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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.

Mold Making

PTMS specialized in high quality plastic precision injection mold making since 2002, all mold makers are 5-15 years experience on mold making and very experience for USA, Europe, Australia, Japan standard in HASCO, DME, RABOURDIN, JIS and LKM or enterprise injection mold standard.


Machines

We have many advanced machines for mold making,CNC Machines such as 10 sets CNC machine, 4 sets Wire Cutting Machine, 2 sets Slow Wire Cutting Machine, 12 sets Milling Machine, 8 sets Grinding Machine, 15 sets EDM machine and Mirror EDM Machine, Auto Grinding Machines, MAG Grinding Machines, Polishing Machines and etc. Also outside good supply chain allows our experienced mold makers to meet compressed lead times while maintaining our reputation for quality injection mold. From single cavity & prototype injection mold to multi-cavity and family injection mold, mold maker are fully equipped to meet your unique tooling challenges. Our mold making shop is geared to work with injection molds from the small to medium to big size range, i.e. injection mold that are designed to run in presses of 800 tons and smaller.

Mold Making

Mold Making ShopWe just choose good mold components partner to work, such as LKM mold base, Mold Master, Gunther and etc, it makes sure the high quality mold components at the first time. The mold maker also check related important dimensions of mold base, cavity, core, inserts, lifter, electrodes, the mold designer have a meeting and discuss with mold makers about production every days, they will solve some questions in mold making, project manager also give some valuable comments to the mold makers. If you want to know plastic injection mold gallery please check our product gallery site.


We keep in touch with customers during mold making and discuss some problems with them, we also send customers CPP (CRITICAL PATH PLANNING) to show mold making plan progress and actual progress. Normally mold making progress like as Mold Detail design-Material preparation-Mold base received-Cavity processing-Core processing-Electrode-EDM & Wire Cut-Slide/lifter processing-Moldbase processing-Final fitting-Polishing-First Shot+Sample-FAI Report, we will send the first samples to customers for check and we will modify the mold if some questions, but normally our first molding parts samples will be perfect, that’s to say, our mold making capacity is very strong!

Additional

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

Summary

We have advanced mold making machines and project team who have much experience in mold making industry, they can control mold making cost in a reasonable range, also obtain maximum production, minimum cycle time and prolonged mold life. All the jobs we make are just for high quality custom and precision plastic injection mold.

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