Tips for Choosing a Reliable China Injection Molding Supplier
An injection molding process involves the injection of molten material into a steel injection mold and then allowing the material to cool, resulting in a solid shape and then ejected by an ejection system . It is possible to manufacture a wide range of objects via injection molding, including automobile parts, toys, and medical devices.
StepDescriptionMeltingThe heated barrel and rotating screw are fed with material from the hopper. The material is melted through heat, friction, and shear force caused by the screw’s rotation. It is then forced through a check valve to the front.InjectionThe screw is pushed forward by a hydraulic ram, moving it from the back end to the front. This action pushes the melted material forward for injection.CoolingThe mold tool remains closed, allowing the injected plastic to cool and harden in the cavity. This stage typically takes the longest duration in the injection molding process.EjectionThe screw is moved backward to prepare for the next molding cycle. The mold tool opens, and the hardened plastic part is ejected. The tool then closes, and the injection molding process repeats from step 1.Material, usually metal or plastic, is melted inside the barrel at the beginning of the process. A high pressure injection is then used to inject the molten material into the mold via sprue,ruuner and gate. It is opened and ejected from the mold when the matter has cooled and solidified enough. The process of injection molding can be used to produce mass quantities of objects quickly and at a reasonable cost.
A history of injection molding can be traced back to the 1800s. Alexander Parkes invented a method for molding cellulose into objects in 1851, marking the beginning of injection molding. The first plastic injection molding machine was patented by John Wesley Hyatt in 1872.
As a result of this machine, plastic objects could be mass produced in large quantities in a short time. With the advent of mass-production of plastic products in the early 1900s, injection molding became increasingly popular. Medical devices, automotive parts, and electronics are among the types of products injection molded today.
injection molding machineIt is important to select a reliable China injection molding supplier when you are facing so many suppliers. The importance of this can be attributed to a number of factors- the financial position of the China injection molding supplier, their experience in the industry and their reputation. In 2021, the demand for injection molding products in China reached 25.77 million tons- an increase of 1.470 million tons from 2020, an increase of 6.0% year-on-year, and the demand for injection molding products in China is expected to reach 26.91 million tons in 2022
Some quality factors to consider when selecting a reliable China injection molding supplier- whether or not they have a factory, what type of quality assurance system they require and how many employees they have.
You may not be able to obtain high quality injection molding parts if your supplier is not reliable and your customers may become unhappy as a result and sales may be lost. With a reliable and flexible China injection molding supplier, you can win over customers who may be apprehensive about purchasing injection molding parts.
It is also possible that an unreliable injection molding supplier will not be able to deliver your products on time, which could result in sales being lost.The time it takes for the recipient to receive the order.You should ask the plastics supplier about their average time for delivery.
The third disadvantage is that you will have difficulty obtaining after service assistance from an unreliable supplier if there is a problem with your order.
There are a lot of risks involved in purchasing goods without any protection. You might not receive the item you ordered and the supplier might refuse to give you a refund. If this happens, then it will be hard to find someone who can help you get out of the situation.
Last but not least, working with a reliable injection molding supplier is generally more convenient- you will typically receive better customer service from them. They’ll take into consideration any requests you may have and give the same weight as any other business. they might even be able to secure you a refund in certain circumstances if their error caused you a problem.
Topworks can optimize your design for cost savings or ensure compatibility by optimizing your design before tooling. Clients are welcome to supply 3D files
Topworks can utilize Computer Numerical Control (CNC) to produce a machined prototype or 3D printing that you can see and feel to validate the design of your part.Also we supply vaccum casting service
During this stage, your Tooling Information Worksheet is used to design the tool.
The accuracy of the tool design is validated.
The tool is precisely fabricated according to the validated design using Computer Numerical Control (CNC), and Electrical Discharge Machining (EDM) …
The first test shots will be sent via courier soon after the injection molds are made. Once sent, these usually arrive in 2-5 days.
At this point, Topworks makes any changes to the tool that is necessary to bring it into compliance with the approved specifications. Topworks makes any changes that are necessary (specifically excluding design changes, which are always charged for) free of charge.
In this stage, the texturing process is done, which is usually the last step before mass production.
Topworks side
In this stage, the tool is handed over to the customer or ready for injection molding.
Research is crucial when looking for mold manufacturers in China . It is possible to research potential plastic molding suppliers in a few different ways, and each has its own advantages and disadvantages.
Searching online – alibaba.com, made-in-china.com and globalsource.com – for potential suppliers is one method of researching potential suppliers. By doing so, you will gain a better understanding of what products or services a supplier offers, as well as their pricing. Nevertheless, keep in mind that not all information found on the internet is reliable, and it is important to do your research before making any decisions. Also you could find many suppliers via google.com and bing.com. In addition, you can also search for Chinese suppliers on social media platforms- facebook.com,linkedin.com, Instagram.com,pinterest… -many suppliers have their own social media accounts, and you can search for relevant keywords on these platforms to find suppliers of interest and make contact.
It is also advisable to speak with other businesses who have used potential suppliers in the past to conduct further research. The purpose of this is to provide first-hand information about the quality of the company’s products or services, as well as the level of customer service they provide. It is an absolutley useful way to avoid fraud suppliers
You could also attend a trade show– Aisamold and Chinaplas . There are many trade shows that feature Chinese injection molding suppliers. This is a great way to meet potential suppliers and learn about their products face to face.
Another method you can use to find a China plastic injection supplier is to contact a sourcing agent. Sourcing agents are companies that help businesses find suppliers in China. They have experience working with Chinese injection molding suppliers and can help you find the right supplier for your needs.
If you’re looking for an injection molding supplier in China, it can be difficult to find the best one: with so many different companies competing for your business, it can be hard to find the best price and quality.
To make sure you’re getting the best deal available, it’s important to take a few minutes to read through the supplier’s website and compare prices between them.This is where Blueprints can help.
If you have any questions or concerns about the product or service being provided, it is important to speak with your China injection molding supplier , especially if the supplier is based in China.
By doing so, you can get answers to any of your questions and ensure that your purchase is in good condition. It is also important to be aware of any potential problems that may arise. If you have any questions about the injection molded product or service, it is best to reach out to the supplier.
In order to enter into an agreement with a Chinese supplier, the following 4 questions should be asked:
It is important to look for certain key elements when entering into a supplier contract to ensure that your company is protected. You should be aware of the following:
It is essential to build a good relationship with a Chinese injection molding supplier to ensure a successful partnership. Getting started can be easy if you follow these tips:
With these tips, you can build a good working relationship with your supplier that benefits both of you.
Before placing an order to a new China injection molding supplier, it’s always a good idea to visit their factory. This will give you the opportunity to see the injection molding manufacturing process and meet the people who will be making your products.
It’s also a chance to make sure that the factory is up to your standards in terms of cleanliness, safety, and working conditions.
When you visit a China plastic injection molding supplier’s factory, there are a few things you should keep in mind.
When planning your visit to a factory, it is important to consider when the business is open-most. Many Chinese injection molding suppliers also work on Saturdays, which is one of the secrets of their ability to make money. During business hours, you will be able to see the factory in action and get a better understanding of how the products are made. Make sure to schedule your visit for during these times so that you can maximize your experience.
When visiting a supplier’s factory in China, be sure to schedule plenty of time to tour the facility and meet with key personnel. Be prepared for a language barrier, as most workers will not speak English.
While on the tour,
By taking these steps, you can get a good sense of whether or not a particular supplier is right for your company.
As the world increasingly turns to China for injection molding manufacturing needs, it is more important than ever to choose a reliable supplier. This is especially true when it comes to injection molding, as the process is complex and requires precision. There are many factors to consider when choosing a supplier, such as cost, quality, and delivery time.
It is important to do your research and ask for recommendations when choosing a supplier. You should also visit the facility and meet with the team to get a better understanding of their capabilities. Once you have found a supplier that you trust, it is important to build a good relationship with them. This will ensure that you can count on them for all your future needs.
Yes, there are many cost advantages and high risks as well. Let us discuss following items:
- Distance (travel times, transport routes): Due to Corona Virus times and due to cost reasons, we prefer weekly regular online video conferencing to clarify timing, costs, and quality requirements, if any.
- In China, for example, toolmakers work closely with Chinese parts suppliers or are parts suppliers themselves (risk: know-how transfer): We deliver tools and parts at one company and keep non-disclosure agreements.
- Cultural differences, e.g. investment behavior in China (in consequences bad quality of parts): We produce molds and parts with our modern equipment and machines according to your drawings, product specifications and quality manual. We make several trial-runs on our own machines and send report to you before we ship mold or parts to your destination. Even there are some orders from customers running parallel, we are not overloading our production and are always able to deliver in time.
- Little experience, for example, of Chinese toolmakers in high-volume production tools, e.g. incorrect hardness, dimensional deviations: We transfer “lesson learned” from one project to the next one. See our high volumes molds for our International customers.
- Prices for high-quality tools are often just as high as in Germany (e.g. complexity, shot performance guarantee): To compare apples with apples, we have at least 30% price advantage due to cheaper workforce, machines and energy costs. Our processes are highly efficient. We deliver all kind of mold types.
• Two Shots Molds or Over molds
• Large Size Molds
• Prototype Molds
• Single Cavity Molds
• Multiple Cavity Molds
• Three Plate Molds
• Insert Molds
• Robot Transfer Molds
• Hand Transfer Molds
- Tools are often designed for manual assembly processes, higher requirements for automatic assembly lines required: Our company was established 2002, and 90% of our molds go to Europe and US, where all production runs fully automatic with robots and handling devices.
- The Chinese market in toolmaking and purchasing of parts is too complex and too dynamic to be treated and executed from Germany headquarters: This is correct, therefore we have a German agent GTEC established in China to be an extended workforce to clarify all technical and commercial communication gaps, if any.
- Lack of trained personnel in toolmaking: We send our workers to German-Chinese vocational training center for industrial mechanics in Guangzhou (South China). Our 105 experienced and according to Western quality standard well-trained employees can handle all requirements in high precision surface quality, complex 3D geometries, and on time delivery. For example, we are able to analyze temperature critical areas to reduce cycle times at plastic injection machines.
What makes us different from our competitors?
• In production, we often use multi-sided machining without manual re-clamping and setup.
• We have skilled workers who do die spotting by hand, which is rarely available.
• Our machine park includes jig- and profile-grinding machines
• In plastics processing, the mold is designed for an optimized injection molding process of the part.
• If errors occur, we have experience in the analysis of complex processes.
• The parts can be optimized because there is an understanding of the relationship between process and material properties.
• We keep our experienced staff over many years and don’t change skilled personnel and managers
• Our staff is able to read English, but Sales and Agents can communicate in English on professional business level.
• We regularly improve our tooling inhouse by our professional staff to avoid rework, e.g. deburring.
From the entrepreneur's point of view, the following working conditions in our plant are positive:
• 300 days/year working in tool shops, 3-shift operation is possible.
• Modern machinery, good CAD/CAM equipment (high investment)
• sometimes still low utilization of capacities (short delivery times)
If interested in our molds and plastic parts, please contact following persons with phone, email, or skype:
USA Tel: +1 978 310 1919 China Tel: +86-0769-87560305
Mobile (Wechat or Whatsapp): +86-18938293076
Email: sales@grprecisionmold.com
Skype: tfy189
China Facility Add:
#2 Jin Qiao Industrial Park, JinQiao, QingXi Town, Dong Guan City, GuangDong Province, China 523740
USA Support Add:
PO.Box#531, Buena Park, CA 90621
European Support Add:
199 route de Colombey 71370 OUROUX SUR SAONE France