5-Axis CNC Machined Turbine Impeller
Custom turbine and compressor impellers machined on 5-axis CNC centers. Complex twisted blade geometry from your CAD or hand drawing. Steel, titanium, and aluminum.
Quote in 24h · MOQ: 1 piece · Worldwide shipping
About CNC Machined Impellers
Turbine and compressor impellers are among the most technically demanding CNC parts to produce. Their twisted, compound-curved blade profiles cannot be machined on 3-axis equipment — they require 5-axis simultaneous machining where the cutting tool moves in all five axes simultaneously to follow the blade surface.
EKINSUN operates 5-axis machining centers capable of producing impeller blade profiles from a wide range of metals including steel, titanium, aluminum, and nickel alloys (Inconel). We machine custom impellers for turbocharger development, jet propulsion research, pump applications, and industrial turbomachinery.
What We Machine
- Turbocharger compressor wheels — aluminum, for automotive and industrial turbo development
- Turbine wheels — steel or Inconel, for exhaust-side turbine applications
- Centrifugal pump impellers — stainless steel for water, chemical, and slurry pumps
- Research impellers — for academic and industrial fluid dynamics research
- Custom fan and blower wheels — aluminum for HVAC and industrial airflow applications
Ordering from a Drawing or Existing Part
Impeller geometry is typically defined by a CAD model. However, we also accept hand-drawn blade cross-sections with wrap angles and hub profiles defined, and we can reverse-engineer existing impellers from physical measurement. Contact us to discuss your specific requirements.
Technical Specifications
| Parameter | Value |
|---|---|
| Process | 5-Axis Simultaneous CNC Milling |
| Materials | Steel, Titanium Grade 5, Al 6061/7075, Inconel 625/718 |
| Tolerance | ±0.01mm on blade profiles |
| Surface Finish | Ra 0.8μm standard |
| Max Diameter | Ø 300mm |
| Max Blade Count | Any — specified by customer |
| MOQ | 1 piece |
| Lead Time | 15–25 business days |
| Drawing Formats | STEP, IGES, SolidWorks, Hand Sketch |
| Inspection | CMM + 3D scan available |
Frequently Asked Questions
Impeller blades have twisted, compound-curved surfaces that are undercut relative to the hub — meaning the cutting tool must tilt and rotate simultaneously to reach all surfaces. 3-axis machining cannot access these surfaces without leaving material. 5-axis simultaneous machining allows the tool to follow the blade profile from hub to tip in a single continuous motion.
We machine impellers in aluminum 6061 and 7075 (compressor wheels), carbon and alloy steels (turbine wheels), titanium Grade 5 (weight-critical aerospace), stainless steel 316L (pump impellers), and Inconel 625/718 (high-temperature turbine applications).
Yes. MOQ is 1 piece. Prototype impellers are a core part of our work — development engineers typically need 1-3 prototypes to validate a design before committing to production tooling.
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