We handle:

• Engine blocks
• Exhaust manifolds
• Gear housings
• Pump parts
• Machinery frames
• Industrial castings
• Grates and fences

From farm equipment to commercial machinery, our cast iron welding process brings strength and function back to your parts.

Cast Iron Welding Techniques We Use

We apply proven methods depending on the application and material type:

• MIG and stick welding onto cast iron with nickel or high-nickel rods
• Cold welding techniques for thin or sensitive castings
• Preheating and slow cool-down to prevent thermal shock
• Post-weld grinding and finishing for fit and appearance

Every job is assessed individually. We determine whether your part requires full weld repair, reinforcement, or complete replacement.

Plasma Cutting Cast Iron

In some cases, cast iron components need to be reshaped, trimmed, or separated. We offer precise plasma cutting for cast iron, allowing us to:

• Remove cracked or damaged sections
• Cut access holes or ports
• Resize existing cast components
• Prepare surfaces for fabrication

Our plasma equipment cuts through cast iron cleanly and accurately without creating excess stress or heat damage.

On-Site Cast Iron Repair

We are a mobile welding team. That means you don’t need to remove or transport heavy cast iron parts. We bring all tools and equipment to your location. Whether you’re on a farm, at a job site, or in a commercial garage—we come prepared.

No need to wait for a machine shop or risk extra downtime. We offer fast response and field repair, minimizing disruption to your operations.

Cast Iron Repair Done Right

We take the time to evaluate the part and determine the right solution. Some cracks can be welded directly. Others may need to be drilled and pinned. Our team uses tested procedures to prevent re-cracking and ensure maximum strength.

You can rely on us for honest advice, quality materials, and solid results.

Need Cast Iron Welding Near Commerce City?

Pegasus Mobile Welding is your local expert in cast iron welding and plasma cutting. With years of hands-on experience, we understand how to handle cast materials the right way.

• Based in Commerce City
• Serving Denver, Aurora, Boulder, and surrounding areas
• Fully mobile service — we come to you
• Competitive pricing and free estimates
• Emergency welding repairs available