High Precision Plastic Injection Molding

Why Precision Matters

Imagine a surgical device that doesn’t fit properly, a car sensor housing that leaks, or a smartphone button that feels loose — all are the result of poor precision.

With high precision plastic injection molding, every part fits perfectly, functions smoothly, and lasts longer. It’s not just about looks — it’s about function, safety, and performance.

Key Processes Behind Precision Molding

At LXG, precision is built into every step:

1. Tooling Design & Simulation – Using advanced CAD/CAM and Moldflow software to predict flow, cooling, and shrinkage.

2. Material Selection – Choosing the right polymers for strength, heat resistance, or flexibility.

3. High Pressure Injection Molding – Controlling pressure and temperature ensures complete cavity fill and dimensional stability.

4. In-Mold Quality Control – Automated sensors monitor pressure, flow, and temperature in real time.

5. Post-Molding Inspection – Every batch is validated using CMM, FAI, and SPC data.

That’s how we maintain precision and repeatability across thousands or millions of parts.

Materials Used in High Precision Plastic Injection Molding

The choice of material plays a huge role in part performance. Here are some of the most common materials used in precision applications:

1. High Density Polyethylene (HDPE) Injection Molding

High density polyethylene injection molding is perfect for producing lightweight, impact-resistant parts. HDPE offers great chemical resistance and toughness, making it ideal for packaging, fluid containers, and industrial components.

2. High Impact Polystyrene (HIPS) Injection Molding

High impact polystyrene injection molding delivers parts that combine stiffness with impact strength. Commonly used in electronics housings, displays, and appliance parts, HIPS offers an excellent surface finish and dimensional stability.

3. High Temperature Injection Molding

For parts exposed to extreme heat — such as under-the-hood automotive components or aerospace connectors — high temperature injection molding uses advanced resins like PEEK, PPS, and Ultem to maintain integrity even above 250°C.

4. High Volume Thermoplastic Injection Molding

When you need millions of consistent, high-performance parts, high volume thermoplastic injection molding ensures scalability and cost efficiency. Materials like nylon, ABS, and PC are commonly used for long production runs.

High Pressure Injection Molding: Power Meets Precision

In high pressure injection molding, molten plastic is injected into the mold at extremely high pressure (up to 20,000 PSI or more).

This guarantees full cavity filling, reduces defects, and improves the density and surface finish of the part. It’s a crucial process for high quality injection molding, especially when working with thick-walled or complex parts.

At LXG Injection Molding, our advanced equipment gives us full control over injection speed, holding pressure, and cooling rates — ensuring every part is flawless from the first to the millionth shot.

High Volume Injection Molding: Scaling Without Compromise

For clients who need large production volumes, high volume injection molding is the most efficient solution.

Whether you need 10,000 or 10 million parts, we maintain precision, cycle after cycle. Using high cavitation injection molding systems (multi-cavity molds), we can produce many identical parts simultaneously — reducing cycle times and overall cost per unit.

Our high cavitation molds are optimized for uniform filling, consistent cooling, and easy part ejection, ensuring every component meets the same high standards.

High Cavitation & High Gate Injection Molding Explained

High Cavitation Injection Molding

This approach uses molds with multiple cavities (sometimes 16, 32, or more) to produce a large number of identical parts in a single cycle. It’s ideal for high volume thermoplastic injection molding projects that demand fast turnaround and cost efficiency.

High Gate Injection Molding

In high gate injection molding, the plastic enters the mold through multiple gates. This method ensures balanced flow, reduced weld lines, and improved dimensional accuracy — critical for parts requiring perfect surface finishes and mechanical integrity.

High Quality Injection Molding Machines: The LXG Advantage

At LXG, we invest in high quality injection molding machines from leading global brands, enabling ultra-stable process control. These machines are designed to handle:

• Micro-level precision (±0.01 mm)

• High pressure injection molding operations

• High temperature materials such as PEEK or Ultem

• Multi-shot and rotation bi-injection molding

This combination of machine precision and process expertise ensures that your project — whether a small prototype or a full-scale production — runs flawlessly.

What Is High Quality Rotation Bi-Injection Molding?

High quality rotation bi-injection mold technology allows two materials or colors to be injected into a single part without secondary operations.

This is perfect for components that need a combination of softness and rigidity — such as grips, handles, buttons, or seals. LXG’s rotary table bi-injection systems ensure perfect bonding and alignment between materials, improving both aesthetics and function.

Industries That Rely on High Precision Injection Molding

Automotive

Precision means safety. LXG manufactures parts like dashboard components, connectors, clips, and sensor housings using high precision plastic injection molding to meet tight automotive tolerances.

Medical & Healthcare

From surgical tools to diagnostic components, we use high temperature injection molding and FDA-approved materials to ensure safety, biocompatibility, and traceability.

Aerospace

Aerospace applications demand lightweight and heat-resistant materials. Our high pressure injection molding systems produce reliable, complex geometries for flight-critical components.

Consumer Electronics

In this sector, aesthetics meet function. LXG’s high precision injection molding provides sleek casings, tight-fitting connectors, and ultra-smooth surfaces.

Industrial Equipment

Durable and robust — our high density polyethylene injection molding and high impact polystyrene injection molding solutions support demanding industrial environments.

Benefits of Choosing LXG Injection Molding

✅ Precision You Can Measure – Ultra-tight tolerances and consistency across production runs.
✅ Speed & Scalability – Rapid prototyping to high volume injection molding under one roof.
✅ Material Expertise – From engineering thermoplastics to biocompatible polymers.
✅ Cost Efficiency – Optimized cycle times and reduced waste.
✅ Quality Assurance – ISO 9001, ISO 13485, and FDA-compliant systems.
✅ Global Experience – 3,000+ molds delivered to 40+ countries.

LXG: Your High Precision Plastic Injection Molding Partner

As a trusted high precision plastic injection molding supplier, we’re more than just a manufacturer — we’re your design, engineering, and production partner.

At LXG Injection Molding, we take pride in helping innovators, engineers, and OEMs launch products faster, smarter, and with superior quality.

Whether you’re developing a prototype or scaling up to mass production, our in-house tooling, high-end machines, and technical expertise make us one of the most reliable high precision plastic injection molding manufacturers in the world.

👉 Visit lxginjectionmolding.com to get an instant quote or start your next precision project today.