creation of specialized molds can be expensive. Additionally, plastic parts are not as strong as metal parts, and they may not be suitable for certain high-stress applications.

Another challenge of automotive plastic molding is the potential for quality issues. Ensuring that the plastic is properly heated and injected into the mold is crucial for producing parts with consistent quality. Any defects or variations in the process can result in faulty parts that may need to be scrapped.

Finally, there is a growing demand for recycled and sustainable materials in the automotive industry. While plastic can be recycled, the recycled plastic may not have the same properties as virgin plastic and may not be suitable for use in certain applications.

plastic molds

This is the introduction for auto mold, so the rich variety of mold, at the same time to ensure the quality.

For China’s manufacturing industry, a lot of people very bullish on the manufacture of auto mold, because the automotive industry level has very good play to their strength, and now it seems that this is a industry can bring people a lot of people can’t imagine.

Among the many Automotive Plastic Mold maker in what is now the competition is very intense, therefore also make a lot of people are very like this kind of phenomenon can more arouse the vigour of the industry, in now, it seems, mold has such an environment is more and more towards an international standard.

And among manufacturers also have a lot of services, such as car modification industry need some custom of auto mold, as the sample can be custom through such manufacturers, so also can save a lot of need to go abroad for custom-made cost, if you have a automotive parts project then you need Automotive Plastic Injection Molding Companies to finish this project for you, contact us to get price for your automotive project.

2021年4月23日/by admin

2021年4月23日/0 Comments/by admin

China mold, injection molding, Injection molds, injection moulding, plastic molding, plastic molding china, Plastic Moldings, plastic mould

China Mold Maker

Overview of the China Mold Industry

China Mold Maker is one of the most important mold makers in the world. China is home to different categories of moldmakers, and this usually presents a challenge to anyone looking for a mold maker in the country. Many first-time buyers are usually amazed by the sheer availability of mold makers but soon come to realize that they should have taken more time in selecting the most appropriate and suitable mold maker.

It is relatively easy to spot a good mold shop in most of the developed countries, such as the United Kingdom, America, or Japan. Of course, the price is very high, but the case is quite different in China. This is because the numerous mold makers in the country do not all make high-quality molds. Instead, a good number of these mold makers usually produce low-quality molds that are mainly tailored to satisfy the needs of the local market.

Be that as it may, this is not to say that it is impossible to find the best mold maker in China. This is because there are an equal number of mold makers in the country, and all one needs to do in order to spot them is take time and carry out appropriate market research.

Why do you need service by China mold maker

One of the main reasons why many plastic injection molding companies are buying plastic injection molds from China is the affordability of these molds. China injection mold is significantly cheaper than molds from othercountries,s especially molds from western mold manufacturing companies.

In order to save money, many countries are indeed trooping to China to take advantage of this price variation. Despite this affordability, it is important for companies to take several steps in order to ensure that they do not fall prey to the numerous low-quality Chhina mold makers.

First and foremost, companies should carry out comprehensive research on the available China mold makers. Before making the final purchasing decision, companies should inspect the quality of the molds made by different Chinese mold makers and ensure that their purchasing decision is informed by this inspection.

In addition to inspecting the quality of the molds, companies should scrutinize the terms and conditions of the mold suppliers. This should enable the company to enter into a contract with the mold makers who offer the most suitable terms. For instance, one of the most important considerations to make when it comes to the terms of sale is the nature and period of the warranty. Companies should select injection mold makers in China that offer the most suitable period and warranty terms.

Finally, it is important to find a China mold company that can speak good English and a good

understanding of the mold technology. Since you are doing business far away from your country, you cannot come to China every time. Good communication and technical skills can make your project run smoothly and successfully. Below are some comments on technology that relate to plastic injection molds:

Plastic injection mold/molding technology

Plastic injection molding is what people call the process of filling a plastic mold with liquid plastic and cooling it for it to take shape. An injection mold maker is the company that makes the mold for injection molding. An injection mold maker makes molds from metals, usually steel or aluminum. The mold manufacturing process requires precision because a mistake means a repeat of the process or the part made will not function well enough and may be substandard.

The process of plastic injection molding relies solely on the accuracy of the injection mold. If the plastic injection mold maker makes a mistake in making the necessary molds needed to produce a plastic product, the overall effect will be defective. The mold maker must have precise measurements of the mold it will make in order to fully meet the standards of the manufacturer and client.

Materials Used in the Process of Plastic Injection Molding:

The usual materials used by plastic injection molding are plastic materials like polystyrene, acrylonitrile butadiene styrene, nylon, polypropylene, polyethylene, and PVC. These are thermoplastic materials that are usually used by injection molds and molding machines to produce the plastic parts that they will sell.

The polystyrene material is lower in cost and material grade. ABS is a plastic that is harder than the previous one but not as flexible. Nylon can resist most chemicals and is more flexible than the previous two. Polypropylene is the plastic usually used to manufacture containers because it is tough and flexible. There are many thermoplastic materials that can be used in the injection molding process. If you do not know which plastic is the best option for your project, you are welcome to contact us.

A plastic mold maker will have to make more molds if the molds are used for metal injection molding. Metal injection molding wears out the molds more than plastic molding because the melting temperature of metals is higher than that of plastics. Despite this additional cost, manufacturers still utilize injection molds for metal molding because the prices of metals that are molded this way are still profitable.

Welcome to Sincere Tech, who is a China Mold Maker, your one-stop-shop for all your plastic injection mold needs. We are one of the top 10 mold manufacturers in China that offers exceptional mold-making services to customers all over the world. Our team of highly skilled and experienced professionals is committed to delivering high-quality products and services that meet and exceed your expectations.

Our Services

At Sincere Tech, we offer a wide range of services to our customers. Some of our services include:

Plastic Injection Mold Making: We specialize in the production of plastic injection molds for various industries. We use the latest technology and equipment to create high-quality molds that meet your exact specifications.
All of our export molds use HASCO or DME mold components so that the customer can change the mold components easily. We offer a lifetime warranty for our export molds, including both a half-million shot (pre-hardening mold steel such as P20, S136, NAK80, etc.) and a million shots (hardening mold steel such as 1.2344, 1.2343, H13, etc.). Depending on our customers requirements, during this warranty time, if any issue happens, we make free inserts for our customers with no cost.
Mold Design and Engineering: Our team of experienced designers and engineers works closely with you to design complete 3D mold drawings that are tailor-made to your specific needs.
Rapid Prototyping: We offer rapid prototyping services to help you test your product designs before mold manufacturing. This helps to reduce development time and costs.
Injection Molding: We have a state-of-the-art injection molding facility that enables us to produce high-quality plastic products for a wide range of industries, including overmolding, insert molding, medical injection molding, and many more.
Mold Maintenance and Repair: We offer maintenance and repair services for molds that are worn out or damaged. Our team of experts will diagnose the problem and provide the necessary repairs to ensure that your molds are in perfect working condition.

Why choose the ST China mold maker?

At Sincere Tech, we pride ourselves on providing exceptional services to our customers. Here are some of the reasons why you should choose us:

Quality Products: We are committed to delivering high-quality molds and products that meet and exceed your expectations.
Experienced Professionals: Our team of experienced professionals has the expertise to handle all your plastic injection mold needs.
Competitive Prices: We offer competitive prices without compromising on the quality of our products and services; mold costs as little as $500. Contact us for a quote.
Fast Turnaround: We understand the importance of meeting deadlines, which is why we strive to deliver our products and services within the shortest time possible.
Customer Satisfaction: We are committed to ensuring that our customers are satisfied with our products and services. We work closely with you to ensure that your needs are met. Our engineers speak good English and have 10 years of technical skill. This will give us the best service to our customers. Our engineers will keep our customers posted every week and inform them of the manufacturing status of every project.

If you have a project that needs an injection mold maker from a Chinese company, please don’t hesitate to contact us. We will quote you the price in 24 hours.

2021年4月23日/1 Comment/by admin

Injection molds, plastic injection tooling, plastic mould

Plastic Injection Tooling Manufacturing

Creating properly parts design and built plastic injection tooling is the most important part of any injection molded parts development. In order to build a successful high-quality plastic injection mold tooling, a comprehensive plan must be followed.

Plastic Injection Tooling Design

If a plastic injection tooling is designed incorrectly, the penalty may be paid in part quality, injection molding tool repair costs, or longer cycle time (higher component cost) for the entire length of production needs. Because of this we focus on injection tooling design with production in mind and specify parameters up front so that design specification errors or omissions never enter into the quality/cost equation.

Moldflow Analysis

we do Moldflow filling analysis during plastic injection tooling design & development to assure proper plastic flow through the tool and answer questions such as sprue size, runner size, gate size, gate position, number of gates, plastic shear level, tonnage required, weld line locations, potential air traps (potential burn marks), sink marks issue, filling time, and a host of other important issues must be analyzed before any steel is cut. This analysis is completed in the tool design phase to eliminate costly tool or part design problems that might otherwise go unnoticed until it is too late.

Plastic injection Tooling Cost

There is a wide range of parts from the very simple to the very complex with a range low to very high production volume requirements. Likewise, there are many levels of plastic tooling manufacturing companies with varying levels of overhead and capability. If a mold tool is built by a plastic tooling company with a capability level or overhead level that is above what is needed, plastic tooling cost can exceed the level that would allow a project to go forward. Likewise, if the plastic tooling company does not have capabilities needed for a complex mold, quality, price, or delivery time could suffer. This is why plastic tooling complexity must be matched with toolmaker size and capability.

We are a professional plastic tooling company in China, we make injection molding tools from small to big up to 30 tonnages, we have full plastic tooling manufacturing equipment to do all of mold manufacturing jobs in-house, this will be easy to control the lead time and quaintly of plastic injection tooling, plastic tooling we make are export to Canada, Germany, American and more country in America and Europe, The tooling components for plastic tooling can be matched correctly base on customers requirement, for Europe export plastic tooling we use HASCO tooling components, for American customers we use DME tooling components, so customers can replace any tooling components easy and fast.

Plastic Injection Tooling Warranty

We appreciate our customer’s investment and we stand by our plastic tooling. Any injection moulding tooling developed through our mold factory will have lifetime shots guarantee, plastic toolings made by our factory normally have 3 types of shots guarantee.

1. Minimum of one million lifetime shots guarantee. For this type of plastic injection tooling, we use hardened steel for cavity and core, like S136,1.2344, H13, 1.2083, 1.2343, etc, the hardness of steel is HRC 48-52,

2. Minimum of a half million-lifetime shots. For this type of plastic injection mold tooling, we use pre-hardened steel material, such as 1.2738H, P20, 1.2738HH, etc, the hardness for this injection mold tooling is HRC 33-38.

For export injection moulding tool, all of the cavity/core steel is bought from LKM (the biggest mold steel company in China), or buying the steel in Europe brand according to customer requirement.

3. The above two types of plastic injection tooling are for export tooling, this one is for the none export injection moulding tool, which means we will produce the plastic molded parts for the customer and ship the plastic parts to our customers, the mold tooling lifetime for this type of tooling will be no limited (as many as customer wants), the reason because we have the plastic tooling in-house, if any issue happened we can fix the tooling for our customer with no extra cost.

Moreover, if customer want us to produce the injection molding parts for them, the plastic tooling cost will be very lower, because we will never earn any profits on the injection moulding tool manufacturing, or even we can bear come plastic tooling cost, this is depending on the number of parts customer requirement, this is the best options for you to increase your market by minimum investment.

This is not the end if you choose the number three option, when you have finished number of parts production, we can return all of the injection moulding tool prices back to you, you can use this price to order plastic injection molded parts directly, of course, this is depending on the quantity of the parts you have been produced. If you want to know more about this solution? You are welcome to contact us or send your requirement for quotation, you will have our professional team to support, we offer you the best price and solution for your project, and we never share your data to any others.

What are you waiting for? Call us or send us an email.

2019年6月11日/by admin

cold runner mold, High Gloss Plastic Molding Parts, Injection Molded Plastic, Injection molds, plastic mold, plastic mold polishing, plastic molded parts, plastic mould

Plastic mold polishing

2019年4月26日/by admin

Injection Mold Maker, plastic mold, plastic mould

High Volume Injection Molding

High volume injection molding is a critical process in manufacturing large volumes of plastic parts in a short time. It’s a straightforward process involving two key steps: acquiring the mold and then using it to make parts. This systematic approach helps cut down the cycle time and ensures that the output is standardized and, hence, is cost-effective for large projects due to economies of scale. Also, it has versatility in the choice of material since it can work with almost all types of plastics.

Quality control is also given a high priority at Sincere Tech when it comes to high-volume injection molding. The emphasis is made on the quality and accuracy of each part made of plastic. First of all, we focus on cooperation with clients to identify their requirements for the design, materials, and production. Our expert team then uses CAD models to design custom injection molds, and then we test them to ensure that they meet the required standards before the actual production process is initiated.

In this case, we use modern machines and fully automated production lines to ensure that we produce high-quality products with efficiency and accuracy. There are several quality control checks that are done at the various stages of production; this includes checking the raw materials before they are used and checking the final product before it is sold. The performance is also monitored through the use of continuous data analysis to achieve the best results at every stage of production.

High Volume Injection Molding Materials & Technologies at Sincere Tech

Our high volume plastic injection molding services at Sincere Tech involve a variety of materials, including thermoplastics like PE, PP, PS, and PVC, and thermosets like epoxy, phenolics, and melamine.

Accuracy in molds is very important when it comes to manufacturing high quality, identical injection molded parts in large quantities. We employ state-of-the-art CAD/CAM technologies to design and develop molds specific to each component’s specifications. Automation is very important in our high production injection molding process to reduce cycle time, increase productivity, and reduce manual handling for quality production.

Custom High Volume Injection molding at Sincere Tech

Sincere Tech is a company that deals with high volume custom injection molding of plastic products. Our services range from prototype to production quantity levels. We pay close attention to the management of our high-volume molds regardless of the number of shots, cavities, or the number of shots required. Such attention to detail ensures that every aspect of mold design and manufacturing is in harmony with the project objectives and schedule.

The approach that we have adopted with our clients is to design and engineer the products and, at the same time, create high volume cost effective molds. Sincere Tech provides services such as low volume molding, insert molding, and pad printing for different industries such as medical, electrical, hand tools, communications, and automotive.

We employ hi-tech computerized systems and mechanical gadgets to facilitate production and quality control. Our services range from designing to delivering the end product, thus offering a complete plastic injection molding solution for every project.

High volume injection molding at Sincere Tech also ensures that the manufacturing process of the plastic parts is fast and cheap, and the quality of the products is always high since they are all alike. This commitment to quality improvement means that no matter if an order is for a few prototypes or a million production parts, the quality is the same. For high-quality and fast, high-volume molding services, please contact our specialists at Sincere Tech.

Three Volumes of Injection Molding

Different plastic injection molding providers often focus on specific volume categories:

Small-Volume Plastic Injection Molding: These providers are most suitable for projects with less than 10,000 parts. They usually employ aluminum tooling for short time production runs. Small-volume specialists are great for; Small-volume specialists are great for:

Prototyping injection molding: Cheap and fast for determining the feasibility of designs, form, fit, and function, and for prototyping before production.

Low-volume injection molding production: It is a very efficient and economical process for applications such as specific medical devices that are not required to produce hundreds of thousands of parts.

Market testing and pilot production: Perfect for making a transition from short-run production to volume manufacturing.

Medium-Volume Plastic Injection Molding: These companies specialize in medium to high volume production of between 10,000 and 750,000 parts. They use aluminum or pre-hardened steel tooling, depending on the order size.

Large-Volume Plastic Injection Molding: These providers focus on orders over 750,000 parts and can manufacture hundreds of thousands of parts with precision and quality. They employ only the best hardened steel molds and incorporate modern technology, and they usually do not take orders below 750,000 parts. This category includes:

High tolerance precision, low scrap loss, and low cost.
Little post-production work is required because of the technology used and the quality of molds.

Considerations for Choosing Between Low and High-Volume Injection Molding

Choosing between low and high-volume injection molding depends on several factors that should be considered carefully:

Production Needs: If the production requirement is less than 75,000, then low-volume injection moulding is often the most suitable because of the cost advantage.

Design Complexity: In the case of special or prototype designs, low-cycle injection molding is useful in the economical testing and development of the tool.

Production Cost: When costs increase during production, prototyping, and automation can be advantageous to a business. High volume injection molding becomes more possible in such cases as it greatly cuts the cost of per unit production.

Set-Up Budget: It is possible to begin with low volume injection molding, especially if there is a limitation on the amount of capital to be invested in the molding process since high-volume molding calls for a huge investment at the initial stage. Also, high-volume processes using steel tools will result in long cycle times and high material costs.

Advantages of High-Volume Injection Molding:

Cost-Effective Production: Flexible and fast, which reduces labor and material expenses.
High-Production Output: Can manufacture many parts at once to address the variations in demand.
Consistent Quality: This guarantees that the parts are accurate and similar, with very small variations and complex features.
Versatility in Part Design: It can produce various designs and shapes and work with different geometries.
Reduced Waste: Reduces the amount of scrap and waste since injection parameters are well controlled and the molds used are of high quality.
Increased Production Efficiency: Very low level of manual intervention and is mostly operated through computer systems.

Disadvantages of High-Volume Injection Molding:

High Initial Investment: This involves a high initial cost for mold design and construction.
Long Lead Times: The creation of molds can take a long time since the design and production of molds require time.
Limited Material Choices: Some plastic resins may not be ideal for high-volume manufacturing.
Limited Design Flexibility: Accurate process that restricts the geometry of the part, especially for intricate shapes.
High Maintenance and Repair Costs: Maintenance and repairs of molds are often costly and may require frequent replacements.

Material Types Used In High Volume Injection Molding

High volume injection molding requires careful consideration of the type of material to be used to get the best results. Polypropylene (PP) is the most popular type due to its low cost, high strength-to-weight ratio, and high impact resistance. It is used in the automotive, packaging, and consumer goods industries. On the other hand, Acrylonitrile Butadiene Styrene (ABS) has the properties of being tough, impact resistant and smooth finish used in toys, automotive parts and electronic devices.

Polycarbonate (PC) is highly valued for its ability to withstand impact, transparency, and heat stability, which makes it suitable for the automotive, aerospace, and electronics industries. Polyethylene (PE), which is flexible, hard, and chemically resistant, is used in packaging, plastic bags, and agricultural films because it is light and can be molded in many ways.

Polyethylene Terephthalate (PET) excels with its strength, transparency and barrier properties, making it suitable for use in beverage bottles, food packaging and protective packaging. Finally, Polystyrene (PS) is cheap, lightweight and insulating, which makes it ideal for use in disposable cups, packaging and insulation. Each of them meets certain requirements, which guarantees the quality of the final product in large-scale injection molding.

Machine Types Used for High volume Injection Molding

Injection molding machines are used in high-production processes, where the plastic material is injected into a mold to produce different parts.

Hydraulic Injection Molding Machines are machines that use hydraulic pressure to operate and are characterized by high production rates but slow cycle rates, thus appropriate for high production volume but low cycle time applications. Electric Injection Molding Machines, which are driven by electric servo motors are very accurate and fast and are suitable for applications in areas such as the production of medical equipment and electronics.

Hybrid injection molding machines are a combination of hydraulic and electric machines, which are efficient, fast and offer high production rates, thus suitable for high production requirements.

Two-Shot Injection Molding Machines are used to make parts of two different materials or two different colours and are suitable for making parts with high complexity.

Multi-Material Injection Molding Machines have multiple injection units for the processing of different materials at once to meet the requirements of parts with different properties such as strength, durability, and flexibility. Liquid Injection Molding Machines are specifically designed for producing LSR parts, and the parts are very accurate and strong, making them ideal for applications such as medical equipment and automotive parts. These machines are used to meet particular production needs and help achieve high-quality and fast high-volume molding.

Design Considerations For High Volume Injection Molding

Several factors need to be taken into account when designing a plastic part for high-volume injection molding.

First, the wall thickness should be uniform so that the cooling process will not be a problem and the part will not warp. Thin walls are suitable for mass production as they use less material and time as compared to thick-walled parts that provide extra strength where required.

This is also true in the size and shape of the part, as it determines the time taken in production. Shapes that are large or complex may take longer cycles or specialized equipment which increases the cost. The more complex the design, the more difficult it is to produce many items; therefore, geometric patterns are preferred. Draft angles should also be incorporated into the design to enable easy removal of the parts and to prevent problems such as cracking or deformation during production.

The location and size of gates are very important. Gates should be positioned so that they will not compromise the structure of the building and be of the right size so that they do not interfere with the flow of materials that are to be transported. Material selection should take into account the requirement of the part to be manufactured in terms of strength, durability, and flexibility.

Surface finish matters too. The surfaces of parts should be polished and should not contain any imperfections such as warping or sink marks. Some of the factors that help in attaining a smooth surface include proper gate placement, mold design, and the choice of material. Lastly, tolerance, which is the permissible deviation in the dimensions of the parts, should be given due consideration right from the design stage so that the parts can be manufactured accurately and with a high degree of precision.

Common defects In High Volume Injection molding

In high volume injection molding, there are several types of defects that may affect the quality of the end product. Sink marks are those marks which are formed due to the uneven distribution of material during the cooling process and can be avoided by redesigning the part and ensuring that the wall thickness is uniform. Distortion, which results in part distortion, can be prevented by regulating the temperature of the mold and by including features that reduce stress.

Flash excess material that protrudes from mold joints is caused by misalignment or lack of clamping force and can be avoided by correct alignment of the mold and sufficient clamping pressure. Short shots and incomplete filling of the mold cavity due to problems such as low injection pressure or blocked gates can be solved by adjusting the injection parameters and gate design.

Finally, weld lines, which are apparent signs of meeting flow fronts, can be avoided with proper design of the mold and injection parameters to ensure equal material distribution. These strategies assist in ensuring that the quality of the products produced by the high volume injection molding is high.

Tips To Maximize the Productivity of High-Volume Injection Molding

Problem-solving in high volume injection molding is crucial to ensure the quality of the end products. Here are some practical tips for addressing common issues:

Check Machine Settings: Start the problem-solving process by checking the injection molding machine parameters. Ensure that the temperature, pressure, and cycle time are correctly set depending on the material to be processed.

Address Material Flow Problems: Pay particular attention to any problems that may arise in the field of material flow. Defective settings of the machines or the presence of barriers in the flow of materials can also be a hindrance. Make sure that the material does not jam in the machine during the process.

Combat Warping and Shrinkage: Distortion and shrinkage are typical issues in large-volume injection molding because of non-uniform cooling. Reduce the cooling time depending on the material properties to prevent warping and shrinking of the part.

Prevent Air Traps: Air locks are formed when air is locked in the mold cavity, and this results to the formation of voids or bubbles. Make sure that there are no trapped air pockets in the mold so that they do not influence the final product.

Monitor the Process: Ensure that you monitor the whole injection molding process very closely. The following are some of the best practices that can be followed to ensure that the problems are detected early: This proactive approach enables one to prevent possible issues that may affect the quality of the products.

Conclusion

If you are still unsure of which molding process to use, you should consider seeking the help of a professional. However, to get the best results, it is imperative that the selected injection molding process is in sync with the production requirements. Any difference can lead to an interruption of the production process, and this, on its own, increases the cost greatly.

They may cause disruptions that hinder production, and this, in turn, has an impact on your ability to produce quality products at reasonable prices. This can, in the long run, affect your customer relations and their satisfaction levels.

Sincere Tech is one of the leading China high volume injection molding companies in the Plastic Injection Molding industry, and it has always been appreciated for its good communication with customers and clients from all over the world. They can advise you on what you need to do and how to do it to lead you to the right decision concerning your production needs.

2019年4月22日/by admin

China mold, 2-Shot Injection Molding, custom injection molding, Gas assist moulding, hot runner molding, Injection Mold China, Injection Mold Maker, overmolding, plastic injection mold, plastic mold, Plastic mold china, plastic molding, plastic molding china, plastic mould, two shot mold, Two-Shot molding

Plastic Injection Molding Service

Looking for plastic injection molding service?

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 molding services

Benefits of plastic injection molding service

The benefits of plastic injection molding service include:

High volume production: Plastic injection molding is ideal for high volume production of identical parts, as the mold can be used multiple times.
Consistent quality: The process is highly repeatable, which leads to consistent quality of parts produced.
Complex shapes: Plastic injection molding can produce complex and intricate shapes that would be difficult or impossible to achieve with other manufacturing methods.
Material flexibility: A wide variety of plastic materials can be used in the injection molding process, including thermoplastics, thermosets, and elastomers.
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.
Precision: The process can produce parts with high dimensional accuracy and minimal tolerance variation.
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.

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: 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.

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.

2019年4月19日/by admin

Injection Mold China, injection molding, Injection Molding China, Injection molds, plastic mold, plastic molding, plastic mould

Injection molding molds

2019年4月17日/by admin