| Parameter / Process | Specification & Technical Highlights | Customer Benefits / Value |
| Material | Grade 17-4PH Stainless Steel (Precipitation-Hardening) | Delivers outstanding yield strength, extreme surface hardness, and superior defense against severe seawater cavitation and mechanical fatigue. |
| Application Scenario | Shipbuilding / Commercial Vessels / Luxury Yachts & Marine Propulsion Systems | Engineered to maintain structural geometry and thrust efficiency under heavy hydrodynamic loads and harsh saltwater environments. |
| Unit Weight | 5.30 kg (Mid-to-Large Scale Propeller) | Offers a heavier, robust structure optimized for higher torque and horsepower maritime drivetrains. |
| Tooling & Assembly | Specialized Part-By-Part Wax Pattern Assembly | Overcomes complex 3D helical blade geometry constraints; bespoke shaping tooling ensures precise and uniform blade pitch across all sections. |
| Pouring System | Advanced Multi-Gate Gating System | Scientifically balanced multi-point molten metal distribution guarantees uniform material density, completely preventing internal porosity in thick hub-to-blade transitions. |
| Surface Finish | Flawless Fully Mirror Polished | Drastically reduces hydro-friction drag, boosts propulsion efficiency, and significantly limits marine bio-fouling or growth adhesion. |
| Dynamic Stability | Precision Dynamic Balancing Performed | Eliminates high-RPM rotational micro-vibrations, shielding the vessel's drivetrain bearings and minimizing underwater acoustic noise. |
| Casting Tolerance | ISO 8062 (GB/T6414) CT6 Grade | High near-net-shape accuracy simplifies inner hub boring, keyway broaching, or splined shaft mating. |
Because propeller components are critical to a vessel's operational safety and propulsion efficiency, our quality team implements strict end-to-end testing:
Leading manufacturer specializing in precision investment casting and CNC machining of high-performance steel components for critical industrial applications.
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