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For Water SystemsCustom Milling Machining Impeller 1

For Water SystemsCustom Milling Machining Impeller 2

For Water SystemsCustom Milling Machining Impeller 3

For Water SystemsCustom Milling Machining Impeller

KGL precision-machines impellers （For Water SystemsCustom Milling Machining Impeller ）for engines and Auxiliary Power Units (APUs) using high-temperature aluminum alloys (GB/T 3190, AA/ASTM, 7A04 / 7050 / 7150). Utilizing DMU and Hermle machining centers for 5-axis simultaneous machining, we maintain blade profile tolerances within ±0.005 mm; furthermore, our products undergo comprehensive inspection via Coordinate Measuring Machines (CMM) and are accompanied by AS9100D-certified documentation.

Origin:

China

Trademark:

OEM

Country:

China

Customization:

Available

Production Capacity:

100000PCS

Specification:

Customized

HS Code:

8479909090

Trade Term:

EXW, FOB shenzhen

Transport Package:

Inside Separate Bubble Pack Outside Woodencase

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Product Specifications

Material	Aluminium Alloy GB/T 3190、AA/ASTM、7A04 / 7050 / 7150	Blade Count	7–31 blades (open / semi-closed / closed)
Process	5-Axis CNC Simultaneous Machining + EDM	Working Temp	Up to 1,000°C continuous service
Tolerance	±0.005mm (blade profile), ±0.003mm (bore)	Certification	AS9100D / ISO 9001:2015 / BV
Surface Finish	Ra ≤ 0.8μm (flow path), Ra ≤ 0.4μm (seal faces)	Inspection	HEXAGON CMM + KEYENCE 3D Microscope + Full FAI
Max Diameter	Up to Ø650mm	Lead Time	Prototype: 15–25 days \| Production: TBD by volume and Qty

The advantages of the product

For Water SystemsCustom Milling Machining Impeller 4

High-Temperature Alloy Expertise

In-house metallurgists and proven toolpath strategies for aluminium alloy (GB/T 3190、AA/ASTM、7A04 / 7050 / 7150). We control work-hardening, tool life, and thermal distortion.

For Water SystemsCustom Milling Machining Impeller 5

5-Axis Simultaneous Machining

Dedicated 5-axis DMU & Hermle centers hold blade-profile tolerance to ±0.005mm across complex freeform surfaces in a single setup — no re-fixturing errors.

For Water SystemsCustom Milling Machining Impeller 6

AS9100D + BV Certified

Full aerospace QMS with Bureau Veritas audit trail. Every impeller ships with dimensional report, material certs (MTRs), and process traveler.

For Water SystemsCustom Milling Machining Impeller 7

HEXAGON CMM Full Inspection

Every impeller is CMM-measured against 3D CAD with color deviation map. FAIR (First Article Inspection Report) available for AS9100D customers.

Prototype in 15–25 Days

Dedicated prototype lanes and DFM feedback within 48 hours of drawing receipt. We catch tolerance stack issues before you finalize design.

End-to-End Supply

Raw material sourcing → machining → heat treatment coordination → finishing → CMM → export packaging. A accountable supplier.

Application Scenarios

Aero Engines: Including core components such as fan blades, high-pressure compressor impellers, and turbine discs. Auxiliary Power Units (APU)

Automotive Industry: Turbochargers, high-performance engine components. Industrial Manufacturing & General Machinery, Precision Fans & Ventilation Systems, Specialized Equipment & Molds.

Ground Test Stands: Turbomachinery components for engine test stands featuring flight-equivalent specifications.

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FAQ

Q: Which high-temperature alloys can be used for machining engine impellers?

A: We typically machine Inconel 718, Inconel 625, GH4169 (the Chinese equivalent alloy), René 41, and Waspaloy. These nickel-based superalloys exhibit work-hardening and thermal sensitivity characteristics—our 5-axis toolpath strategies and coolant management protocols ensure dimensional stability and surface integrity.

Q: What blade profile tolerances can you maintain?

A: Our standard tolerances are ±0.005 mm for blade profiles and ±0.003 mm for bore/journal features. For flight-critical applications requiring stricter specifications, please contact us and provide your drawings—we have successfully achieved profile accuracies of ±0.003 mm on specific geometries.

Q: Do you provide material traceability and certification documentation?

A: Yes. We provide Material Test Reports (MTRs) for all raw materials, perform full-dimensional inspections using HEXAGON Coordinate Measuring Machines (CMMs), and provide Process Sheets for every batch. AS9100D First Article Inspection Reports (FAIRs) are available upon request.

Q: What is the typical lead time for prototype impellers?

A: Typically, it takes 15–25 business days from the date of drawing approval, depending on the complexity of the geometry. We provide Design for Manufacturability (DFM) feedback within 48 hours of receiving your drawings, identifying any potential tolerance or manufacturability issues before you commit to tooling production.

Q: Can you machine enclosed or semi-enclosed impellers with narrow flow channels?

A: Yes. We machine open, semi-enclosed, and fully enclosed impellers. For narrow flow channels (channel widths less than 8 mm), we utilize specialized extended-reach tooling; we have successfully validated this approach on impellers for helicopter Auxiliary Power Units (APUs) and turboshaft engines."

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