Precision Machining for Precision Castings

At One-Off Castings, we specialize in more than just metal pouring—we finish what we start. Our in-house CNC machining department allows us to take your project from casting to fully machined final part with unmatched accuracy and attention to detail. Whether it’s a single prototype, replacement component, or short-run production, we ensure every part is dimensionally precise, reliable, and ready for its real-world application.

Why CNC Machining Matters

CNC machining is critical in turning a quality casting into a functioning component. Even the best castings require final precision touches that only machining can provide. Our machining team works directly from your CAD model or reverse-engineered scan to ensure a seamless fit, tight tolerances, and optimal performance.

• Tight tolerance machining for critical dimensions

• Surface finishing for sealing and mating components

• Complex geometry features that cannot be cast

• Threading, boring, and cleanup post heat-treatment

• Full integration with our casting process to reduce lead time and cost

Machining Capabilities

• 3-axis and 4-axis milling

• Horizontal and vertical turning

• Boring, facing, threading, and grooving

• Complex toolpaths from CAD or reverse-engineering

• Post-processing cleanup for heat-treated components

Equipment

CMM Inspection

• Brown & Sharp UHA 9-15-9 Coordinate Measuring Machine

Mazak Machines

• (7) Mazak H6800 Horizontal Mills

  • Travel: X 41.34″, Y 35.43″, Z 38.58″

Mazak Lathes

• (2) Mazak Integrex 300

  • Travel: X 24.24″, Y 10.24″, Z 27.36″, W 24.88″

• (1) Mazak QTN-200

  • Travel: X 7.6″, W 21.75″, Z 21.13″

Haas Machines

• (3) Haas EC-1600ZT

  • Travel: X 64″, Y 50″, Z 40″

• (1) Haas VF-6

  • Travel: X 64″, Y 32″, Z 30″

Built for One-Offs

Unlike volume production shops, our CNC department is optimized for flexibility, speed, and high-mix, low-volume work. Whether we are finishing a single custom part or delivering a short run of highly engineered pieces, our equipment and team are purpose-built to meet the demands of precision-driven, one-time projects.