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  • The Stages of Injection Molding
    The Stages of Injection Molding

    Injection molding parts are widely used in many industries, but how to produce such plastic parts? Many people like plastic products but they do not know how it is produced, so now we will share the production knowledge - the stages of injection molding to the worldwide people. If you need high quality injection molding, firstly we should make high quality injection mold, also called injection tooling or injection mould, besides, we need the right injection molding machines to produce the injection molding parts, so all is clear, the stages of injection molding include: 1. Granulated or powdered thermoplastic plastic is fed from a hopper into the Injection Moulding machine. 2. The Injection Moulding machine consists of a hollow steel barrel, containing a rotating screw (Archemidial Screw). The screw carries the plastic along the barrel to the mould. Heaters surround the barrel melt the plastic as it travels along the barrel. 3. The screw is forced back as the melted plastic collects at the end of the barrel. Once enough plastic has collected a hydraulic ram pushes the screw forward injecting the plastic through a sprue into a mould cavity.  The mould is warmed before injecting and the plastic is injected quickly to prevent it from hardening before the mould is full. 4. Pressure is maintained for a short time (dwell time) to prevent the material creeping back during setting (hardening). This prevents shrinkage and hollows, therefore giving a better quality product. The moulding is left to cool before removing (ejected) from the mould. The moulding takes on the shape of the mould cavity. You will know how to produce injection molding if you read the blog, PTMS would like to learn and share more and more data of injection molding with people who like injection molding, if you need our service, please send us RFQ or send e-mail to sales@ptms-mold.com. 

  • Injection Molding Process
    Injection Molding Process

    Plastic injection molding parts is widely used in Automotive, Home Appliance, Medical, Printer, Plastic Tooling,Defense and Electronics industries. PTMS as a professional injection molding manufacturer, we would like to share injection molding process to people who are interested in injection molding. The details of injection molding process include: 1. close mould - the moving and fixed platens of the injection moulding machine hold the mould tool together under pressure. 2. injection - the molten plastic that has been melted from pellet form in the barrel of the moulding machine is injected under pressure into the mould. 3. cooling - the plastic parts are then allowed to solidify in the mould. 4. opening - the moving platen moves away from the fixed platen separating the mould tool. In the fact, the injection molding process is very interesting, the injection machines are very important for production, our company has 20 sets advanced auto injection machines for mass production. If you like to know knowledge about injection molding, welcome to send us RFQ to sales@ptms-mold.com.

  • Many Customers Like to Work with PTMS
    Many Customers Like to Work with PTMS

    As a professional injection mold manufacturer, PTMS always provide customers high quality injection tooling and injection molding with reasonable price, also perfect service all the time. So 99% of the customers like to work with us, they also would like to introduce other friends to cooperate with us. One of our customers introduced a good business partner to us this week, this new company like our high quality and perfect service for injection tooling, so they were happy to work with us, they will send us the samples for check and ask us to make injection tooling this month. Our project team will make design for the project, we can provide full service for this, such as design, mold making, injection molding, assembly. If you have injection molding project, welcome to send us RFQ, we will study it and give you valuable solution, our business email is sales@ptms-mold.com.

  • High Quality Plastic Injection Mold Making
    High Quality Plastic Injection Mold Making

    PTMS is a professional high quality custom plastic injection mold and precision injection molding parts manufacturer in China . As an ISO9001-2008 certified plastic injection molder, we offer an one-step service include excellent engineering, mold making, close-tolerance injection molding, tooling manufacturing, precision machining and prototype for product pre-check services for a complete custom manufacturing experience. PTMS work with a variety of injection mold configurations and a summary of available options can be found here, Mold Types as below: Prototypes Injection Mold       Multi-Cavity Injection Mold         Family Injection Mold Unscrewing Injection Mold     Over-molding Injection Mold      Hot Runner Injection Mold Die-Casting Mold          Silicone Compression Mold        Thermoset Compression Mold In business since 2002 , we offer valuable solution from plastic injection mold design to injection molding parts assembly and our products are widely used in Automotive , Home Appliance , Medical , Printer , Plastic Tooling , Defense and Electronics industries , some of our customers are from Toshiba , TDI-Arms , BMW , etc. Our company always provides high quality products with reasonable price and perfect service to the worldwide customers. So if you need high quality injection molds and injection parts, please feel free to contact us by sales@ptms-mold.com.

Why Choose Us?

PTMS can provide customers valuable mold making solution. We always offer one-step service from plastic injection mold design to product assembly with high quality and reasonable price for customers on time. There are many plastic injection molding companies in China but not all companies can provide valuable solution. PTMS can offer one-step service from mold design to assembly with high quality and reasonable price on time.

High quality injection molding parts

PTMS can make excellent mold design as customers’ requested and provide innovative solutions based on a varied industry experience. We sign NDA (non-disclosure agreements) with customers and protect patent or all intellectual property rights.

Mold making with high quality component parts and advanced machines, as an ISO9001-2008 systemSira Certification For Injection Mold&Molding Parts certificated manufacturer, our mold makers are experience 5-15 years on mold making and very experience for USA, Europe, Australia, Japan standard in HASCO, DME, RABOURDIN, JIS, LKM or enterprise injection mold standard. They can control mold making cost in a reasonable range, also obtain maximum production, minimum cycle time and prolonged mold life.

We choose certified plastic resin- FDA, ISO, ROHS, REACH, NSF, so the quality of materials is good, injection molding parts production by auto machines, the injection molding team have much experience in molding and control the cost, we also have advanced inspection equipments and QC technicians, high or low volume is available for us, our product qualification rate is 99.9% and delivery time is very punctual. We can also make second operation for molding parts, such as printing, painting and plating as customer's needs. Some of our customers are from ATA, Toshiba, TDI-Arms, BMW, Mindray and etc.

High quality die-casting parts

We also have production shop for die-casting mold and die-casting parts, the materials include aluminum, zinc and magnesium. Advanced die-casting machines, experienced workers, QC dept, so all makes high quality die-casting with reasonable price, we also produce prototypes, CNC machining parts, metal stamping as customers’ need. We can also make second operation for metal parts, such as printing, painting and plating as customer's needs.

A set of perfect service

We can provide customers perfect service during the process of projects.Make Value For Customers

Our sales staff graduated from university, they have fluent writing and oral English, much negotiation skills in business, friendly and work hard, meanwhile, good cooperating with project team and others. So they can help customers if any questions and remind project team to solve issues as soon as they can.

We have a good project team, our project manager was working 10 more years in 3 multi-national corporations which from Japan, United States and Deutschland. Meanwhile, other managers had 8-15 years experience in multi-national companies, so they can provide perfect service for mold making and make sure accurate delivery date.

Our injection molding shop can make mass production by auto injection molding machines on time. Meanwhile, we can offer second operation for molding parts, such as printing, painting and plating as customer's needs. We can also provide R&D and assembly service to customers.

We have a friendly, hard working, cooperating and innovation team so PTMS can provide a full perfect service to the worldwide customers.


PTMS can provide high quality products with reasonable price, perfect service to customers, so if you need plastic injection mold, injection molding, die-casting, CNC machining parts, metal stamping, second operation, assembly and etc, you can choose PTMS – an influential company in injection molding industry.

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