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PrimeCast Global
Precision CNC Machining
PrimeCast Global
CNC Machining

Precision CNC Machining
Tolerances to ±0.005mm

Our CNC Machining Services

From 3-axis milling to 5-axis simultaneous machining, grinding, EDM, and gear cutting.

CNC MillingCNC Milling hover
5-Axis

CNC Milling

Tolerance: ±0.005mmRa 0.8μm

From simple 3-axis prismatic parts to complex 5-axis simultaneous contours. Tolerances to ±0.005mm.

Compatible Materials
AluminumStainless SteelTitaniumInconelCopperPlastics
CNC Turning & Turn-MillCNC Turning & Turn-Mill hover
Live Tooling

CNC Turning & Turn-Mill

Tolerance: ±0.005mmRa 0.8μm

Precision turning for rotational components. Turn-mill centers for complex geometries in one setup.

Compatible Materials
Carbon SteelStainless SteelAluminumBrassTitaniumCopper
Precision GrindingPrecision Grinding hover
Ra 0.4μm

Precision Grinding

Tolerance: ±0.002mmRa 0.4μm

Surface, cylindrical, and centerless grinding for tight tolerances and fine surface finish. Ra 0.4μm achievable.

Compatible Materials
Hardened SteelTool SteelStainless SteelCeramicsCarbide
No Stress
PrimeCast Global

EDM (Electrical Discharge Machining)

Tolerance: ±0.003mmRa 0.8μm

Wire EDM and sinker EDM for hardened materials and complex cavities. Tolerances to ±0.003mm.

Compatible Materials
Hardened Tool SteelCarbideTitaniumInconelCopper Alloys
M0.5–M20
PrimeCast Global

Gear Cutting & Hobbing

Tolerance: ISO Grade 5–7Ra 0.8μm

Precision gear manufacturing: spur, helical, bevel, and worm gears. ISO Grade 6 achievable.

Compatible Materials
Alloy SteelStainless SteelAluminumBrassCast Iron
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Heat Treatment

Annealing, quenching, tempering, and case hardening. Integrated with machining schedule.

Post-Process
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Surface Treatment

Anodizing, hard chrome, electroless nickel, black oxide, and more. Per customer specification.

Post-Process
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Assembly & Kitting

Sub-assembly and kitting services. Reduce your incoming inspection workload.

Post-Process

Technical Specifications

ProcessToleranceSurface FinishMax Part SizeLead Time
CNC Milling (3-axis)±0.01mm0.8–3.2μm2000×1000×800mm5–10 days
CNC Milling (5-axis)±0.005mm0.8–1.6μm1200×800×600mm7–14 days
CNC Turning±0.005mm0.8–1.6μmØ800mm × L3000mm5–10 days
Surface Grinding±0.002mm0.4–0.8μm1000×500mm3–7 days
Cylindrical Grinding±0.002mm0.4–0.8μmØ300mm × L1500mm3–7 days
Wire EDM±0.003mm0.8–1.6μm600×400×300mm5–10 days
Sinker EDM±0.005mm0.8–3.2μm800×600×400mm7–14 days
Gear Cutting (Hobbing)ISO Grade 60.8–1.6μmM0.5–M20, Ø1000mm10–20 days

Compatible Materials

We machine all common engineering alloys and specialty materials.

Steel & Iron
Carbon Steel (1018, 1045)
Alloy Steel (4140, 4340)
Tool Steel (D2, H13, M2)
Stainless Steel (303, 304, 316, 17-4PH)
Cast Iron (Gray, Ductile)
Aluminum & Light Alloys
Aluminum (6061, 7075, 2024)
Aluminum Casting Alloys (A380, A356)
Magnesium Alloys
Titanium (Grade 2, Grade 5 Ti-6Al-4V)
High-Performance Alloys
Inconel 625 / 718
Hastelloy C-276
Cobalt-Chrome Alloys
Duplex Stainless (2205)
Monel 400
Non-Ferrous & Others
Copper (C110, C101)
Brass (C360)
Bronze (C932)
PEEK / Nylon / Delrin
Tungsten Carbide

How CNC Machining Works at PrimeCast

Integrated with our casting process for seamless quality control.

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STEP 01
Drawing Review
Expert engineer reviews machining requirements alongside casting design.
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STEP 02
Process Planning
Optimal machining sequence and fixturing designed for your part.
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STEP 03
Casting Blank
Near-net-shape casting blank produced with machining allowances built in.
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STEP 04
CNC Machining
Critical dimensions machined to final tolerance. CMM in-process.
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STEP 05
Final Inspection
Full dimensional report, surface finish verification, and third-party cert.

Casting+CNC Case Studies

Real projects where integrated casting and machining delivered superior results.

✈️
Automotive
PrimeCast Global
Investment Casting + 5-Axis Milling
Challenge: Turbocharger housing required ±0.02mm bore tolerance after casting.
Solution: Investment casting blank + 5-axis CNC finish machining.
✅ Result: Achieved ±0.015mm bore tolerance, 100% pass rate on CMM inspection.
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Industrial Machinery
PrimeCast Global
Sand Casting + CNC Turning
Challenge: Large pump housing needed precise sealing faces and bearing bores.
Solution: Sand cast blank with CNC turning of all critical mating surfaces.
✅ Result: Scrap rate reduced from 8% to under 1.5%, lead time cut by 12 days.
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Aerospace
PrimeCast Global
Investment Casting + Grinding
Challenge: Titanium structural bracket required Ra 0.8μm surface on fatigue-critical areas.
Solution: Near-net-shape investment casting + precision surface grinding.
✅ Result: Passed AS9100 fatigue testing, 30% material saving vs. billet machining.

Ready to Machine Your Casting?

Upload your drawing for a combined casting+CNC review and quotation.

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