Gas Assist Injection Molding China

Richfields usually uses Gas Assist Injection Molding in China for plastic parts that are larger or thinner than the usual industry standards. This is a widely-used method used to manufacture products, where Richfields can produce lightweight yet sturdy components with improved surface quality and dimensional accuracy.

What is Gas Assist Injection Molding?

Gas Assist Injection Molding is a more advanced type of the traditional injection molding process where, in addition to injecting molten plastic into the mold, nitrogen gas is introduced under controlled high pressure during the molding cycle. Unlike standard injection molding, which fills the entire mold cavity with solid plastic, gas-assist molding uses nitrogen gas to push the molten resin deeper into the mold. This creates a hollow core inside the part, allowing for thicker outer walls while reducing material use and overall weight.

As the resin is heated and injected through runners, gates, and sprues, the low-pressure nitrogen gas is injected through a small tunnel to help the plastic flow more precisely into the mold’s intricate shapes. This results in parts with enhanced surface quality, improved dimensional accuracy, and greater structural strength—especially useful for producing thicker sections and larger components without sacrificing design integrity or durability.

The process is suitable for both small and large-scale products, enabling manufacturers to create lightweight, durable plastic parts efficiently.

Benefits of Gas Assist Injection Molding in China

There are numerous benefits to using Gas Assist Injection Molding, making it a popular choice for plastic manufacturing in China and beyond. These include, but are not limited to:

Better Part Quality: The process produces parts with better dimensional accuracy and less warping, resulting in high-quality components that meet strict design and performance standards.

Faster Mold Production Cycle Time: Gas assist injection molding also significantly speeds up the cycle times because the gas helps push the molten plastic through the mold more efficiently—which means manufacturers can achieve higher output in less time.

Improved Surface Texture: This process also produces smoother and more aesthetically pleasing finishes without the need for extra post-processing.

Reduced Usage of Plastic Materials: By creating hollow sections within parts, this method reduces the amount of plastic material used, leading to lighter products and significant material savings.

Savings on Expenses: With the material savings through the reduced usage of plastic materials, they translate into lower production costs, making the process both cost-effective and environmentally friendly.

Experience Precision and Efficiency with Richfields’ Gas Assist Injection Molding Services

The result is a more sustainable production process due to less stress and wear and tear on the tool. Surface texture is improved because with Gas Assisted Injection Molding, sink marks are eliminated. Contact Us today to know how you can increase production output and save on production costs!