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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 is an ISO9001-2008 certificated plastic injection mold and molding parts manufacturer, we always provide high quality and reasonable price products to the customers, as it is depend on our effective human management. As a Medium company, our management mainly includes Sales Management and Project Management.

Sales Management

Sales Department is important for our company because this dept’s mission is to negotiate business and get many orders for production dept. Human management is good, also integrates Chinese and Western thinking, actions as below:

1). We train new employees on basic knowledge about injection mold and molding parts, business communication skill and other related knowledge. company structure

2). We make business report under sales manager’s guide every week, discuss business situation, learn from each other, also help each other.

3). We also have reward and punishment system, improve salary for employee who do effective work or improve employee’s position, so the employee can get what they want in our company.

4). We often make some activities, such as swimming ,climbing, fishing, sing song in KTV and etc, that’s to say, good work and happy life. So we have a hard working, cooperating, friendly and innovation sales team.

Project Management

Project department is very important for the quality of mold and molding parts, that’s to say, the success of any project is determined by the strength of the project team. Normally this dept include Project Manager, Quality Engineer(s), Manufacturing Engineer(s), Design Engineer(s), Tooling Engineer(s), so these professionals combine their experience in tooling, automation, prototyping and design to provide you with optimized manufacturing solutions.

We also take human management for this dept so some action as below:

1). We train workers every week on mold making technical, injection molding technical, working procedure, quality control, mentality enlighten. So they have much experience in CNC, EDM, Grinder, CMM, Micrometer, wire cut, etc. company management

2). We have meeting under project manager’s guide every day and discuss project, such as mold material, mold design, how to save cost for customers, how to improve molding parts quality, how to solve the problems in mold making and molding parts, etc, also learn from each other and help each other.

3). We just choose good partners to work, such as LKM mold base, MoldMaster, Gunther, ect, so we can control the quality and cost effectively.

4). We also have reward and punishment system, improve salary for employee who do effective work or improve employee’s position, so the employee can get what they want in our company.

5). We often make some activities, such as swimming ,climbing, fishing, etc, that’s to say, good work and happy life. So we have a hard working, cooperating, friendly and innovation project team.

AdditionalSira Certification

We also have human management for other departments, such as R&D Dept, HR, Security Dept, Package Dept, because PTMS work with ISO9001:2008 system but we can also follow TS16949 system if customers need.


PTMS make many projects with high quality, reasonable price and perfect service to our worldwide customers due to human management for all the departments. We also like to share with others and learn from each other's experience in successful management.

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