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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.

PTMS as a Chinese injection mold maker and injection molding parts manufacturer, our engineers are experienced more than 15 years and 80% of engineers were working in Multi-National Corporations, so we can provide excellent plastic part design, complete injection mold design, die-casting mold design, mold making and engineering (Mold-Flow Analysis) service to the worldwide customers.


2D Injection Mold DesignThe engineers design mainly focus on function, appearance and ergonomics, also they will consider part materials, design requirements and manufacturing challenges, so the design will be moldable and manufacturability for customers’ need. Also our engineers will fully support the customers’ projects till it’s finished.

We use the most advanced software to design mold and make engineer service, the software include Auto Cad, UG-NX, Pro-E, Master Cam, Power Mill, Mold Flow. Each Plastic Injection Mold is designed 2D/3D solid, providing complete digital representations for mold making and ensuring proper integration of all injection mold components. Using a 2D/3D model eliminates many of the traditional steps in the injection mold manufacturing process.

We can design excellent mold drawing if customers sent us the part’s drawings which include DWG, DXF, UG, Pro-E, Solid works, IGES, STP, X_T format 2D and 3D data. Our engineers make plastic injection mold design and die-casting mold design according to HASCO, DME, RABOURDIN, LKM standard.


Moldflow Analsis For Plastic PartsMold-Flow Analysis is very important for mold design and molding making, we will make these analysis for design, such as Fill Simulations, Shrink or Warp Analysis, Fiber Orientation, Shear Stress Analysis, Weld Line Analysis, Finite Element Analysis, SLA/SLS Models, Rapid Prototyping, Process Development, translation with major CAD programs through IGES, STEP, DWG and DXF format, we will send DFM Report to customers for checking before mold design, also include some valuable suggestions for part and mold making.


The engineers can also design metal parts into plastic parts if customers need, just convert metal material into plastic resin, we also design plastic injection mold instead of CNC machining metal parts, it will make much benefits to customers, such as lower cost, light weight, weather resistance, no rusting or denting and etc.


We have experienced engineers and advanced software to provide moldable and manufacturability mold design for normal mold making and complex mold making.

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