Cast iron sand casting on a workbench in a manufacturing environment

Low to Medium Volume Cast Iron Castings

Prototype to Production

We deliver low- to medium-volume cast iron castings with in-house pattern tooling, machining, and engineering support.
One accountable partner from print to finished part.

Trusted by Engineers and OEMs Since 1960
Gray Iron Grades Class 25 • Class 30 • Class 35 • Class 40
Weight Range Up to 3,000 lb
Tooling In-house pattern tooling
Production Prototype to low- and medium-volume

Casting Capabilities

Cast iron casting support from tooling through final inspection, with in-house pattern tooling, machining, and engineering support. One accountable partner from print to finished part.

Cast Iron Grades Gray Iron Class 25, Class 30, Class 35, and Class 40 Grade selected based on strength, machinability, damping characteristics, and application requirements
Part Size & Production Range 0.1 lb to 3,000 lb typical casting weight Prototype through ~5,000 pieces annually Scalable based on part requirements
Pattern Tooling In-house pattern design and build Wood, urethane, and aluminum tooling Built for prototype through production requirements
Casting Processes Green sand and no-bake (airset) molding 3D printed molds for rapid prototyping and complex geometry Process selected based on geometry, volume, and lead time
Core & Part Complexity Complex core geometry and internal passages Multi-core assemblies
Heat Treatment Specified based on grade and performance requirements
Machining Machined to finished part specifications Critical features held to print tolerances Close-tolerance features completed to print
Finishing & Surface Treatments Painting, coating, oiling, and other treatments Based on application and environment
Inspection, Testing & Documentation Dimensional inspection with reporting (including first article layouts) Magnetic particle, liquid penetrant, or other testing available as required FAIR, PPAP, and material certifications available Produced in accordance with ISO 9001 quality standards
Engineering & Program Support Print review and manufacturability feedback Gating and riser design support Alternate methods and tooling strategies evaluated when appropriate
Representative Work

Cast Iron Casting Examples

Cast iron pipe casting
Cast iron pipe
Cast iron bracket casting
Cast iron bracket
Cast iron valve body casting
Cast iron valve body
Cast iron heat sink casting
Cast iron heat sink

Why Work With CPM

CPM supports cast iron casting programs with in-house pattern expertise, controlled execution, and one accountable team from print review through final delivery.

In-House Pattern Expertise

Pattern tooling is designed and built in-house, allowing faster turnaround, better process control, and more efficient casting development.

One Accountable Partner

One team is responsible from print review through final delivery, keeping communication, timing, and execution aligned throughout the program.

Process-Driven Execution

Defined workflows from tooling through machining and inspection reduce variability and support consistent, repeatable results.

Flexible Volumes

Built for prototype through low- to medium-volume production without the constraints of high-volume foundry models.

Consistent Delivery

Clear checkpoints and controlled execution help ensure parts are delivered as expected and to specification.

60+ Years in Business  •  ISO 9001:2015 Compliant  •  U.S.-Based Program Support  •  One Accountable Partner from Print to Finished Part

Request a Quote

Send us your drawings or RFQ package and we’ll review your project and provide a quote.

Every RFQ is reviewed for manufacturability before quoting, with typical turnaround in 24–48 hours.
sales@cpm-industries.com
Phone: 630.469.8200 Hours: Monday - Friday · 8:00 AM - 5:00 PM CT
Include drawings, models, quantity, alloy or grade, and any machining, heat treat, inspection, or documentation requirements.

What to Include

  • PDF drawings and CAD models
  • Alloy or grade and quantity
  • Inspection, heat treat, machining, and documentation requirements if applicable

Looking for a Different Material?

Not sure cast iron is the right fit? We also support ductile iron, aluminum, steel, stainless steel, and other casting materials depending on your application.

See all casting materials →