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News center
  • Two Color Plastic Custom Injection Molding
    Two Color Plastic Custom Injection Molding

    PTMS as a china plastic injection mold supplier, we are also china injection mold exporter for many years, so we have many years experience in plastic injection mold making and custom injection molding production. We knew the structure of plastic parts is very complex, so there will be many injection shot on the custom plastic injection mould, it also called multi shot injection molding.   The Multi shot injection molding refers to creation of multiple layers relative to the starting axis of the initial mold. In other words, the warm, heated materials are inserted into the mold in a very specific sequence one after another. This creates a layering effect between materials while maintaining relatively high-energy interactions at material boundaries. This is important because it implies that the inter-layer bonds are stronger in many cases than when the layers are applied to a previously cooled part, as is more closely the case of over molding. While there are other applications, this operation is preferred when varying molds (different geometries) are desired between material layers.   If you need to know more data of multi shot injection molding, please visit our website ptms-mold.com and contact us by sales@ptms-mold.com, we will learn and share more with you.

  • China Two Color Custom Plastic Injection Molding
    China Two Color Custom Plastic Injection Molding

    PTMS as one of china custom plastic injection parts suppliers, also one of double injection molding manufacturers in china, we always provide high quality custom injection molding and double color injection molding to the worldwide customers. In the fact, the double color injection molding also called two component injection molding. We will share some data about double injection molding, two component injection molding describes insertion of multiple viscous materials injected simultaneously, as opposed to placing one material as an additional layer relative to another. In other words, it creates a sandwich-like structure where both materials mold around each other as dissimilar liquids, and exist in such a state at the same time. Relative to the part center, materials can be injected concentrically using the same mold/gate, or regionally using gates at different locations. If you want to find high quality plastic injection mold manufacturers, you can contact PTMS, for more please visit our website ptms-mold.com, we are a china custom injection mold supplier, also we are one of china double injection molding manufacturers, always make top quality custom plastic injection mold and injection molding to clients.

  • Cooling of Cavity and Core for Custom Injection Mold
    Cooling of Cavity and Core for Custom Injection Mold

    PTMS as a china plastic injection mold supplier, we are also china injection mold exporter for many years, so we have many years experience in plastic injection mold making, how to make high quality injection mold? The design is very important, as we know, the injection mold will be very hot when production in injection machines, so the cooling should be good, we will share the knowledge of injection mold cooling.   The injection mould is made of cavity and core, so it include two cooling, cavity cooling and core cooling. Cavity plate cooling by drilled holes. The cavity plate is drilled around the cavity insert and plugged with copper or aluminum taper plugs at the ends of openings. Using pipe connected at the inlet and outlet ports, water is circulated to cool the mold. Direct cooling of core insert (baffle system)—The core is drilled by keeping sufficient wall thickness. A baffle plate is located between the drilled hole, dividing the hole into two halves, allowing the water to contact the maximum area in core so cooling may take place. Annular cooling of cavity insert—A circular groove is made on the core for water circulation. To prevent leakage, O-rings are used above and below the cooling channel.   We can make top quality custom plastic injection mold with perfect cooling design, so the injection mould has a long mold life when custom moulding production, if you want to know more please visit our website ptms-mold.com, we would like to share and learn more from the worldwide plastic injection moulders.

  • The Attributes of Plastic Injection Mold Cooling Design
    The Attributes of Plastic Injection Mold Cooling Design

    PTMS as a china plastic injection mold supplier, we have much experience in plastic injection mold making, also a multi-cavity injection mold factory, so we can make high quality custom plastic injection mold for customers. How to make injection mold? Firstly we have to design a perfect injection mold, the cooling design is very important in mold design and mold making, so we will share some desirable attributes of the mold cooling design that include: Constant mold temperature for uniform quality, Reduced cycle time for productivity, Improved surface finish without defects, Avoiding warpage by uniform mold surface temperature (warpage caused by nonuniform cooling), Long mold life. If you need top quality custom plastic injection mold and custom moulding, you can contact us, for more details please visit our website ptms-mold.com, hope we can design and make more high quality injection molds and injection molding for the worldwide people.

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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