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  • 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.

Quality
PTMS always provide customers high quality, reasonable price plastic injection mold and injection molding parts. We also improve ourselves each day and want to be one of the famous injection mold maker in the world. We would like to help more and more companies with injection mold and precision molding parts.

Responsible

Every people from president to common employee are very responsible for their jobs, our company has strict check-up system for each people, so oversea salesmen try their best to develop business, project team are conscientious for mold design, mold making team are conscientious to make mold. PTMS team is very responsible for injection mold making and precision molding parts production.

Working skills

We train every people skill and ask them to make quality as the first important job, every people would like to care their jobs quality, below are the procedure for customers’ reference:

1. Mold Design

Mold Designer will check customers’ 2D/3D drawings and other related data carefully, also they will communicate with customers for drawings, project engineer also give customers’ valuable suggestions on part design and mold making based on the data, because some customers are not familiar with mold design. So we would provide them excellent solution to save lots cost on mold making and molding parts production.

2. Mold Making

We just choose good partner to work, such as LKM mold base, MoldMaster, Gunther and ect, so we can control the quality effectively. We would check related important dimensions of mold base, cavity, core, inserts, lifter, electrodes. The EDM technician will check every electrodes before EDM processing, the mold maker technician would check all the mold components follow parts drawing before mold testing, before mold shipment, our QC, Mold Designer, Project Engineer and Mold Maker have a meeting, they would check all the mold components approval, care about mold appearance and put mold spec, user manual into package box, we make FAL report with customers' drawing dimension and care about the appearance of metal parts before shipment, QC would check and put FAL report into package box. After the all jobs, the tooling will be shipped to our customers.

3. Injection Molding

Our QC and Project Engineer will check related dimensions which customer approval and plastic part’s appearance, then make instruction documents with signature approval samples for mass production. Every injection molding operator would follow that to do mass production. Before package, QC would spot-check 5-10 pcs samples of each boxes, and before shipment QC would care about the package appearance, then ship to customers.

Guarantee

We always provide customer high quality injection mold and molding parts as their requirements, but sometimes just a little fault will appear when mold design, mold making, injection molding, shipping and etc because of something, but the defective rate is just 0.01%, below are some conditions for your reference:

1. Mold Design

We will design new mold free of charge if the fault is made by us, but we can also re-design it free of charge if a small fault by customers sometimes, design fee will be collected if big fault by customers.

2. Mold Making

We will modify the mold free of charge if fault by us, but we can also modify it free of charge if small fault by customers, modified fee will be collected if big fault by customers. But in the fact, PTMS invest much money on mold modification, even invest much money on new mold making, just want to provide high quality mold to customer, also high quality molding parts, we don't care money loss, just for long time business partner and give value to customers.

3. Injection Molding

We will produce new injection molding parts free of charge if fault by us, but we can also produce small qty if small fault by customers, new injection molding parts production fee will be collected if big fault by customers. Beside we just choose good plastic resin suppliers to work, make sure high quality materials.

But PTMS always reduce the fault and we have a solution for high quality injection molding parts. We will provide new part which reaches the standard 100% free of charge, but customers have to give us the inspection instruction document. Normally in our production procedure customer needs approval the samples and signature on it, send to us for quality control spec, than we will do the mass production accordingly.

CertificationSira Certification

PTMS is an ISO9001-2008 system certificated manufacturer, so we have very strict Quality Control on mold and molding. We always see the Quality is the life line and development base of the company, so we can provide customized inspection services to meet each customer specific requirements, with the capacity to measure both injection mold components and final plastic parts in depth.

Inspection equipments

All components of injection mold and molded precision plastic parts are fully-qualified by our good inspection equipment and QC system.

Inspection Equipments as below:
CMM
CMM 800*600 USA 1set
Projector China 1set
2DMI China 1set
Micro Glass 10times and 15times China 2sets
Height Altimeter Mitutoyo Japan 2sets
Block gauge Mitutoyo Japan 1set
Pin Guage Mitutoyo Japan 1set
L-Square Mitutoyo Japan 5sets
Callipers Mitutoyo 0-150/0-200/0-300 Japan 20sets
Micrometer Mitutoyo 0-50/0-100 Japan 10sets
Salt Spray China 1set for Laboratory
Drying Box China 1setCPP
Hardness China 1set

Quality system report as below:

FAI Report-First Article Inspection Report for Molded Plastic Samples
SPC Report-Steady production control For Injection Molding Production
CPK Report for Injection Molding Production
CMK Report for Injection Molding Production
SGS Report for plastic parts
RoHS Report for plastic parts

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