Gas assisted injection molding

Copy of template 1200 x 600 (12)

Gas assist injection molding is a process enhancement to conventional injection molding, involving the injection of high-pressure nitrogen gas into the melt stream immediately after the injection of the resin. The intent is not to cause a mixture of nitrogen and resin, but for the nitrogen to displace resin in flow or gas channels and thicker sections of the molded product. The process is a high speed, low-pressure injection method. In most cases, a short shot method of resin fill can be used and the gas can be utilized to fill and pack out the remainder of the part. The nitrogen is typically shot into the process at relatively low pressures as compared to conventional molding.

There are four primary considerations for successful application of the technology:

1) A repeatable and accurate shot control on the injection-molding machine.

2) Precise control of time, pressure, and ramp of the nitrogen being injected.

3) Control of the nitrogen penetration within the molded product.

4) Proper tool design.

The advantages of the gas assisted injection technologies:

  • Achieve thicker wall sections
  • Lower Piece Price
  • Better Part Quality
  • Shorter Cycle Times
  • Greater Design Freedom
  • Better surface cosmetics
  • Reduce finishing and painting
  • Elimination of sink & warp
  • Better dimensional control
  • Increased design options for complex parts, reducing multiple part assemblies, and metal to plastic conversions
  • Enables use of smaller plastic injection molding presses
  • Reinforces ribbed parts

For more information about Gas Assist Injection Molding, please visit

Get a FREE 1-to-1 SEO Service Consultation

Fill up below and we will get back to you a FREE 1-to-1 SEO Service consultation on how to grow your business in Google!

Latest News

What’s New in Supplier Directory?

Are there natural alternatives to sleeping pills in Malaysia?

Discover restful nights and rejuvenated mornings with Melatonin, a natural sleep aid now available in Malaysia. Their sleeping pills are …

How long does an exhaust silencer last?

Welcome to Silencers Malaysia, brought to you by the KSM Group! We are here to introduce you to their range …

How to Make Your Used Notebook Last Longer

Exportcel is offering used notebooks for sale. These notebooks have been previously owned but are still in good condition. If …

How Do You Secure A Motorcycle Cover?

Motomate is excited to present their motorcycle cover sets! If you own a motorcycle and want to keep it safe …

What is the important role of motor parts?

Motor parts are really important for making machines work. They’re especially needed in things that move or change energy. These …

How Does Pressure Affect Production in Injection Molding?

Injection molding, a straightforward plastic production method, relies heavily on precise process control, as the process parameters significantly influence production …

9 General SEO Benefits You Need to Know

The following is a discussion of 9 benefits of SEO in general that business website owners need to know. If …

What is an Article Spinner? How does it work?

What is an Article Spinner? Article spinner or article spinning is an SEO optimization technique that is carried out by …