The Internet provides custom mold making service as a demonstration version

The Internet provides service of custom mold making, cnmoulding can be used as a demonstration version.

Companies to provide plastic molding services in various industries, such as automotive, medical, transparent products, we use the Internet and customers around the world to keep in touch.

Rely on the production base in China, in the use of the latest technology to develop and provide customers with plastic mold manufacturing around the world.
According to customer specifications custom mold making , because of  use the Internet to reduce time and cost for mold manufacturing design and engineering.
Through the Internet e-mail to send drawings, SKYPE for online communication, to provide customers with a complete set of plastic injection services.

Efficient work system

After receipt of the drawings, tooling department submit offer within 12 hours for the project, and the tooling engineer received from customers of the purchase order, to provide 3D mould design drawings within  2-3 days, mold flow analysis, and according to customer needs the file format by e-mail to them.
Once the drawing is approved by the customer, they begin to make the mold.
When the customer approves the plastic molded sample, according to the customer’s request, the mold will send to the port of the world.
Because of the popularity of the Internet, the work is just as easy as you work with door neighbor.
The company’s owner Kennyhan revealed that this whole process from the mold development and final delivery has become the standard production process for the export of the mold industry in China.

Internet based mold development is faster, strictly comply with the customer’s account, to provide qualified injection molding products on time to reach the customers hand, there is no one minute delay.
Strict drawings and sample approval process to ensure the delivery of plastic products in full compliance with customer requirements.
In addition, we also provide a complete freight forwarding, either by sea or by air, express delivery services will be delivered to our products in any place in the world.

All kinds of supporting logistics support work

Cnmoulding molding maintains a systematic and transparent program that enables customers to control the quality, cost and production cycle of the product.
Faster approval process will be faster plastic mold design and manufacturing with guarantee.
The company has a wealth of injection mold design experience, to provide customers with the product re-design, can significantly reduce the cost and cycle of mold manufacturing.
This is the cause of every industrial customer can rely on our production technology and product quality.
Using the Internet, Cnmoulding as an industry standard, and constantly provide convenience and a simple way to get customized tooling manufacturing for customers from all over the world

Accessories for your new iPhone 7 case

Accessories for your new iPhone 7 case

We learned about your iPhone 7 ,mobile phone business from the market.
And the services we provide may be a small part of your new iPhone, our creative fast mobile phone accessories custom service independent of any other Chinese plastic injection mold manufacturer.iPhone case plastic part

If you pick up a new iPhone 7 you intend to do so, then you may want to know what you should go with it. After all, no headphone jack, a new camera, and a new version of iOS 10, you may also need to have a shell with your unique personality.
You have a picture of you, your child, your parents or your pet. You may choose any color you like. This is what we are going to do and our service.

A new iPhone 7 case iPhone case iPhone cover

the new iPhone 7 looks very beautiful, but no difference between the other iPhone 7, which is not an independent personality of what you want. It is still necessary to add some special decoration, which is the role of mobile phone shell accessories, gorgeous color, attracted our eyes.

You can give us the color you need, then you will get exactly the same color product, and your expectations are exactly the same.If you cover up your new phone perfectly well, Cnmoulding customized “sturdy armor” chooses the most rugged Polycarbonate plastic materials.

High precision injection molds manufacturing, ensure the armor completely fit the mobile phone protection, comprehensive and efficient, to avoid damage caused by any accidental appearance of mobile phone, my friends think you have been using a new mobile phone so far, iPhone case accessories we produce, without any fault fade phenomenon.

Thin clear transparent iPhone caseiPhone case design by china injection molding companies

Has a thin transparent iPhone.
If you choose black iPhone 7, you can gaze at the smooth black surface, and don’t leave your mark on it.
Ultra thin clear transparent mobile phone protection shell will be your first choice, ultra-thin or clear transparent plastic injection molded parts, are technically demanding plastic products, the entire mold development process can not be 0.1% of the error, any solder joints on the mold are the products of regret, china injection molding companies dare to challenge this difficult mold production, if need to be completed in a short period of time, it is impassable challenge, but when the custom ultra-thin transparent iPhone 7 you need, we will give you behind you. To ensure a comprehensive technology, designed for thin transparent iPhone Accessories production team, we accept  new custom drawings come at any time.

Molding Flash & Flashing is one of the most important potential problems.

Flash & Flashing occur

Flash can occur during injection filling  or during the pack/hold stage, and it can occur any kind of conventional parts ,especially easy happen of thin-walled parts with high MFI material . Discovering in when flash occurs helps to be responsible for the problem simplification . A simple test is to bring the pressure to the minimum the machine allows, Limitations lie is the plastic pressure  should be below 500 psi . The aim is to see the effect of just barely filling the cavity. First step is injection fills 92% to 99.9% of the part, but the cavity is full then stop there. At the minimal pressure level we can easy to inspect  If there is flash happen on the short shot,then we should do is  focus on parameters adjust during injection. If no flash happen after a short shot, then we should go to another way to adjust the transfer point to avoid over-filling the cavity.

molding flash


When designing your plastic parts, as far as possible to reduce the thin-walled section, resulting in a thicker wall section, the entire product into a uniform wall thickness of the parts.

The rapid change in wall thickness is the most common cause of flash, due to the production process of plastic materials under pressure, through the liquid state to fill the injection mold.

If the product design in the thick and thin wall thickness of the part is necessary to exist, the use of different injection point to help the flow of materials.It is very important to control the location of the gate, especially in the tight tolerances of the plastic parts.

Flash of an injection molded part can happen for several reasons – slight variations in the material, pressure, speed, injection mold process and/or problems with the tooling itself.

For example,The sprue bushing is one of the reasons that can not be ignored.Need to know is that nozzle contact forces can range from 5 to 15 tons.If the thermal expansion makes the critical distance sleeve “growth” out of the parting line, the nozzle contact force enough to move the mold side, resulting in flash generation not only mold precision will produce flash operation,The operation of the injection molding is the same as the source of the problem, the mold should take advantage of the length of the hot runner bushing inspection, into the standard of each production.

Through analyze every stag of the injection molding process at our company, and ensuring consistent stress free manufacturing of your custom plastic parts.Our process engines allow us to produce tight tolerances parts for all of our customer.

Speed Up Your Development Cycle and Save cost 30%

It is true to use a unique plastic injection moulding company from Shanghai, China!

You can not imagine the situation, than you are in your own domestic procurement is faster and more reliable. In practice with 20 years of export, we have professional English translation ability, there will be no language barrier, you will get almost immediately to the problem or problems in response to rapid tooling is product development you need only a few days, the development of new projects will be faster, more reliable, you won’t have to worry about quality or copyright issues.

You will get our offer of quick interactive quote service, speed is the key factor in the success of the market to get the project, there is no excuse to the customer, you need to wait a few days to get a quote. Make sure your preferred mold supplier can take your offer in a day.Even if you haven’t finished drink your coffee, the offer is in your hands.

We have some tips to help you easily achieve, to help reduce your development costs 30%, to provide you with the development speed up to 50%, due to the traditional manufacturing industry.

Make use of the manufacturing analysisuniqueness injection moulding system is the correct manufacturing process for your project, you can quickly solve the problems in your area, speed up the production process, the quality will be as expected and negotiated..

One time free re-design -We know that some of the complex parts are designed to communicate through interaction with the engineer. If it can be molded plastic, we can do it. If it can be changed, we can help you to update the design , unlike some of the plastic injection moulding part manufacturer , we will not ask you to redesign your part, and more work to be done by us.



in plastic injection molding industrial, it refers to part features that prevent straight ejection at the parting line, which cause much mold complexity and lead to higher mold construction and maintenance costs. Whenever it’s possible, redesign the part to avoid undercuts. Minor part design changes can often eliminate undercuts in the mold. For example, adding through holes can give access to the underside of features that would otherwise be undercuts, simple modifications enable the mold to form a hole in the sidewall rather than with a side-action mechanism.

  • Side-action moulds are available with our standard manufacturing time of 5 working  days only. we always give customer most quickly service than any other company in china, actually more quickly than US, or Europe injection molds maker.
  • Side Action Support for Simple Undercuts or complicate undercut with difference manufacturing way.

At Cnmoulding  any number of undercuts we have the capability to produce your custom parts design. Our precision mold making technologies allows us to provide you the highest quality service , it will delivers the most complex plastic injection molded parts in the industry.


  • Injection Molding Undercuts ,the features is we don’t make it on the parting line area, it will cost much high fee and not easy to finish ejector part out.
  • Undercuts typically lead to increased whole injection molds complexity , it can lead to higher invest a mold construction costs as well.
  • The use of the most simple product design, do not add too much ribs, you can save the cost of the mold, so as to better design of plastic parts and more efficient molding process

Either an internal undercut or external undercut construct, when mold design it  requires an extra a slider or lifter structure to capture the detail of it. When an undercut feature cannot be removed from the part design, the tooling will most likely require for example hydraulic cylinder mechanisms  or gas assistant mechanisms to help facilitate the ejection out.