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  • What Products are Made from Injection Molding?
    What Products are Made from Injection Molding?

    Many plastic parts used in many products, so plastic parts is very popular, but nobody know how the plastic parts produce, in the fact, the plastic parts is made by plastic injection mold, the plastic parts is also called plastic injection molding or injection molding.   Injection moulding is used to create many things such as wire spools, packaging, bottle caps, automotive parts and components, pocket combs, some musical instruments (and parts of them), one-piece chairs and small tables, storage containers, mechanical parts (including gears), and most other plastic products.   PTMS is a china plastic injection mold company, we can make top quality plastic moulds as customers’ drawings or design, also we are china injection molding undercut manufacturer, for more details please visit web ptms-mold.com. We would like to share more and more injection molding knowledge with the worldwide people.

  • Injection Molding Defects
    Injection Molding Defects

    As a china injection molding exporter, PTMS always provide high quality custom plastic injection mold and custom moulding for the worldwide people, but at the first injection molding testing, there will be some defect plastic parts.   How the defected injection molding happened? Let us tell you some details, some defected parts is caused by injection mold flash, because some times injection molds have some a little flash, that is to say, molding flash occurs when a thin layer of material is forced out of the mold cavity at the parting line or ejector pins location. This excess material remains attached to the molded article, and normally has to be manually removed. Some reason as: worn or poorly fitting cavity or mold plates, Including, mold plate deformations and obstructions (grease, dirt, debris).   How to solve such problem? The mold making team must pay more attention to the injection mold making, besides, the engineer should have good solution for injection mold layout and other facts. PTMS has much experience in plastic injection mold making, for more details please visit our website ptms-mold.com, RFQ for project please send to sales@ptms-mold.com. 

  • Disadvantages of Injection Molding
    Disadvantages of Injection Molding

    Many people know the advantages of injection molding, such as fast production, low labor costs and etc, but do you know the disadvantages of injection molding? PTMS as a professional injection molding manufacturer in China, we have much experience in injection mold making and injection molding manufacturing, such as over injection molding, double color injection molding, injection molding with metal insert, etc.   So we would like to sharing some more advantages of injection molding for you, such as high-output production, multiple materials can be used at the same time, can be used to produce very small parts, reduced requirements for finishing, etc. The disadvantages of injection molding as: High initial tooling and machinery cost, Part design restrictions, Small runs of parts can be costly.   If you need high quality custom plastic injection molding, but you can't find a good plastic injection mold company, please do not hesitate to contact PTMS, we have much experience in plastic injection mold making and injection molding, for more please visit ptms-mold.com and RFQ send to sales@ptms-mold.com, thank you very much for your attention!   In the matter of the fact, there are many other advantages for injection molding, PTMS would like to discuss more about injection molding if you like, we can learn from each other, thanks for checking!

  • How Does Injection Molding Work?
    How Does Injection Molding Work?

    Plastic parts are widely used in many aspects, because it’s very easy to use and very safely and comfortable for people’s life, so plastic injection molding is very important for producing plastic parts, but just a little people know injection molding work, most do not know it, because just people who work in injection molding industry know it, so we will sharing this to you.   Material for the part is fed into a heated barrel, mixed, and forced into a mould cavity, where it cures and hardens to the configuration of the cavity. Moulds are typically made from metal, usually either steel or aluminium, and precision-machined to form the features of the part. They may need to split in a variety of ways to eject the finished part, or locate inserts that are bonded into the product. Most elastomeric thermoset polymers can be injection moulded, although custom compounding may be required in order to facilitate the process. Since 1995, looking across the entire range of thermoplastics, resins and thermoset types, the total number of available materials for injection moulding has increased dramatically at a rate of 750 per year. There were already approximately 18,000 materials available when that trend began, and injection moulding remains one of the most useful industrial processes ever invented.   PTMS as a professional plastic injection mold company in china, always provide customers custom plastic injection mold and custom injection molding, for more visit ptms-mold.com, PTMS would like to sharing other injection molding issue to people who are interested in plastic injection moulding, please give us feedback to sales@ptms-mold.com of some issue.

Injection Molding
PTMS always provide high quality custom precision plastic injection molding parts since 2002. We have 35 Japan and China advanced plastic injection molding machines, also experienced injection molding team work in our company and they know how to control cost and make high quality injection molding parts to customers.

Machines

50-130Ton Japan Injection MachinesWe have 2 injection molding workshops now, the first workshop running 15 sets precision molding machines which include 8 sets Toyo Molding machines, 2 sets Toshiba Molding Machines, 2 sets Nissei Molding Machines, 2 sets Double Injection Machines, 2 sets Sumitomo Molding Machines, 1 set Mitsubishi Molding Machine. The second workshop running 20sets injection molding machines which had installed robot for plastic parts and injection runner fall down automatically, it produce custom injection molding, over-molding and silicone compression molding, also make outstanding precision, high quality, fastest dry cycle times in the industry. Besides, we can also produce insert molding and two shot molding. Plastic injection molding parts are used for Home Appliance, Medical, Weapon accessories, Printer accessories, Automobile parts, Connector parts and etc.

Materials

Plastic ResinPTMS injection molding machines can run all types of resins from commodity to engineered grades, high temperature to filled materials, we only work with high quality plastic resin suppliers in the industry and confuse normal bad plastic resin so our plastic resin we used is 100% qualified, the plastic resin as below:

Common Resin: ABS, PC, PC+ABS, SAN, HIPS, GPPS, HDPE, LDPE, PP, PE
Engineering Resin: PP+GF, PPO, PPS, POM, POM+GF, PBT, PBT+GF, Nylon, Nylon+GF
Soft Resin: PVC, TPE, TPR, TPU, Silicone
Over-molding Resin: ABS-TPE, TPR, PC-TPE, TPR PC+ABS-TPE Nylon-TPE,TPR

We also request the suppliers to provide us certifications which include ISO, ROHS, and others. We can show them to customers for check. All the materials we use are 100% brand new because high quality product is our company’s life.

Molding

Auto Injection MachineWe improve our production equipment into auto injection molding machines in 2015, 20sets injection molding machine had installed robot for plastic parts and injection runner fall down automatically.So the parts are removed from the injection mold by robotics or conveyor systems, it makes reliable, efficient and cost effective to injection molding parts production. If you want to know plastic injection molding parts gallery please check our product gallery site. We can also make second operation for molding parts, such as printing, painting and plating as customer's needs.

Summary

We have advanced plastic injection molding machines and many years experience team in injection molding industry and 8 QC technicians for each shift. We also send customers the first samples for check, QC inspect the samples by inspection equipments like as CMM, Projector, 2DMI, Micro Glass, Height Altimeter, Block Gauge, Pin Gauge, L-Square, Callipers, Micrometer, hardness and etc. We send quality report to customers for check, such as FAI, SPC, CPK and etc. All the jobs we make are just for high quality plastic injection molding parts.

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