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?

What Does Mold Design Mean?

Mold design is important to everyone in the injection molding industry. As you may know, the mold is the component …

High-Quality Manufacturing with Plastic Injection Molding

H.H. Precision Mould is a market leader in plastic injection molding. The firm has more than 30 years of expertise …

Boost Your Online Presence with Top SEO Agency in Malaysia

Ericanfly is a leading digital marketing agency in Malaysia that specializes in search engine optimization (SEO) services. With a strong …

Save Money and Get More Done with iPad Rental Services

In today’s fast-paced world, technology plays a crucial role in both personal and professional life. From staying connected with loved …

Expert Air Compressor Distributors: Providing Top-Quality Equipment and Service

Air compressors are vital equipment for a wide range of industries and are used in various applications, such as powering …

How to Decorate a Venue?

What is the definition of event decor? The small details that make up the setting in which your event takes …

Attempt a Different Contact Lens

Do you adore your contact lenses in every way? Are they still as comfy at the end of the day …

In Singapore in 2022, there will be 8 different types of taxes

Singapore is a country that does not require an introduction. It is not only a popular tourist and expat destination, …