Machined Castings
Precision Machining for Cast Iron Components
- ✅ High dimensional accuracy – tolerances up to ±0.01 mm
- ✅ Ready for assembly – reduce secondary processing
- ✅ Complex geometry capability – 5-axis CNC machining
- ✅ One-stop casting + machining – streamlined supply chain
Product Overview
What Are Machined Castings?
Machined castings are rough cast iron components that undergo precision CNC machining to achieve final dimensions, tight tolerances, and superior surface finishes. At Matson Iron Casting, we offer a complete in-house solution from molten metal to ready-to-assemble parts. By integrating casting with CNC milling, turning, drilling, and tapping, we eliminate the need for multiple suppliers and reduce lead times. Our machined castings serve industries such as automotive, heavy machinery, pipeline, and energy – where reliability and precision are non-negotiable.
Key Advantages
- High precision tolerance – up to ±0.01 mm (IT6–IT7 grade)
- Reduced secondary processing – ready for immediate assembly
- Improved product performance – perfect fit and surface integrity
Key Features
High Precision Machining
Tolerances as tight as ±0.01 mm with advanced CNC equipment and CMM inspection.
Complex Geometry Capability
5-axis machining, deep hole drilling, and intricate contouring for complex designs.
Smooth Surface Finish
Ra 0.8 – 3.2 µm achievable; additional polishing or coating available.
Assembly-ready Components
Complete drilling, tapping, reaming, and countersinking – parts fit right away.
Specifications
| Parameter | Specification / Range |
|---|---|
| Machining Tolerance | Up to ±0.01 mm (ISO IT6–IT7) |
| Machining Processes | CNC Milling (3/4/5-axis), CNC Turning, Drilling, Tapping, Boring, Grinding |
| Surface Finish | Machined finish (Ra 0.8–3.2 µm), optional painting, powder coating, zinc plating, or anodizing |
| Materials Machined | Gray iron, ductile iron, alloy cast iron, and other ferrous metals |
| Max Part Size | Up to 2000 mm × 1000 mm × 800 mm (larger upon request) |
| Batch Flexibility | Prototypes (1–10 pcs), small to medium (100–5000 pcs), high-volume (5000+) |
After precision machining, explore our surface treatment options to achieve the desired finish and corrosion resistance.
Applications
Precision Components
Gears, hydraulic valve blocks, pump shafts, and bearing housings requiring tight tolerances and high repeatability.
Flanges & Connectors
Drilled and faced flanges, quick-connect couplings, and threaded adapters for pipeline systems.
Mechanical Assemblies
Complete sub-assemblies like gearboxes, engine brackets, and transmission housings – machined and ready for final assembly.
Manufacturing Capability
CNC Machining Centers
15+ modern CNC machining centers including 3-axis, 4-axis, and 5-axis mills, plus CNC lathes.
Multi-axis Capability
Simultaneous 5-axis machining for complex contours, undercuts, and angled features.
Batch Production Capacity
From 1 piece prototype to 50,000+ pieces monthly – flexible production planning.
Custom Machined Parts
OEM & Custom Machining Service
We provide complete turnkey solutions – from casting design to finished machined parts. Our engineers collaborate with you to optimize the component for both castability and machinability, reducing waste and cost. We manage the entire process: pattern making, casting, heat treatment, CNC machining, surface finishing, and inspection.
Supported File Formats
STEP, IGES, SolidWorks, AutoCAD (DWG/DXF), PDF, STL – upload your 2D or 3D models for a fast quote and design for manufacturing (DFM) analysis.
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