SERVICES
Built for High Volume. Backed by 60+ Years of Precision.
We specialize in high-precision machined parts. If you require quality, you have found the right source. Lewis Engineering is dedicated to providing a quality product at a competitive price. This dedication is visible in the CNC turning centers, CNC machining centers, and automatic screw machines available for your job. These machine tools are supported with centerless grinders, broaching machines, and milling machines for auxiliary operations. Our capabilities permit the completion of complex parts with the least number of setups and a minimum amount of time, thus reducing costs.
CNC MACHINING
CNC MILLING
When your project demands high-volume output and tight tolerances, Lewis Engineering delivers. Our CNC machining centers run nonstop with automatic pallet changers and custom-built fixtures that keep parts moving and precision high, no matter the scale. It’s how we meet aggressive production goals without cutting corners on quality.
CNC TURNING
If slow setups and inconsistencies put your production at risk, Lewis Engineering can help keep things moving. Our CNC lathes are built for speed and precision, with live tooling, twin spindles, and rapid tool changes that streamline complex turning and milling in a single setup. The result? More parts out the door, fewer delays, and quality you can count on every single time.
METAL FINISHING
CHROMATE
Lewis Engineering applies clear and yellow zinc chromate coatings in-house to meet strict Mil-Spec requirements. This process improves corrosion resistance and conductivity for steel parts, making it ideal for aerospace, defense, and high-performance industrial applications where reliability is critical.
ZINC PHOSPHATE
Zinc phosphate creates a strong, reliable base layer that improves paint adhesion and corrosion resistance on steel components. Applied to TT-C-490 requirements, it’s a cost-effective solution for parts that require post-finishing durability and long-term performance.
METAL PAINTING
Where outsourcing paint slows you down or leads to inconsistent finishes, Lewis Engineering keeps it in-house. Our team handles high-volume metal painting with custom-built automation for better coverage and faster turnaround. Every finish is salt spray tested on-site to ensure it holds up in the field.
SALT SPRAY TESTING
When corrosion resistance matters, salt spray testing gives you proof. Lewis Engineering performs in-house testing on painted and plated components to verify coating performance and ensure compliance with ASTM B117 and ISO 9227 standards. It’s how we help you avoid costly failures and meet the specs your industry demands.
SPECIALTY OPERATIONS
STAMPING
Need stamped parts at scale? For 60+ years, Lewis Engineering has been known for speed, consistency, and capability. Our stamping department is equipped with presses running from 22 to 300 tons, air-cushioned for compound die work and built for high-volume output. Just send us a drawing, and we’ll take care of the rest.
ASSEMBLY
When your machined part is just one piece of the puzzle, we’re ready to build the whole thing. Lewis Engineering has the tools and systems to handle high-volume assembly – custom drills, dedicated assembly lines, and automated glue applicators. We take care of it all, so your components are delivered complete and production-ready.
WELDING
Lewis Engineering provides both spot welding for high-volume assemblies and precision welding for joining complex parts. By keeping this capability in-house, we eliminate delays, reduce part movement, and ensure consistent weld quality from one unit to the next.
BROACHING
Broaching is a fast, cost-effective way to achieve precise shapes and internal features without tying up CNC machines. We use specialized broach tools to remove material quickly and cleanly, ideal for slots, keyways, and other consistent geometries. It’s a smart solution for customers looking to reduce machining time and simplify production.
LASER ETCHING
Lewis Engineering uses laser etching to permanently mark parts with lot numbers, part numbers, or other identifying information without slowing down your production. Our process delivers clean, legible results on every part, ensuring traceability and compliance with your documentation needs.