Plastic Injection Molding

Plastic Injection MoldingPlastic injection molding is a complex manufacturing process. However, it is also one of the most widely used manufacturing processes for plastic parts. During the process, specialized machinery melts, injects, and sets plastic within a metal mold of the desired part. At Mack Prototype, located in Gardner, MA, our team specializes in the low-volume production of complex small- to medium-sized parts for medical, industrial, defense, and consumer markets.

There are many reasons why plastic injection molding, is a preferred manufacturing process. Some of these reasons include:

  • Flexibility to produce a wide range of components out of a variety of standard and specialty thermoplastics.
  • Ability to repeatedly produce high-quality and accurate components.
  • Cost-effectiveness manufacturing for parts produced in high volumes.
  • Rapid manufacturing of parts once a mold has been produced.
  • Can select from custom colors and textures.

Generally, the process of plastic injection molding begins with selecting the right thermoplastic. Some plastics like ABS are selected for tensile strength and rigidity, while materials like nylons may be selected for temperature and chemical resistance. Next, the thermoplastic is fed into the machine and melted. Melted plastic is then injected into the mold, cooled, and held until it has set.

For clients requiring production volumes that range from 100 to 50,000 parts per year, our plastic injection molding services are uniquely suited for these needs. We work with each client to determine the right tooling strategy for the project, which can range from rapid prototype tools, production tools, single, multi-cavity, stand-alone, modular unit die, and aluminum or steel. Requirements such as part tolerances, size, material, timing, and volume are often the deciding factors that the type of tooling strategy relies on.

If you’re looking to learn more about Mack Prototype’s plastic injection molding service, contact our team to receive a quote today.