Seneca Foundry provides top-notch iron casting services for manufacturers, OEMs, and industrial buyers. Based in Webster City, Iowa, we produce gray iron castings and ductile iron castings for customers who need strong, dependable, American-made parts.
Our foundry has served customers for more than 100 years. We combine hands-on casting experience with modern tools, careful process control, and a strong focus on quality. From early design support to finished castings, our team helps you get the right part for your application.
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Casting Services at a Glance
Here is a quick look at what Seneca Foundry offers:
| Casting Service | Details |
|---|---|
| Casting materials | Gray iron and ductile iron |
| Types of Casting | Custom cast iron parts, replacement parts, prototypes, and production castings |
| Production range | Low-to-medium-volume casting runs |
| Design support | 3D scanning, SolidWorks 3D modeling, and SolidCast |
| Common applications | Agriculture, industrial equipment, construction, athletic equipment, and OEM parts |
| Quality approach | Total Quality Management system |
| Location | Webster City, Iowa |
Custom Cast Iron Parts for Industrial Applications
Seneca Foundry helps turn part designs into strong, reliable iron castings. We work with customers who need replacement parts, new cast components, prototypes, short-run production, or repeat production orders.
We serve a wide range of industries, including agriculture, industrial equipment, construction, pumps and valves, athletic equipment, utility products, municipal products, and custom OEM manufacturing.
Our team reviews your part, design, use, and production goals before recommending the best casting approach.
Low to Medium-Volume Casting Runs
Seneca Foundry is a strong fit for customers who need flexible production.
We support:
- Custom parts
- Replacement parts
- Prototype castings
- Short-run production
- Specialty cast components
- Repeat orders
Our goal is to provide the right casting solution for your needs, not a one-size-fits-all approach.

How Our Iron Casting Process Works
Working with a foundry should feel clear and simple.
1. Review Your Part or Drawing
We review your part, drawing, model, or idea. We consider the shape, material requirements, size, use, and production goals.
2. Recommend the Right Casting Approach
We help choose the right material and casting method. This may include gray iron, ductile iron, green sand casting, or another approach.
3. Support Design and Planning
We use tools like 3D scanning, SolidWorks, and SolidCast to support design review and casting planning.
4. Produce and Inspect the Casting
Seneca Foundry follows a Total Quality Management system to support consistent quality and reliable results.
5. Deliver Reliable Cast Iron Parts
We focus on quality, communication, and castings that meet your project needs.
Additional Casting Services
Seneca Foundry supports customers before, during, and after the casting process. Our team can help with material selection, tooling, sampling, finishing, and quality documentation.
- Pattern and Core Box Support
- Heat Treating (including annealing, normalizing, and stress relief)
- Machining, Plating, and Painting
Affordable Iron Casting Services in Webster City, Iowa
Have a part drawing, sample part, or casting idea?
Send it to Seneca Foundry. Our team can review your project, answer your questions, and help you decide the best next step.
Contact Seneca Foundry today to request a quote for green sand, gray iron, or ductile iron casting services.