From engine components to dashboards and transmissions, Automotive Part Manufacturing in St. Louis, MO, remains a foundation of our work at Roberson Machine Company. With deep roots in industry-spanning projects, we offer reliable, high-precision solutions.
To help you better understand the connection between CNC machining and automotive manufacturing, this section will examine:
- Primary automotive applications of CNC machining
- Typical materials used in machining automotive components
- Machining processes optimized for the auto industry
- The advantages of partnering with Roberson Machine Company
Call our team today at 573-646-3996 or contact us online to learn more about St. Louis, MO, Automotive Part Manufacturing and our other services.
St. Louis, MO, Automotive Part Manufacturing: Real-World CNC Applications
From custom brackets to engine components, CNC machining is crucial in automotive manufacturing. Roberson Machine Company works with Tier 1–3 Suppliers, small businesses, and other collaborators to deliver accurate, production-ready parts at scale. In the automotive sector, typical CNC machining applications include:
- Powertrain Components: For parts like crankshafts, cylinder heads, and transmission housings, CNC machining delivers the extreme precision necessary for optimal performance, efficiency, and reliability, meeting the exacting tolerances these components require.
- Suspension & Steering Systems: Components like control arms, knuckles, and linkages require a precise balance of weight, strength, and dimensional accuracy. Roberson’s machining capabilities ensure each part performs reliably and withstands the test of time.
- Brake System Parts: Components like caliper mounts, rotors, and pedals are machined with precision to guarantee safety and smooth operation. The right surface finish, tight tolerances, and geometry are critical for reliable braking performance.
- Interior & Dashboard Hardware: CNC machining is essential for producing both functional and design-focused components in the cabin, including gear shifters, infotainment brackets, and dashboard support structures.
- Prototyping & R&D: CNC-machined prototypes are a crucial step in testing component functionality, performance, and safety before full production. Roberson supports the transition from CAD designs to physical prototypes, enabling teams to innovate and validate their designs efficiently.
- Electric Vehicle (EV) Components: As EV production grows, CNC machining supports battery housings, cooling plates, and custom mounts for electric drive units—all requiring new levels of design complexity and material considerations.
- Autonomous Vehicle Systems: CNC machining is critical for producing precision parts for sensors, control modules, and structural components in autonomous vehicles, ensuring optimal reliability and performance in advanced driving systems.
- Performance & Aftermarket Parts: CNC machining allows for the creation of custom performance parts, including intake manifolds, exhaust headers, and suspension upgrades, designed for enthusiasts looking to boost vehicle performance and style.
Roberson’s automotive part manufacturing services are engineered to meet the industry’s exacting standards—whether you’re producing five parts or five thousand. Our focus remains on precision, consistency, and quality in every batch.
Types of Materials We Use for St. Louis, MO, Automotive CNC Manufacturing
In the automotive industry, material selection is crucial for the performance, safety, and durability of vehicle parts. At Roberson Machine Company, we draw on a wide range of metals and plastics, each selected for its unique attributes—strength, weight, corrosion resistance, and machinability—to meet the specific needs of automotive applications. This includes:
- Aluminum (6061, 7075, 7050): Aluminum alloys are lightweight and resistant to corrosion, making them an excellent choice for engine components, suspension parts, and housings. High-strength alloys like 7075 are often used in performance and motorsports applications for their durability.
- Stainless Steel (303, 304, 316, 321, 420SS, 416, 440): Known for strength and corrosion resistance, stainless steels are used in everything from exhaust systems to fasteners and drivetrain components. Hardened grades like 440 offer excellent wear resistance.
- Plastics (Delrin, PETGs, Nylon, PLAs, PEEK, HDPE, Glass-Filled Nylon): Ideal for lightweight, non-structural applications like bushings and gears, these plastics offer versatility. Materials like PEEK are known for their resistance to high temperatures and chemicals.
- Brass: Ideal for fittings, bushings, and valves due to its machinability and corrosion resistance. Commonly found in fluid-handling systems and connectors.
- Titanium: Lightweight and exceptionally strong, titanium is used in performance applications where strength-to-weight ratio is critical, such as exhaust parts and racing components.
Our team understands the unique requirements of automotive environments and can assist in choosing the right material for each part—whether you’re refining prototypes or preparing for large-scale production. Contact us to find out more about our machining services.

Key Services for St. Louis, MO, Automotive Part Manufacturing
- Precision CNC Machining: With advanced equipment and skilled operators, Roberson Machine Company delivers high-tolerance, tight-spec components with excellent surface finishes—crucial for performance, safety, and reliability in automotive systems.
- Advanced Multi-Axis CNC Milling and Turning: From basic 3-axis to sophisticated 5-axis machining, we can produce complex geometries and detailed features essential for modern engine, transmission, and suspension components.
- Wire EDM: Offering unparalleled precision, Wire EDM delivers ultra-accurate cuts and complex internal features, making it perfect for specialty parts such as fuel system components and precision brackets.
- Prototype to Production: We support your entire project lifecycle—from quick-turn prototypes for design validation to high-volume CNC production runs—with consistent quality and traceability.
- Value-Added Services: Beyond machining, we offer a range of services including welding, fabrication, deburring, bead blasting, and assembly, all aimed at optimizing your supply chain and reducing time to market.
At Roberson Machine Company, we provide complete CNC solutions for the automotive industry, supporting you from concept through to completion. Our team ensures precision, efficiency, and exceptional quality whether you’re working on a prototype or scaling for full production.
Why Choose Roberson for St. Louis, MO, Automotive Part Manufacturing?
At Roberson, we specialize in crafting precision products that get the job done. Here are just a few reasons why you should contact Roberson Machine Company:
- Operational Cost Reduction: Partnering with our experienced team allows you to bypass the expenses related to setting up and maintaining production facilities. Our existing infrastructure ensures efficient manufacturing processes, enabling you to focus resources on core business activities while maximizing profitability.
- Expert-Crafted Solutions: Tap into our vast CNC machining expertise and industry-specific understanding. Our dedicated team delivers precise, customized solutions that align with your project’s goals.
- Uncompromising Quality: We deliver components that adhere to stringent automotive tolerances and specifications. Our commitment to excellence is underscored by our certifications.
- Commitment to Partnership: We believe in being more than just a supplier—we are your reliable partner. By ensuring clear communication and dependable results, we nurture lasting relationships across all types of projects.
- Innovation in Focus: Let us manage the complexities of production, so you can concentrate on refining design, enhancing performance, and ensuring timely market delivery.
- Flexible Capabilities: From custom prototypes to large-scale production, our scalable systems adjust to meet your requirements. Our broad industry experience allows us to offer material and process savings directly to you.
Other services Roberson offers include:
- Custom CNC Machining for Part Production
- CNC Machine Automation
- Oil and Gas Precision Machining
- Aerospace Manufacturing
- EDM Machining
- High Volume CNC Machining
- Industrial Automation
- Solar Panel Manufacturers
- Microscope Parts Precision Machining
Ready to learn more about automotive CNC part manufacturing and machining? Don’t hesitate to give us a call today at 573-646-3996 or contact us online to learn more about St. Louis, MO, Automotive Part Manufacturing and how our experts can help.

