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Premium CNC Cast Iron Service: Precision, Durability, Trust
At Istar Machining, we deliver exceptional CNC cast iron services that transform your concepts into high-performance industrial components. Our precision-machined cast iron parts combine cutting-edge technology with traditional metallurgical expertise to serve the most demanding industries.
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20+ Years
Istar Machining's years in the industry
300,000 square feet
The size of Istar Machining's factory
300 CNC machines
Our CNC equipment count
1000 skilled workers
Istar's number of skilled machinists/operators
What Makes Our CNC Cast Iron Service Stand Out?
Our team works with tight-tolerance specifications and industry-leading equipment to deliver parts that perform in the most challenging environments. Whether you need automotive components, industrial machinery parts, or mining equipment, our CNC cast iron service ensures quality without compromise. and experience the Istar Machining difference!
Key Specifications and Capabilities
Material Grade Options | Process Capabilities | Quality Assurance | Surface Treatment Options |
• HT200-300 Cast Iron | • Sand Casting | • ISO 9001 Certification | • Primer Paint |
• ASTM A48 Gray Iron | • Shell Molding | • IATF 16949 (Automotive) | • Epoxy Powder Coating |
• EN-GJS Ductile Iron | • 5-axis CNC Machining | • ±0.005 mm Tolerances | • Galvanization |
• High-strength options | • CNC Grinding | • Ra 1.6–3.2 µm Surface Finish | • Anticorrosion Linings |
Materials We Work With
At Istar Machining, we specialize in various cast iron grades to match your specific needs:
- Gray Iron (ASTM A48) – Perfect for parts needing vibration damping and wear resistance
- Ductile Iron (EN-GJS) – Combines strength with flexibility for high-stress applications
- HT200-300 – Ideal for heavy-duty industrial applications with hardness ratings of HB160-240 Did you know? Our CNC iron cutting processes can achieve surface finishes as smooth as Ra 1.6 µm, making our parts ready for immediate use in precision applications!
Industries and Applications We Serve
Automotive Components
- Engine blocks
- Brake discs and drums
- Transmission housings
- Cylinder heads Our automotive CNC machining expertise ensures your cast iron components meet strict industry standards while maintaining tight tolerances.
Industrial Equipment
- Hydraulic valve bodies
- Pressure-tight manifolds
- Pump housings
- Machine tool bases
Mining Equipment
- Wear-resistant components
- Abrasion-resistant parts
- Durable housings for extreme conditions Heavy-duty applications benefit from our heavy metal CNC capabilities, delivering components that withstand the harshest conditions.
Construction Machinery
- Crane gearboxes
- Excavator links
- Foundation supports
- Structural components
The Istar Machining Process: Perfection at Every Step
1. Design & Simulation
We start by working with your CAD files, optimizing them for stress distribution and manufacturability. Our engineering team has over 10 years of experience supporting clients with:
- Free design feedback
- Material selection guidance
- Cost optimization suggestions
2. Precision Manufacturing
Our advanced CNC machines transform raw cast iron into precision components:
- 5-axis CNC milling for complex geometries
- CNC turning for cylindrical components
- Surface grinding for perfect finishes Need extremely precise surfaces? Our precision grinding services can help achieve the perfect finish.
3. Quality Assurance
Every part undergoes rigorous inspection:
- X-ray inspection for internal defects
- Metallurgical testing for material properties
- Dimensional verification to ±0.005 mm
- Surface finish validation
4. Surface Treatments & Finishing
We offer complete finishing options:
- Epoxy powder coating
- Galvanization for outdoor use
- Custom paint finishes
- Anti-corrosion treatments
Why Choose Istar Machining for Your Cast Iron Needs?
✓ Proven Quality
Our cast iron components achieve a 98% defect-free rate, exceeding industry standards. We combine traditional iron casting wisdom with state-of-the-art CNC precision.
✓ Time and Cost Efficiency
- Prototypes: 7-10 days from CAD file to finished part
- Production Runs: 3-5 weeks for orders of 5,000+ units
- Flexible MOQs: Starting at just 50 units for small runs
✓ Technical Excellence
Our engineering team provides expert support at every stage:
- Material selection guidance
- Design for manufacturability (DFM) assistance
- Cost-saving recommendations
✓ Complete Documentation
We provide all necessary documentation:
- Material certifications
- Dimensional reports
- Surface finish verification
- Heat treatment records
Get Started With Your Cast Iron Project Today
At Istar Machining, we combine decades of metallurgical expertise with cutting-edge CNC technology to deliver cast iron components that exceed expectations. Here’s how to get started:
- Send us your CAD files for review
- Receive a comprehensive quote within 24 hours
- Approve your project and let our experts handle the rest
- Receive your high-quality cast iron components on time, every time Contact us today to discuss your cast iron machining needs!
Technical Specifications: CNC Cast Iron Capabilities
Parameter | Capability | Benefits |
Material Grades | HT200-300, ASTM A48, EN-GJS | Suitable for various stress and environmental conditions |
Maximum Part Size | Up to 78.7″ x 59″ x 7.8″ | Accommodates large industrial components |
Minimum Wall Thickness | 3mm for gray iron, 2.5mm for ductile | Balances strength with weight reduction |
Surface Finish | Ra 1.6–3.2 µm | Smooth operation and reduced wear |
Lead Times | Prototypes: 7-10 days, Production: 3-5 weeks | Fast turnaround for time-sensitive projects |
Our commitment to quality and precision makes Istar Machining your ideal partner for CNC cast iron services.
Frequently Asked Question
Gray iron contains graphite flakes that provide excellent vibration damping and thermal conductivity. Ductile iron contains graphite in spherical form, giving it higher tensile strength and ductility, making it better for structural applications.
Our advanced precision CNC machining can achieve tolerances as tight as ±0.005 mm on cast iron components.
We can achieve surface finishes between Ra 1.6–3.2 µm depending on your requirements. Additional finishing operations can improve this further.
Cast iron is typically 15-20% less expensive than comparable steel components, while offering excellent wear resistance and vibration damping properties.
Yes! Our large CNC machining capabilities allow us to work with substantial cast iron components for industrial applications.
