Category Archives: custom plastic molds

Custom Plastic Injection Mold Making

 

A custom plastic injection mold maker has expertise with designing a plastic injection mold to manufacture a unique plastic part.  Custom injection mold making is used in several industries, especially those requiring new parts with new model releases such as the Automotive Industry.

 

When new projects require complex parts that fit into existing assemblies, or critical components used in interior automotive parts, you need a precision custom plastic injection mold making company.  At Michiana Global Mold, no part is too complex.  We excel at designing and manufacturing precision, tight tolerance, custom designed molds for critical components.  Our specialty is providing quality precision tools for complex, custom parts.  

 

Michiana Global Mold employs highly skilled designers and engineers, utilizing the latest technology to design the perfect tool for your complex part requirements.   Using Unigraphics software, we can create 2D and 3D models of the optimum design, quickly identifying critical dimensional areas prior to cutting steel.

 

Our designers and journeyman mold makers have vast experience designing complex tooling, even molds that require cam action or customized ejection systems.   Your custom injection mold will be designed to run in your press, and within your unique environment.   We’ll take your water lines and mounting plate into consideration for optimum placement, avoiding any future discrepancies with a smooth-running mold.

 

Full Service Injection Mold Making Supplier

 

Michiana Global Mold is a full-service injection mold making company, with over 600 years of combined experience.   Our knowledge, expertise with mold making, and vast resources give us the opportunity to provide the best value to our customers.  

 

We have a partnership with Modular Mold Solutions, located in China, giving us the ability to source tools overseas while still providing the same quality that you expect from a superior domestic mold making supplier.   

 

Both of our locations, in China and here in the US, are registered to ISO9001, following a strict quality policy in all processes.   We practice continual improvement on a regular basis, passing savings onto our customers with improved efficiencies and consistent quality.  

 

 

Michiana Global Mold is a full-service injection mold making company, providing high performance plastic and rubber molds to a multitude of industries including automotive, consumer products and electronics since 1964.  Contact us today to learn about our  free design consultation  and multi-tool discount for high volume projects.  

Designing and Building Complex Three-Plate Tools

 

 

Experienced mold designers must know how to adapt to challenging geometrical dimensional specifications.  Employing a three-plate tool can be a solution when searching for an ideal gate location, or when multiple gate locations are necessary.  

 

A three-plate tool has an additional stripper plate acting as a buffer between the injecting plate containing the multiple gate locations, and the B plate housing the cavities to mold the parts.  With this precision design, the sprue is ejected in between the first and second plates, and parts eject in between the second and third plates.  This allows for the parts and runner to separate, and is easily adapted with any automated auxiliary equipment just like any other mold and ejection system.

 

A Three-plate tool design can provide a more consistent flow to cavities with multiple gates, without the need for a hot-runner tool.  In most cases a three-plate tool will be less expensive than a true hot-runner tool, but still provide the increased pressure to fill and pack critical dimensional areas with an even flow of material.  This is beneficial in areas containing thin walls or tight tolerances.  

 

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Michiana Global Mold has vast experience designing and building complex three-plate tools for various industries, including the demanding quality standards of the Automotive industry.  We have experience building three-plate tools, hot-runner tools, hot-to-cold tools, MUD units, Prototype Tools, Shuttle Molds, and more.  

Our vast resources allow us to provide you with complete service from design to mold construction and even product sampling.  We follow a strict quality policy, adhering all processes to our ISO9001 registration.  Our experience and resources allow us to provide quick turn-around on single or multi-tool projects.  

Contact Michiana Global Mold today for a free design consultation, and to learn more about our innovative and technologically advanced mold building capabilities.  We have what it takes to be an integral part of your valuable supply chain, providing solutions to your mold building projects with quality built tools, delivered on time and to your specification.

Finding a Chinese Injection Mold Provider Consideration List

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Searching for a China injection mold provider can be incredibly difficult and time consuming. There are plenty of blogs and articles that cover different aspects of what you need to consider, but you”ll need a list. This ensures that you look at all of your potential China injection mold source options and the range of questions you need to ask.

Remember, the cost is not your only consideration. Things like shipping time, communication, and QA process play very important roles in determining if a particular China injection mold provider is cost effective.

Your Sourcing Options

You have three options for finding a provider in China:

  • Direct Chinese source
  • Broker who recommend and negotiates with a Chinese source on your behalf
  • Domestic provider with a Chinese partner

Initially, this list appears to reflect the cost in ascending order. A direct source will often appear to be the most cost effective source and a domestic partner will appear to be the least cost effective.

However, when you take the following considerations into account, you will see the initial cost for the domestic provider has some distinct advantages, including easier negotiations, design time, and predictable delivery times.

Considerations and Questions

When you talk to each of your potential sourcing options, the following considerations and questions will help you determine if the source is likely to meet your needs.

Communication

This is one of the biggest potential issues, particularly during the design phase. You need to be able to talk to the people who are responsible for the designs. There are several potential communication issues to consider:

  • Time zones can pose a problem if you work directly with someone in China
  • Designs can be more difficult to finalize when you cannot speak directly to one of the professionals working on the design
  • Shipping times may be off because of holidays, so you need to know the production schedule for the entire time your product is being processed

Planning

Planning is one of the most important aspects as it sets the tone for the entire project. Here are the things to consider for the planning phase:

  • Materials
  • Design time
  • Production time frame

Quality Assurance and Shipping

Make sure that you discuss your QA needs and shipping expectations. If you are working on a tight deadline, you need to make sure that the product is high quality and can be turned around quickly.

Injection Mold Types: Cold runner molds

 

Cold runner molds are often used for different plastic injection mold processes. Heated plastic is cooled before it passes from the nozzle to the cavity. Once it is through this part of the process, both the part and the material are  ejected from the system. Compared with the  hot runner mold process, cold runner molds area  considerably cheaper and simpler alternative for smaller projects.

 

Components and Process

The average cold runner system can have either two or three plate molds. In two plate systems, there is a parting line that divides the mold in two.

Systems that have three plates have two of these lines so that the mold splits into three different sections once the part is ejected. Though more difficult, three plates offer more flexibility, as well as having more gates when directed  by the final requirements.

 

Things to Consider

When you begin with cold runner molds, here are some additional things to consider:

  • Thicker dimensions than the starting component will allow the heated plastics to be added during the cooling process.
  • Round runner is the most common cold runner system design. It is a two-plate system with each plate containing exactly half of the runner’s diameter.
  • Round trapezoid is another design; it allows for the milling of the cavity (or core side) of the tool.
  • Gates are important to the process as a primary reason for choosing this particular system. They are removed from the part once the mold opens or once the part ejects from it.