top of page
goodLONG auto big shot top.jpg

Automotive Injection Molding & Assembly

In the fast-evolving automotive landscape, superior components are a necessity. Infinity delivers robust, lightweight, and dimensionally critical solutions for the modern vehicle.

Since product programs can last for a decade or more, choosing a financially stable partner with a long-term vision is critical. A supplier with a proven history of stable operation and consistent reinvestment in technology, like automation and new presses, provides confidence that your significant tooling investment is secure. This protects you from the costly and disruptive process of changing suppliers mid-program and ensures you have a partner who will be there to support your product for its entire lifecycle.

goodLONG auto big shot top.jpg

Automotive Injection Molding & Assembly

In the fast-evolving automotive landscape, superior components are a necessity. Infinity delivers robust, lightweight, and dimensionally critical solutions for the modern vehicle.

Since product programs can last for a decade or more, choosing a financially stable partner with a long-term vision is critical. A supplier with a proven history of stable operation and consistent reinvestment in technology, like automation and new presses, provides confidence that your significant tooling investment is secure. This protects you from the costly and disruptive process of changing suppliers mid-program and ensures you have a partner who will be there to support your product for its entire lifecycle.

IATF 16949

goodLONG medical big shot top.jpg

Medical & Healthcare Molding

At our core, we are your dedicated partners in bringing vital medical and healthcare products to life. We combine a friendly, supportive approach with the high-tech precision your project deserves, all centered around our state-of-the-art ISO 8 Class 100,000 cleanroom.

 

Think of us as an extension of your team; we handle everything from molding and assembly to final packaging and sterilization management, so you can focus on the bigger picture. Whether you're developing surgical components, diagnostic tools, or orthopedic devices, we are committed to making your project a success with the quality and care it requires.

Automotive Injection Molding: Precision, Performance, Partnership

Global automotive manufacturers and Tier 1 suppliers trust Infinity because we are more than just a molder—we are a dedicated engineering partner. Our commitment is to provide unparalleled service from initial design to final delivery. We deliver competitive per-unit costs and efficient lead times for your injection molded components without ever compromising on the quality, durability, and consistency that define the Infinity standard.

 

Our End-to-End Automotive Molding Process

 

We've refined our process to be collaborative, transparent, and built for speed and precision. We handle every stage to simplify your supply chain and ensure a flawless outcome.

1. Engineering & Design Validation  - Our process begins with a deep dive into your project specifications. Our engineering team partners with yours, using CAD and Mold Flow analysis to optimize the part design for manufacturability. Through experienced and trusted partners, we can have parts 3D printed for rapid prototyping, allowing you to test for fit, form and function before any tooling is made. This critical first step eliminates risks and accelerates your development timeline.

2. Precision Tooling - We design and engineer robust, injection molds built for longevity and precision. Whether your project requires complex geometries, multiple cavities for small components, or a flawless Class 'A' surface finish, our expertise ensures the tool is perfect. We manage the entire tooling process to guarantee the final mold meets our exacting standards and is ready for high-volume production.

3. State-of-the-Art Production - Your parts are produced in our advanced manufacturing facility. Thermoplastic material is injected into the mold under immense pressure using state-of-the-art presses, capturing every detail with perfect accuracy. We leverage automation with robotics to maximize efficiency, ensure part-to-part consistency, and lower your costs.

4. Finishing & Assembly -  Once molded, components are inspected and sent for any required value-added services. This includes everything from insert molding to custom laser marking to full assembly, providing you with a component that is ready for your use.​

 

Materials We Use & Components We Produce

 

Our team will help you select the ideal thermoplastic for your specific application, balancing performance requirements with cost-effectiveness.

Common Materials Include:

ABS (Acrylonitrile Butadiene Styrene)

Polycarbonate (PC)

Polypropylene (PP)

Nylon

PPS

Acetal

PPA

PBT

Typical Automotive Components:

Interior: Knobs, dials, bezels, door handles, air vents, and structural components.

Under-the-Hood: Housings, covers, and other components requiring heat and chemical resistance.

Exterior: Non-structural elements, trim, and badging.

ECU Housings
Covers
Plates
Buffer Plates
Fuel Connectors
Impellers
Slingers
Enclosure Lids
Living Hinge Housing
Filter Reinforcements
Pump Bodies
Coolant Tubes / Fittings
Electrical Terminal Blocks
Drive Bushings
Pedal Brackets
Functional Gears / Actuators
Motor End Caps
Bulb Sockets

 

In-house toolroom and skilled tool builders

Having a dedicated, in-house tooling and maintenance department is critical because it gives us complete control over the heart of the production process—your injection mold. This control is the key to minimizing costly downtime, allowing our on-site experts to perform immediate repairs and proactive maintenance in hours, not the days or weeks required when shipping a tool to an external shop. This hands-on approach directly enhances part quality and consistency, extends the life of your significant tooling asset, and significantly lowers your total cost of ownership. Ultimately, it provides a single point of accountability, ensuring problems are solved swiftly without finger-pointing and solidifying our role as a more reliable, efficient, and cost-effective manufacturing partner for the long term.

Expert Design & Prototyping support

Expert Design & Prototyping Support 

 

We'll partner with you from the earliest stages to ensure your design is fully optimized for flawless production, saving you time and money down the line. Our support process is designed to eliminate surprises and accelerate your project's timeline.

  • CAD (Computer-Aided Design): Our team works directly with your 2D or 3D files to refine part geometry, ensure tight tolerances, and confirm overall manufacturability.

  • Mold Flow & Cool Analysis: Using advanced simulation software, we predict exactly how material will flow and cool within the tool. As demonstrated in the animation above, this allows us to identify potential defects and optimize the process before cutting any steel.

  • Rapid Prototyping: Utilizing experienced and trusted partners we can create functional prototypes quickly. This crucial step allows your team to physically test the component for proper fit, form, and function.

  • Infinity_Molding_Main_Plant_Aerial_View.jpg

    Financial Stability and Long-Term Vision
    Automotive programs can last 7-10 years or more. The "most important feature" is a supplier who will still be in business, investing in technology, and supporting your program on year seven, not just on day one.

    • Key Feature: A long history of stable operation and investment in technology (like automation, robotics, and new presses).

    • What it means for you: You can be confident that your tooling investment is safe and that you won't be forced into a costly and disruptive supplier change mid-program.

       

  • Infinity_Molding_Main_Plant_Aerial_View.jpg

    A Rock-Solid Quality Management System (QMS)

     

    This is the non-negotiable core of reliability. It’s the documented proof that a supplier has the processes and discipline to meet the extreme demands of the automotive industry.

    • Key Feature: IATF 16949 Certification. This is the global standard for automotive quality. A supplier without it is not a serious contender for a new automotive program.

    • What it means for you: They adhere to rigorous processes for Advanced Quality Planning (APQP), manage risk, ensure full part traceability, and can execute a flawless Production Part Approval Process (PPAP). This system is your primary defense against defects.

  • Infinity_Molding_Main_Plant_Aerial_View.jpg

    In-House Tooling & Maintenance Capabilities

     

    The injection mold is your most critical asset in the production process. A supplier who controls its design, build, and maintenance in-house has a massive advantage in reliability.

    • Key Feature: A dedicated, on-site toolroom.

    • What it means for you: Minimized downtime. When a tool needs repair or maintenance, it's done in hours, not weeks. This protects your production schedule. It also means single-point accountability; there is no finger-pointing between the molder and an outside tool shop.

  • Infinity_Molding_Main_Plant_Aerial_View.jpg

    Deep Engineering Expertise & True Partnership

     

    A reliable supplier doesn't just take your CAD file and press "go." They act as an engineering partner to ensure your part is optimized for success before production ever begins.

    • Key Feature: Proactive Design for Manufacturability (DFM) support.

    • What it means for you: They'll analyze your design using tools like Mold Flow analysis to predict and solve potential issues, suggest material changes to improve performance or lower cost, and collaborate with your team to create a more robust and efficient component. This prevents costly tool changes and production delays down the line.

  • Infinity_Molding_Main_Plant_Aerial_View.jpg

    The shift from metal to plastic in the automotive industry is driven by clear advantages. Engineering-grade polymers offer lightweight, durable, and high-performing alternatives that improve fuel efficiency and resist impact. Injection molding is the premier process for manufacturing these parts at scale.

    • High-Volume Production: Heavy-duty steel tooling is built to last for millions of cycles. This reusability dramatically reduces the per-unit cost for large production runs.

    • Complex Geometries: This process excels at producing highly detailed parts with varying thicknesses, sharp angles, and intricate features that other methods can't achieve.

    • Unmatched Consistency: Injection molding is a highly repeatable process, ensuring that the ten-thousandth part is identical to the first.

    • Material Versatility: An enormous range of thermoplastics is available, allowing you to select the perfect material for properties like UV resistance, impact strength, or heat deflection.

bottom of page