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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.

Die-Casting Parts

What is quality Die-Casting Molding Parts? We always produce high quality die-casting mold and die-casting parts for Aluminum, Zinc parts and Magnesium parts since 2012. PTMS started to produce die-casting mold and die-casting parts since 2012. We invested a die-casting shop for aluminum, zinc and magnesium parts processing as customers’ need, all mold makers have much experience in die-casting mold making.

Zinc Casting Machine
We have many advanced machines for die-casting mold making which include 4 sets Aluminum casting machines, 2 sets magnesium casting machines, 4 sets Zinc casting machines and 10 sets CNC machines for casting parts machining, others include Stamping Machines, Stamping Press Machines, Drilling & Screwing Machines. The workers have 5-15 years experience in operating machines, it is one important aspect to make high quality die-casting mold and die-casting parts.

Die-Casting mold

Our die-casting mold makers have much experience in die-casting mold making, there are 80 people in this shop, 5 CNC Programmers, 10 CNC Operators, 1 Wire Cutting Technicians, 10 Technicians for other machines, 20 Technicians for die-casting machines, 10 mold makers, 3 QC people, 2 PMC people, 8 clerks and etc.

Casting ShopWe can make Die-casting mold for aluminum, zinc & Magnesium alloy parts, we will make die-casting mold based on 2D/3D drawings that include Solid works, NX, Pro-E, Auto-CAD (NX, Master CAM) for CAM, the mold materials include Steel 45#, 50#, 60#, P20, 718, 2083, SKD61, etc. The mold maker can control die-casting mold cost in a reasonable range and make sure reasonable mold price because they have much experience to control the total cost in mold making. Single mold or Multi cavity mold are available for us to make, die-casting mold standard include HASCO, LKM, DME etc. Die-casting mold life will be accepted by customers for mass production purpose, the mold application will be Automotive, electronic, industrial, hardware, consumer, army and etc.

The die-casting mold designer have a meeting and discuss with die-casting mold makers about production every days, they will solve some questions in mold making, project manager also give some valuable comments to the mold maker. 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 and trial samples and try-out report to customer for testing. We will modify the die-casting mold if samples not accepted, but normally our first testing samples are excellent so die-casting mold is high quality.

Die-Casting molding parts

Zinc CastingWe have 10 sets machine for die-casting parts production with 88ton, 200ton and 280ton. Also many experienced people in die-casting parts production so they can control quality and the cost, the materials we can produce include Aluminum, Zinc and Magnesium, the details as Aluminum for A308, A380, A356, A360, A384 and Zinc for Zamak2, Zamak5, besides above, we can make Rapid prototyping, Precision CNC machining and Metal stamping parts. Surface treatment of die-casting parts include polished chrome plating, painting, PVC powder coating, oiled (rust-proof), zinc, nickel, chrome plating sandblasting and etc.

The die-casting molding parts are used for automotive, electronic, industrial, architectural, medical, consumer and etc. We have made die-casting parts for HTC, Samsung, HuaWei and ZTC for mobile cover. If you want to know casting gallery please check product gallery site. We can also make second operation for die-casting parts, such as printing, painting and plating as customer's needs.


We have advanced die-casting machines and many years experience mold making team in die-casting parts industry and 3 QC technicians for each shift. 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, etc.

We send die-casting parts quality report to customers for check, such as FAI, SPC, CPK and etc. All the jobs we make are just for high quality die-casting mold and parts with reasonable price.

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