What We Do
Full-Spectrum
Casting Capabilities
From gray and ductile iron to aluminum — from pattern engineering through machining and finishing. Anderson Foundries handles every step so you don't have to manage multiple vendors.
5,000 lb
Max casting weight
ISO 9001
2015 certified
2× AFS
Casting of the Year
Specifications at a Glance
Gray Iron Classes
30, 35, 40, 45
Ductile Iron Grades
60-40-18 · 65-45-12 · 80-55-06
Iron Casting Weight
Ounces to 5,000 lb
Aluminum Casting Weight
Up to 400 lb
Aluminum Processes
Air-set, shell core, permanent mold
Simulation
MAGMA fill & solidification analysis
Tooling
Patterns, core boxes, match plates
Finishing
Machining, powder coating, assembly
Quality
ISO 9001:2015 certified
What We Do
Our Capabilities
From engineering design to finished product — we handle every step.
American-Made · Poured with Precision
Our engineering team uses advanced MAGMA simulation software and CAD/CAM tools to optimize casting design before a single pattern is cut. We identify potential defects early, reduce costly iterations, and ensure your part performs to spec — from the first pour.
- —MAGMA fill and solidification simulation
- —CAD/CAM design and optimization
- —DFM (design for manufacturability) review
- —Prototype to production path planning
Spartan Pattern — Lakeside, MT
Pattern Building & Tooling Production
Most bad castings start with bad tooling. Don't let yours be one of them.
Casting quality begins with the tooling. A poorly engineered pattern can build dimensional variation, core shift, excess finishing, scrap and production delays into every mold. Once production begins, those mistakes multiply.
Don't let inexpensive tooling become the most expensive decision in your casting program.
Through our sister company, Spartan Pattern, Anderson Foundries brings pattern engineering, simulation and production together under one coordinated team. Our experts understand how a pattern must perform inside the foundry — not merely how it should look on a computer screen.
Built Right Before the First Pour
Our pattern and tooling capabilities include:
- Casting-focused pattern design and engineering
- MAGMA casting simulation
- Pattern building and core-box production
- Precision CNC machining
- ExOne 3D sand-printed molds and cores
- Pattern repair, modification and recreation
ExOne 3D Sand Printing
Our ExOne 3D sand printing technology allows us to produce complex molds and cores without traditional tooling, accelerating prototyping and helping prove challenging designs before investing in permanent patterns.
MAGMA Simulation
Spartan Pattern uses MAGMA casting simulation to predict solidification, shrinkage, and defect risk before the first pour — reducing scrap and shortening the path to an approved casting.
Spartan Pattern Services
- Pattern Design & Building
- MAGMA Simulation
- Mold Engineering
- CNC Machining
- Material Selection & Analysis
- Prototyping & Testing
- Welding & Fabrication
- Engineering Consultation
- 100% American-Made
Our Pattern Equipment
Our Pattern Equipment Dominates
Haas GR Series (GR-510)
The Haas GR Series gantry routers are built to deliver powerful, precise cutting performance across a wide range of materials. Whether working with tough metals like aluminum or lighter materials like plastics, these machines excel in both speed and accuracy.
Haas VF Series (VF-6/50)
The VF Series has a 50-taper spindle and a 2-speed gearbox. This machine is ideal for tougher materials and larger cutting tools, giving us the versatility and performance to handle a wide range of tasks.
Real Tooling. Real Results.
Production sand mold pattern
CNC-machined core box
ExOne 3D sand-printed mold
MAGMA simulation and engineering
As a new company, finding reliable suppliers is crucial, and Spartan Pattern exceeded our expectations in every way.
Spartan Pattern Customer
From concept through tooling, sampling and production
Your Casting Is Only as Good as the Tooling Behind It.
We engineer every detail to improve casting quality, reduce unnecessary scrap and shorten the path to an approved part. Work with pattern experts who understand what happens after the metal is poured.
Ready to get your tooling engineered right? Submit your project details and our pattern team will review your requirements.
Pattern inquiries are also sent directly to Kory Anderson.
The Right Foundry for the Right Work
Is Your Casting a Fit?
A high quote does not always mean your casting is unusually expensive. Sometimes it simply means the foundry quoting it is not designed for that type of work.
Anderson Foundries specializes in low-volume, engineering-driven casting programs — particularly prototypes and new-product development.
We're a Great Fit If You:
- Need prototype or low-volume production — up to approximately 2,000 EAU
- Need support from concept and engineering through tooling, sampling, and production
- Need dependable production of raw iron or aluminum castings
- Value responsive communication and hands-on problem solving
- Want one American partner for patterns, engineering, and castings
Probably Not the Right Fit If You:
- Need high-volume, commodity production
- Are sourcing high-end cooking equipment
- Require quantities significantly above 2,000 castings annually
- Are shopping solely for the lowest possible piece price
Which Foundry Is Right for Your Part?
| Capability | Dakota FoundryWebster, SD — Gray & Ductile Iron | Muncie CastingsMuncie, IN — Aluminum |
|---|---|---|
| Material | Grey and ductile iron | Aluminum |
| Casting weight | Up to 5,000 lb | Up to 400 lb |
| Processes | No-Bake, floor molding, limited green sand | Air-set/Isoset, shell cores |
| Best fit | 200–2,000 lb rollover work | Prototype through production |
| Engineering | MAGMA, pattern development, 3D sand printing | Engineering and quality support |
Not Sure Where Your Project Fits?
Send us your drawing, model, or even an early-stage concept. We'll evaluate it honestly and let you know whether Anderson Foundries is the right partner.
Quality Assurance
Quality Isn't Inspected In.
It's Engineered In.
Our commitment to quality is the foundation of every product. Through rigorous process controls, MAGMA simulation, and ISO 9001:2015-certified systems, we deliver castings that meet the tightest tolerances — every time.
Quality at Anderson Foundries is not a final inspection step — it is built into every stage of the process, from alloy selection and MAGMA solidification simulation through dimensional verification and documented final release. ISO 9001:2015 certification covers design, production, inspection, and delivery across all facilities.
MAGMA Simulation
Advanced fill and solidification analysis before a single pattern is cut — problems solved on screen, not on the floor.
ISO 9001:2015
Certified quality management across every facility and process, covering design, production, inspection, and delivery.
Tight Tolerances
Metallurgical control and dimensional consistency across every run, backed by spectrometer and Brinell verification.
Consistent Delivery
Dependable lead times, every order — because your production line depends on it.
Testing & Inspection Capabilities
Every Casting Verified Before It Ships
Our inspection process is systematic and documented. From incoming material verification through final dimensional sign-off, each step is recorded and traceable.
Spectrometer Testing
Optical emission spectrometry verifies alloy chemistry on every heat — confirming iron grade, carbon equivalent, and alloying elements before the mold is poured.
Dimensional Inspection
First-article and in-process dimensional checks against customer prints. Critical dimensions are recorded and retained as part of the job traveler.
Brinell Hardness Testing
Brinell hardness testing confirms mechanical properties are within specification for the grade — gray iron, ductile iron, or aluminum — on every production run.
Tensile Testing
Tensile bar testing verifies ultimate tensile strength, yield strength, and elongation for ductile iron and aluminum castings per applicable ASTM standards.
Laser Scanning
Non-contact 3D laser scanning captures full-surface geometry for complex castings, enabling rapid comparison to CAD nominal and identification of dimensional drift.
X-Ray Inspection
Radiographic inspection is available for castings where internal soundness must be verified — detecting shrinkage, porosity, and inclusions not visible at the surface.
PPAP Support
We support Production Part Approval Process documentation including dimensional results, material certifications, process flow, control plans, and sample submission.
Material Traceability
Every casting is traceable to its heat number, charge materials, and pour date. Certifications are issued with each shipment and retained on file.
Documented Final Inspection
A completed inspection record accompanies every order. Visual, dimensional, and mechanical results are signed off before release — no casting ships without it.
Industry Recognition
AFS Casting of the Year — 2022 & 2025
Awarded by the American Foundry Society for innovation, engineering excellence, and pushing the limits of what's possible in the foundry.
ISO 9001:2015 Certified
Our quality management system is certified to ISO 9001:2015 — covering design, production, inspection, and delivery across all facilities.
Supply Chain Recovery
Foundry Rescue & Reshoring
When your casting supply chain breaks, production doesn't have to stop.
Supplier failed? Tooling stranded overseas? Quality problems, missed deliveries or poor communication putting production at risk?
Anderson Foundries helps manufacturers recover interrupted casting programs and bring critical work back to the United States. Whether you have existing tooling, an old drawing, a CAD model, a finished part — or little more than a problem — we'll evaluate the fastest practical path forward.
How We Rescue Your Casting Program
Assess the Project
We review your drawings, models, samples, existing tooling, material requirements, annual volume and current supply challenges.
Recover or Rebuild the Tooling
We evaluate transferred tooling when available. If it cannot be recovered, Spartan Pattern can repair, modify or recreate patterns and core boxes.
Engineer and Simulate
Our team uses casting engineering and MAGMA simulation to identify potential problems before production begins.
Produce and Approve Samples
We manufacture sample castings, complete required testing and make necessary adjustments before moving into ongoing production.
Transition to American Production
Once approved, your program moves into dependable domestic production for grey iron, ductile iron or aluminum castings.
A Domestic Partner from Concept to Casting
Our engineering-driven, low-volume model is especially well suited for prototypes and casting programs up to approximately 2,000 EAU. You receive one accountable American partner for engineering, tooling, sampling and production — without coordinating multiple disconnected suppliers.
Have a print, pattern, or casting challenge? Send it to our team. We'll help determine the right material, process, and path to production.
Request a Quote