Gas Assisted Injection Molding Manufacturer

What Is Gas Assisted Injection Molding?

Let’s start simple — gas assist injection molding is an advanced molding process where pressurized nitrogen gas is used during the injection phase to push the molten plastic into the mold cavity.

Instead of completely filling the mold with resin, gas is injected to create hollow sections within thicker areas of the part. This technique reduces part weight, minimizes sink marks, and improves dimensional stability.

In other words, it’s an intelligent twist on traditional injection molding that achieves more with less.

Why Gas Assist Injection Molding Matters

Traditional injection molding is great for solid parts — but what about components that are thick, complex, or large? That’s where gas assist injection molding comes in.

Here’s what makes it special:

• 💡 Reduces Part Weight: Gas creates internal channels, cutting weight by up to 20–30%.

• ⚙️ Eliminates Sink Marks: Perfect surface finishes every time.

• 💰 Saves Material & Cost: Less resin used = lower production costs.

• 🔩 Improves Strength: Gas channels reinforce internal structures without adding mass.

• 🕒 Shorter Cycle Times: Gas accelerates cooling, improving throughput.

• 🌍 Eco-Friendly Manufacturing: Lower energy use and reduced waste.

So, whether you’re designing an automotive handle, TV frame, or industrial housing, this process gives you lightweight, flawless, and durable parts.

Why Choose LXG Injection Molding as Your Gas Assisted Injection Molding Manufacturer?

At LXG Injection Molding, we don’t just offer manufacturing — we offer expertise. As a trusted gas assisted injection molding manufacturer, we’ve helped hundreds of clients move from concept to production with superior results.

Here’s why customers worldwide choose LXG:

✅ Two Decades of Experience: With over 20 years in the industry, our engineering team understands every detail of gas assist injection molding — from part design to tooling optimization.

✅ State-of-the-Art Equipment: We use precision gas injection units and high-performance molding machines that ensure consistency across every production run.

✅ Custom Solutions: Whether you need small runs or mass production, we tailor our approach to meet your specific part design, resin selection, and cost goals.

✅ In-House Tooling & Design: We design and build molds in-house, ensuring your gas mark injection molding project meets the highest standards for accuracy and performance.

✅ Global Delivery: With molds and parts delivered to over 40+ countries, we are a truly international partner.

✅ Certified Quality: ISO 9001 and ISO 13485 certified manufacturing ensures that every product leaving our facility meets the strictest industry requirements.

Our Gas Assist Injection Molding Process — Step by Step

Let’s walk you through how LXG Injection Molding turns your design into reality using gas-assisted technology:

1. Design Consultation & DFM Review

Our process begins with a deep dive into your product’s requirements. We analyze wall thickness, rib structures, material flow, and gas channel pathways to ensure the design is ideal for gas assist injection molding.

2. Mold Design & Tooling Fabrication

Next, our mold design team creates advanced gas mark injection molding tools using CAD/CAM software and precision CNC machining. Every gas channel and valve location is carefully engineered for perfect flow control.

3. Injection & Gas Assist Phase

Molten resin is injected into the cavity, followed by high-pressure nitrogen gas. The gas pushes the plastic to fill all corners, hollowing thick areas to form smooth internal channels.

4. Cooling & Ejection

The gas maintains pressure as the part cools, preventing warpage and sink marks. Once solidified, the part is ejected, ready for finishing or assembly.

5. Finishing & Quality Inspection

Each part undergoes CMM inspection, FAI (First Article Inspection), and visual checks to ensure perfect surface finish and dimensional precision.

👉 The result: lightweight, durable, and aesthetically flawless parts — ready for assembly or sale.

Industries That Benefit from Gas Assist Injection Molding

Our gas assisted injection molding services are used across a wide range of industries. If your components require high strength, low weight, and flawless finish — this process is for you.

Automotive Industry

• Door handles, grab bars, armrests, and instrument panels

• Weight reduction improves fuel efficiency

• Eliminates sink marks in thick plastic areas

Consumer Electronics

• TV frames, monitor housings, appliance handles

• Strong yet lightweight designs for better usability

Furniture & Home Goods

• Chair arms, legs, and large decorative panels

• Gas channels eliminate surface distortion

Medical Equipment

• Handles, brackets, and casings with ergonomic and clean surfaces

• ISO 13485 compliant gas assist injection molding manufacturer

Industrial & Power Tools

• Strong, hollow tool housings

• Reduced material consumption, improved balance

Materials Used in Gas Assisted Injection Molding

We work with a wide variety of thermoplastic resins optimized for gas-assisted molding, including:

• ABS (Acrylonitrile Butadiene Styrene)

• PC (Polycarbonate)

• PA6/PA66 (Nylon)

• PP (Polypropylene)

• PBT (Polybutylene Terephthalate)

• PC+ABS blends

• Glass-filled engineering plastics

Our engineers help you choose the right material for your application — balancing aesthetics, cost, and performance.

Gas Assist Injection Molding vs. Conventional Injection Molding

👉 Simply put, gas assist injection molding delivers better performance and higher efficiency for the same or lower cost.

Our Capabilities

At LXG Injection Molding, our capabilities extend far beyond just molding parts. We manage your project from start to finish:

• In-house gas-assisted mold design and manufacturing

• Prototype to production runs

• Multi-material and overmolding options

• Precision finishing and assembly

• Global logistics and delivery support

No matter the complexity, our team delivers on time and on budget.

Why Global Clients Choose LXG Injection Molding

• 20+ years of experience as a gas assisted injection molding manufacturer

• 3,000+ molds built for clients across 40+ countries

• Full-service design, tooling, and production under one roof

• ISO-certified quality systems

• Competitive pricing and fast turnaround

• Proven success across multiple industries

Our customers choose us because we make manufacturing simple, transparent, and reliable.

Common Questions About Gas Assist Injection Molding

Q1: What are typical applications for gas assist injection molding?
This process is ideal for automotive parts, handles, frames, enclosures, furniture, and any thick-walled plastic components that require lightweight strength.

Q2: Can gas assist be used for small parts?
Yes. Though best for medium to large parts, it can also enhance smaller items by improving rigidity and reducing defects.

Q3: Is it expensive compared to regular molding?
While the tooling is slightly more complex, you save significantly on material and production time — making it cost-effective long-term.

Q4: What gases are used?
We primarily use high-pressure nitrogen, as it is clean, non-reactive, and safe.

Q5: How can I order or start a project?
You can contact our team via lxginjectionmolding.com to discuss your project, get a quote, and start your mold design immediately.

Partner with LXG Injection Molding — Your Gas Assisted Injection Molding Manufacturer

If you’re ready to reduce weight, cut costs, and improve product quality — it’s time to move to gas assist injection molding.

At LXG Injection Molding, we bring your product to life faster, smarter, and stronger with precision gas mark injection molding solutions that exceed expectations.

👉 Get in Touch Today to request a quote, share your design, or discuss your next manufacturing project.