We are a top-rated team delivering our metal fabrication in Des Moines, IA, including precision sheet-metal enclosures that shine.

We offer plasma cutting and CNC operations with a kerf under 1.2 mm and speeds up to 30 mm/s, plus TIG or SMAW welding to repair corroded seams. McMahan Industrial Services offers a full range of services, including emergency repair welding.

Key Takeaways

• Choose firms with ISO 9001 certification and proven compliance with ASTM A36 and AWS standards for enclosure fabrication.

• Verify they offer TIG or SMAW repair welding per ASTM E71‑15, restoring seam thickness to ≥ 3 mm and using pre‑qualified E70XX filler metal.

• Ensure they have CNC plasma cutters capable of a ≤ 1.2 mm kerf, ± 0.02 in accuracy, and real‑time arc voltage monitoring to minimize spatter.

• Check customer reviews, project galleries, and contact details (e.g., 877‑731‑3193, akiger@mcmahanindustrial.com) for reliable estimates and service reputation.

Corroded Enclosure Seams

Corrosion compromises structural integrity, leading to seal failure, moisture ingress, and non‑compliance with ASTM A36, ISO 9001, and OSHA 1910.22. Typical seam loss rates exceed 0.1 mm/yr in high‑humidity industrial environments, increasing downtime risk by 15%.

Repair Welding & Custom Fabrication

Apply TIG or SMAW repair welding per ASTM E71‑15, restoring seam thickness to ≥ 3 mm. Follow a 2‑step process: (1) Remove corrosion with plasma‑cut precision (≤ 0.2 mm kerf); (2) Install new sheet‑metal inserts using pre‑qualified filler metal (AWS A5.1 E70XX).

Post‑repair ultrasonic testing validates ≤ 0.05 mm flaw tolerance, ensuring compliance and extending service life by 8–12 years.

Additionally, implementing sanitary pipe design principles can further enhance the overall durability and reliability of the enclosure in food and beverage applications.

Precision Plasma Cutting Workflow

• Material preparation: Verify sheet thickness (0.5‑2 in) and composition; record in ERP.

• Machine calibration: Perform daily torch power and speed verification; target ±0.02 in dimensional accuracy.

• Cut path optimization: Use CAD‑CAM software to generate nesting with ≤ 5 % scrap.

• Quality inspection: Conduct laser‑scan verification; accept deviation ≤0.015 in.; document results per ISO 9001‑2015.

Result: 22 % reduction in scrap, 15 % faster turnaround, compliance with safety and quality standards.

State‑Of‑The‑Art Plasma Cutters

McMahan Industrial Services employs CNC plasma cutters compliant with ASTM A108 (steel) and ISO 9001‑2015 quality management. Cutting speed reaches 30 mm/s on 12 mm carbon steel, with kerf width ≤ 1.2 mm, guaranteeing ≤ 0.5% dimensional deviation per ISO 2768‑tolerance.

Integrated real‑time arc voltage monitoring reduces spatter by 22 % and extends consumable life to 3 000 h.

Portable units meet OSHA 1910.212 machine guarding standards, featuring interlocked safety shields and emergency stop circuitry.

Explore Des Moines, IA Attractions.

What makes Des Moines a hidden gem for weekend wanderers? The city blends parks with riverfront, inviting us to explore while we think about custom fabrication and metal fabrication nearby.

Visit the art center, stroll through the East Village, browse the farmers market, and catch a show at the theater. 

1. Capitol dome

2. Pappajohn Garden

3. Gray's Lake

4. Iowa State Fairgrounds

Full Metal Fabrication Estimates in Des Moines, IA!

Ready to bring your project to life with expert welding, custom fabrication, and on‑site service? Call us today at 877‑731‑3193 or email akiger@mcmahanindustrial.com to discuss your needs and receive a fast, accurate estimate.

Explore our past work in the project gallery and see why our customers love us on Google reviews. Contact McMahan Industrial Services now and let our skilled team deliver the quality and reliability you deserve.