Mold design

 

mold design

• Injection molds design
• hot runner system
• Solidworks software
• Medical mold project
• Product description: Custom injection molds design services.-Rapid prototypes molds, injection molding. Plastic thermoforming, low prices fast turn around in Shanghai, China

Why do you need a china injection molding company to help you do a design job?

Because we can provide our clients with professional solutions to the industrial/mold design of new products. Let us help ensure your product can be manufactured. In the past 10 years, a lot of clients need such a design service. The customer will take some samples from the exhibition or competitor side. We will copy and change the style, structure from the old sample. Or our clients only have an idea for a product and they need to turn their idea into a real 3d model. During the design process, we will change the parts easier for molds tools making in the future.

It is really enhancing the value of products by the most economical investment and turning the solutions into the "Design keys" in practice.
Injection-molded plastic parts can be designed to provide good looking products that consumers want to buy at no additional cost over boring products that have no sales appeal. To do this you need the right product concept. The right people, and the right tools. We have the capacity to treat Solidworks, Pro/engineering, UGII, Catia famous 3D software.

Our experience and expertise in 3D software

With our experience and expertise in 3D software, technologies can help you in 3D Plastic product design. Our technology-based services in product structure analysis. Injection mould design and making, injection molding to an extra edge to enhance our core plastic product design capabilities. We can assist you with plastic product designing from the conceptual stage. Or if widespread modifications are required to go into the process. Working closely with rotational molder we ensure a successful launch of your product.

Our Design team with high-caliber, teamwork spirit, and innovation capacities. Our service is not only a concept for the design. But also considers really mould making in the future which will realize a material leap from initial ideas to final products.

Contact us now and you give get extra service not only simple plastic product design!

Design tips:

Sink mark

A Sink Mark can be defined as depression. resembling a dimple or groove.
Caused by the excessive localized shrinking of the material after the part has cooled.

How to reduce sink mark, design thickness consistent

However, there are several aspects of tooling design available to the toolmaker that can influence the sink. Cooling-channel design, gate type. And gate size can have a wide variety of effects. For example, a small gate such as a tunnel gate freezes off much quicker than an edge gate. Premature gate freeze-off will reduce the available packing time in the cavity. Which can increase the likelihood of sink marks?

 

Prevent Warping

Warp in injection molded parts is caused by uneven stress. There are only 4 primary plastic processing variables in the injection molding process. – Cavity pressure, melt temperature, fill rate, and cooling rate.
The general rule changes design Reduce thick and thin transition. Also, use ribs design instead of a big thickness area.

A draft angle of injection molds design in China

Plastic parts design a draft angle to prevent the part from sticking on the mold and the ejector marks a small push caused by the molding process. In addition, you need to have done enough product surfaces with polish and draft angles. Do not forget the ribs should not exceed 60% of wall thickness.

 

Now plastic products Manufacturing on the Rise in China

 

Today’s plastics are one of the most used materials  in China

The world of plastic products manufacturing has come a long way since the 1860s. And rapidly growing companies like CN-MOULDING are proof. While John Wesley Hyatt may not have realized it when he first experimented with cellulose nitrate in the late 1800s.The substance he discovered has since become a major part of everyday life in China. Today’s plastics are one of the most used materials on a volume basis in China. Industrial and commercial life. They are broadly integrated into today’s lifestyle and make a major. Irreplaceable contribution to virtually all product areas. The two main types of plastics are thermoplastics and thermosets. The first of which is used to create many of the most common industrial, consumer. And commercial products on the market today.

What turns the plastic into a useful product is a process called injection molding. A high-production process originally launched in the late 1940s.  Here’s how injection molding works: Manufacturers inject the thermoplastic into a mold where it can set. And form into the size and shape desired. While the process is fairly simple in concept. It offers a wide range of advantages. Like higher production rates, lowered labor costs, and reduced waste. And today’s businesses are increasingly moving their injection molding back to China. To companies like CN-MOULDING. To experience further benefits like lowered freight costs, faster turnaround times, easier face-to-face meetings. And quicker access to inventory. Choosing to do plastic product manufacturing in China. Means freed-up resources, lower lag times. And more convenience when making product adjustments or changes.

China plastic products  manufacturing is booming

 “CN-MOULDING plastic products manufacturing provides all kinds of benefits to world companies,” said Kenny Han, a vice president at CN-MOULDING. “. It’s much simpler to communicate, make changes, view samples, and so on. Not to mention cheaper and more efficient in the process.” This increasing push for onshoring shows that China’s plastic products manufacturing is booming. And there are other pieces of evidence in place, too. Injection molding and 3D printing is a hot trend in the plastics industry today. Being used for everything from military equipment to medical devices. Network World says 3D printing is “the hottest new technology on the IT landscape,” Offering further proof that China plastic manufacturing continues to grow.

Robotic end arm Tooling design and manufactur is improving

 As injection molding machine technology and the rapid development of science and technology. The plastic molding factory automation demand is higher and higher, so the injection robot quickly gained popularity. It is mainly used for injection molded parts by the injection molding machine, workers who use this device can reduce workload, improve labor productivity and automation level in the molding workshop. Plastic injection molding speed and efficiency are equivalent to save cost, so the robot will play an important role in improving the manufacturing process. From simple port choices to complex automation machinery, the plastic molding industry is using this automation trend. Through the continuous development of injection molding manipulators, can lead to the development of automated plant auxiliary equipment such as conveyor belts, thus forming a larger industrial chain, promote the development of the injection molding industry.

Robotic end arm Tooling of mold design and development from the engineering department in our company

Our plastic molding manufacturing team to develop Robotic end arm Tooling CAD drawings of the parts. After the complete design will be sent to the factory specialized tools parts manufacturers. Robotic end arm Tooling and electronic, pneumatic, and sensors together, in order to meet the specific processing requirements. It will be all of China injection mold companies development inevitable trend.

In CNMOULDING company, 16 injection molding machine is equipped with a Robotic end arm Tooling. Robotic end arm Tooling’s basic operation controlled by NC (numerical control), received by our company staff programming controller’s instruction. NC code tells the robot how to perform the desired task, such as accurate, complex packaging. Our custom engineering solutions can be quickly produced, improve quality, meet some stringent technical requirements.

Injection molding is a complex geometry for resin surface finish perfect parts. However, many projects are faced with unique challenges.

We focus on bulk-forming and often use a hot runner system in our machines. This method can not only improve the cycle time of the hot flow path but can also enhance the overall quality. Sometimes, in the cold runner applications, the softer resin materials may lead to the challenge of recycling. In most operations, when main components are wrapped, the port is added to the collection of material, you need the extra time. CNMOULDING developed an innovative approach, several of which port can be cured at the arm, and continue to produce parts.

In Robotic end arm Tooling development and research, we have done a lot of work, but the benefits are many. Carefully designed robot technology can help speed up the processing time. Moreover, they improve the quality of the whole parts and reduce the cost.

How plastic injection mold company works

 

How plastic injection mold company works

In business since 1997, CNMOULDING is a leading China manufacturer of high-quality plastic injection molding products and services. With manufacturing plants in Shanghai. We provide molded plastic products to companies coast to coast throughout the nation. What’s more, we provide these products through a comprehensive end-to-end quality assurance system that’s unique to the industry. That means when you come to us for custom plastic molded parts. You can expect the kind of quality that means efficient, affordable, turnkey plastic injection products time and time again.

[caption id="attachment_2931" align="alignnone" width="1410"] plastic injection mold company works[/caption]

The plastic injection mold company

Plastic injection molding is the preferred process for manufacturing plastic parts. Injection molds are used to create many things such as electronic housings, containers, bottle caps, automotive interiors, pocket combs, and most other plastic products available today. Plastic injection molds are ideal for producing high volumes of plastic parts. Due to the ability to make multi-cavity injection molded parts. Where multiple parts are made with one cycle. Some advantages of injection molding are high tolerances, repeatability. A  wide range of material selection, low labor cost, minimal scrap losses, and little need to finish parts after molding. Some disadvantages of this process include an expensive tooling investment and the need to prototype. Some custom complex parts may encounter problems during the injection molding process such as warp or surface defects. Therefore, injection molded parts must be designed with careful molding consideration.

We have rich experience

We have helped our clients to work their innovation ideas out with our full experience in injection mold and plastic injection molding. The most important difference between the price of the USA and China is China's price is much lower than the USA price. That is why Apple Inc assembles its iPhone series in China.

Anyway, your choice should be based on the requirement of your product and your company's budget. The right price is from the right manufacturer. Sending your drawings or pictures to us? Then we can evaluate your project and give you our professional suggestions.

Let CNMOULDING meet your most challenging molded plastic project specifications. From brand new jobs to in-progress projects, we offer plastic injection molding that gets the job done. Whatever your specific job demands, you can count on us for thermoplastic injection molded plastic and precision insert molded products. Whether your industry is food and beverage, medical, dental, automotive, packaging and display, or another field that relies on plastic in its manufacturing, packaging, or distribution. We specialize in production level quantities from 5,000 pieces to 5,000,000 pieces annually.

We offer a different approach to plastic solutions

CNMOULDING takes the basic molding process used by other manufacturers one step further. We take the opportunity to intelligently test and re-test the quality of your plastic molding products at each vital step along the way, from design to assembly, and one last time before we ship the product to you. This emphasis on quality assures you the best possible product. We're proud of our reputation for top-quality plastic products and services with molding buyers across the United States.

China will have to go a long way to instill reliable confidence in their ability to perform as a capable OEM supplier. There are just too many instances of poor quality, delivery, service, and technical support. It just seems that whenever China is involved, the only thing that matters to them is money.

As a Chinese plastic injection mold company for plastic injection molds, production, and complete turnkey solutions. I know that my team does their due diligence every day to ensure the customer is satisfied. We are in this as a business to make money (after all that is the aim of any business). But if the customer is happy with our product and service he/she will return to do business with us again and even recommend us to other companies.

Our emphasis on quality

We train our staff of technical and production specialists to accept nothing less than absolute quality as they guide your project through design, development, manufacturing, and shipping. We not only meet your requirements, but we actively look for ways to improve your product and thus save you money and time.

Our quality control methods are so effective that CNMOULDING offers "mold takeover." This is a service where we evaluate, improve, and complete any existing molding job you may have that isn't meeting your requirements. We'll put a new set of eyes on the problem and find ways to improve the design.

You tell us what you want we listen

At CNMOULDING, we listen to you, our customer. We don't try to pigeonhole your problem into a pre-set plastic molding solution. We take the time to learn about your business, your challenges, and your plastic needs. Only then do we propose a solution.

When you work with CNMOULDING, you automatically get the benefits of our commitment to a clean work process, our high-level material, and production tolerance standards, and our dynamic systems approach to each process, from design to delivery.

CNMOULDING-injection mold company

 CNMOULDING-injection mold company offers a plastic injection molding service and specializes in various plastic molds. automotive, home appliances, electronics, as well as general industrial OEM applications. Our company covers an area of more than 2000 square meters workshop, surrounded by convenient transportation. At present, our group reaches more than 100 employees and capital assets to more than 8 million RMB. Our capacity is 40-50 sets of mold per month.

CNMOULDING-injection mold company's mission is to be a professional, trustworthy, and creative toolmaker and injection molding supplier. We always keep the Layout at the top level and introduce a modernized management system. Go in for zero default. Make sure quality and techniques are in the highest way. Therefore, we dedicate ourselves to making innovation and progress and continue to be your better partner. Enhance our technology and accumulate experience in mold building, injection molding, print, paint, etc.

1, We provide direct factory prices and make costs transparent.

As you know there are more than 5000 trading companies in China, but some of them concealed their property very well. It is hard to tell a foreigner. normally they will make a profit of 30%.so we show the detailed cost on our website, Most traders can’t quote the price at this level. But these prices are a normal price for us and have a proper profit.

2, We focus on providing a one-stop service for small and medium-sized companies.

We are a middle size mold making and injection molding company. It is also one reason for the good price. We don’t need to pay the huge administration fee compared to the big factory. We got an ISO9001-2008 certificate, which ensures our quality same as the big factory. As everyone knows china mold is much cheaper than in the USA or Europe but injection molding will be more expensive because the resin price in China is 50% higher or double. But if you only produce 1,000-50,000 pcs. then China will have a big advantage. Moreover, we can make print, paint, and assembly in the house.it also saves a lot!

3, Our Sales Manager has rich experience in engineering.

Most of the companies will arrange sales girls to contact customers, they are lack mold knowledge, just transfer e-mail and said some holiday words but will get good commission(3-5% total price. Of course, the cost will be calculated in their quotation). our Sales Manager will handle the job for both the sales manager and project manager. It will make sure our professional service gets through the whole process and the communication is more efficient.

Mold design:

The high-quality mold is the core business of CNMOULDING. We have 10 special mold designers, who have rich experience in resin Character and mold structure. and take each case seriously,  before designing the start, our designer will run Mold Flow Analysis and attend a technical meeting for each mold with a tool shop and injection shop. to avoid potential manufacturing problems and troubleshoot. all of this is a strong guarantee of our high quality and short lead time, our Services include: Product Design, Appearance Design, Structure Design, Mold Design (2D & 3D), DFM (Design for Manufacturability), Mold Flow Analysis

CNMOULDING-injection mold company project Management:

Project management is the key to the success and quality of the products, All our Project Engineer not only has rich knowledge in tooling and injection molding but also speak good English. The project engineers will be responsible to follow up on the tooling process and timely reporting to the customer on any issues and progress of the project he is handling.

All we do want is to provide:

1, On-Time Delivery

2, Assuring customer’s project is produced to customer’s standards and requests

3, Anything communicated in a timely and clear way

4, Complete project management and support from concept to final part inspection and approval.

The Mold Standard:

Mold Steel: ASSAB(Sweden), DAIDO(Japan),FINKL(America),AUBERT & DUVAL(France), Thyssen(Germany), LKM (China)

Mold Base: EMP, DME, HASCO, FUTABA, LKM.

Hot Runner: MOULD MASTER, SYNVENTIVE, HASCO, DME, YUDO, INCOE

Standard Parts: DME, HASCO, LKM, HEB, STRACK, OPITZ

Texture: VDI 3400, Mold-tech, Yick Sang, Tanazawa, etc

Software:Pro/Engineer,Solidworks,AutoCAD,Moldflow, Unigraphics, CATIA, MasterCAM

Mold making in-house :

Our Mold shop is well equipped with advanced machines, such as High-speed CNC machines, Slow wire cut machines, and Mirror EDM machines, they are all imported from Taiwan, Switzerland, or Japan. they will make sure the mold is manufactured with high precision and a good finish. moreover, all processes in the house will ensure the short lead time of mold making, our shop has 30 skilled toolmakers, most of them have more than 10 years of experience in mold making, they are familiar with all machining processes, cost of each step and potential troubleshot for mold. I think they are the biggest treasure of our company, their experience, and hard work will be guarantee high-quality mold at a reasonable price.

The concept of plastic injection molding

Plastic Injection molding is used to produce many things such as wire spools, packages and bowls, bottle caps, automotive parts, toys, optics, some musical instruments (and parts of them), one-piece chairs and small tables, storage containers, mechanical parts (including gears), and most other plastic products available today. Injection molding is the most common modern method of manufacturing parts; it is ideal for producing high volumes of the same object.

Injection molding uses a ram or screw-type plunger to force molten plastic material into a mold cavity; this solidifies into a shape that has conformed to the contour of the mold.

Our injection shop:

CNMOULDING is one of the famous plastic injection molding companies in China. Our injection molding shop is equipped with 20 sets of high-precision injection molding machines ranging from 50ton to 650 tons, they are mostly imported from Taiwan or Japan. Our injection shop runs 24 hours a day, 7 days a week automatically production services.

We are experienced with various plastic products for automotive, medication, lighting, sports equipment, home appliance, and agriculture. credited an ISO9001-2008 certificate since 2004, also has 5 IPQC people watch the production and check the quality within 24 hours, it makes sure our production keeps a stable quality, in the past 15 years, our company already win a good reputation with stable quality and reasonable price. keep a good business relationship with 50 customers, especially from the USA and Europe

In order to produce save costs and time in the process of plastic injection molding and improve the production efficiency of the injection mold. Mold manufacturers increasing the use of new materials and new technologies. And these new materials and new technologies to a certain extent, represent plastic injection mold manufacturing as a new trend.

Precision Redefined: The Advantages of Our CNC Machining Center with ATC

 Our new CNC Machining Center, equipped with an Automatic Tool Changer (ATC), represents a significant leap forward in manufacturing capability. The true precision advantage of the ATC lies not just in speed, but in its ability to fundamentally enhance process stability and guarantee superior final part accuracy.

Here are the core benefits driving this new level of precision:

1. Eliminating Human Error for Unwavering Consistency

Traditional Manual Change	ATC Advantage (Automated)
Inconsistency: Manual handling introduces variability—uneven tightening force, potential contamination, or operator fatigue—all leading to tool runout and inaccuracy.	Repeatability: The ATC executes every change with identical, programmed motions. It consistently cleans the taper, grips, and locks the tool, ensuring perfect, repeatable positioning.
Impact: Random human errors are eliminated, guaranteeing superior tool-holding rigidity and minimal runout, which is critical for tight tolerances.

2. Enabling "Complete Machining in a Single Setup"

Manual processes force interruptions for tool changes, introducing potential cumulative errors from thermal drift or workpiece shifting.

The ATC overcomes this bottleneck by completing all required operations (milling, drilling, tapping) in one continuous, automated cycle without removing the part. This is critical because it:

• Maintains a Single Datum: The workpiece remains fixed to a single zero point, preventing the cumulative errors associated with re-fixturing.

• Guarantees Geometric Integrity: It reliably ensures high positional accuracy and tight geometric relationships between all features (holes, slots, surfaces) on the finished component.

3. Ensuring Flawless Batch Consistency and Process Stability

For batch production, the ATC ensures the entire machining process, including the tool changes, is perfectly repeatable from the first part to the thousandth. This unparalleled process stability removes human variables, guaranteeing high consistency in dimensions and tolerances across the entire production run.

4. Supporting Optimized and Adaptive Machining Strategies

The ATC makes advanced strategies practical:

• Dedicated Tooling: It allows for dedicated "roughing" and "finishing" tools. The finishing tool remains sharp and unaffected by the wear of the roughing process, directly resulting in a better surface finish and tighter tolerances.

• Adaptive Control: It enables the use of in-process probing and automatic tool compensation, facilitating continuous adaptive control for real-time accuracy adjustments.

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Summary: Our Precision Commitment

Key Advantage	Benefit to Your Project
High Repeatability	Consistent tool positioning and minimal runout.
Low Error Accumulation	"One setup" machining prevents error stacking.
High Process Stability	Human variables are removed from the production cycle.
Superior Process Capability	Enables optimal dedicated finishing strategies.

This new investment ensures we can provide our customers with more precise and reliable mold manufacturing services than ever before.

Precision Integration, Unlimited Innovation: Your Partner in Rotary Overmolding Solutions

 

Precision Integration, Unlimited Innovation: Your Partner in Rotary Overmolding Solutions

In today’s demanding market, where product excellence is non-negotiable, relying on single-material designs is often insufficient to meet stringent requirements for functionality, aesthetics, and tactile quality.

Are you facing the limitations of traditional processes?

• Efficiency Bottlenecks? Struggling with slow cycle times and weak interfacial adhesion inherent in secondary injection molding?

• Quality & Environmental Risks? Concerned about inconsistent bonding, poor reliability, and the environmental drawbacks of adhesive joining?

• Aesthetic Compromise? Detracted by visible assembly gaps that undermine a product's premium appeal and long-term durability?

The solution is not just a process—it’s a paradigm shift. What you need is an advanced manufacturing strategy supported by a specialized mold engineering partner.

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Why Choose Rotary Overmolding? A Leap Beyond Traditional Manufacturing

Rotary two-shot injection molding is the convergence of precision engineering and innovative design. By leveraging a fully integrated mold system with a high-precision rotational mechanism, this technology seamlessly co-molds two dissimilar materials (e.g., rigid and soft-touch polymers) into a single, unified component within one continuous cycle.¹

Key Advantages We Deliver:

• 🛡️ Superior Product Performance & Reliability: We ensure a robust, durable bond through molecular-level material compatibility and mechanical interlocking structures.² This significantly enhances structural integrity, longevity, and functional reliability between soft and hard components.

• ⚡ Enhanced Production Efficiency & Cost Control: Consolidating two molding stages into a single automated operation dramatically reduces cycle time, minimizes labor input, and lowers operational costs.³ This supports scalable, high-volume manufacturing, making it the ideal, cost-effective solution for mass production.

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Decades of Expertise. End-to-End Solutions.

With decades of dedicated experience in developing advanced rotary overmolding molds, we are not just fabricators—we are comprehensive solution providers spanning:

• Concept Design

• Prototyping

• Precision Tooling

• Full-Scale Production Support

Proven Implementation Across Critical Industries:

Industry	Applications
Consumer Electronics	Premium smartphone cases, TWS earbud cases, controllers, and smart wearable straps.
Automotive Components	High-comfort steering wheels, gear shift knobs, ergonomic control buttons, and advanced sealing profiles.
Power Tools & Appliances	Ergonomically optimized handles for power tools and heat-resistant grips for kitchen appliances.
Medical Devices	Anti-slip hearing aid housings, patient-comfortable respiratory masks, and precision surgical instrument grips.