| 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:
This 4‑bladed propeller is presented as a representative custom‑manufactured component for Shipbuilding; Commercial vessels; Luxury yachts; Marine propulsion systems Honyang Cast develops similar parts from customer drawings rather than offering a fixed catalog specification.
The manufacturing plan must connect the part's functional geometry—Four‑blade propeller; Complex 3D helical blade geometry; Uniform blade pitch; Thick hub‑to‑blade transitions—with tooling, investment casting, machining and measurable inspection requirements. Final dimensions, interfaces and acceptance criteria are confirmed during drawing review.
PROJECT‑SPECIFIC SUPPLY
Material grade, dimensions, tolerance zones, machining allowance, surface condition, operating requirements and inspection records are confirmed after review of the customer’s 2D drawing, 3D model and project specification.
The parameter set is selected for this component’s function. Unknown values remain drawing‑controlled and must not be replaced with generic catalog data.
| Engineering Item | Reference / Custom Requirement | Verification Basis |
|---|---|---|
| Material grade | Grade 17‑4PH Stainless Steel (Precipitation‑Hardening) | Confirm governing standard and chemistry requirements. |
| Part weight | 5.30 kg (Mid‑to‑Large Scale Propeller) | Confirm target weight and allowable variation when relevant. |
| Functional geometry | Four‑blade propeller; Complex 3D helical blade geometry; Uniform blade pitch; Thick hub‑to‑blade transitions | Identify drawing datums and critical‑to‑function features. |
| Casting / process reference | Specialized part‑by‑part wax pattern assembly; Advanced multi‑gate gating system; Fully mirror polished; Precision dynamic balancing; ISO 8062 (GB/T6414) CT6 casting tolerance | Confirm which steps apply to the quoted production route. |
| Dimensions and tolerances | To be confirmed from customer drawing. | Define casting tolerance separately from machined dimensions and GD&T. |
| Operating conditions | To be specified by customer. | Provide medium, load, temperature, pressure, speed or hygiene requirements as applicable. |
| Recommended additional fields | Overall diameter; Blade pitch; Rake; Hub bore; Keyway or spline; Rotation direction; Balancing requirement | Complete before publishing numeric claims or quoting production. |
| Structural Feature | Why It Matters | Manufacturing Response |
|---|---|---|
| Four‑blade propeller | This feature influences fit, flow, load transfer, manufacturability or downstream assembly. | Control profile geometry, section transitions, hub or mounting interfaces, and balance‑related features according to the approved drawing. |
| Complex 3D helical blade geometry | This feature influences fit, flow, load transfer, manufacturability or downstream assembly. | Control profile geometry, section transitions, hub or mounting interfaces, and balance‑related features according to the approved drawing. |
| Uniform blade pitch | This feature influences fit, flow, load transfer, manufacturability or downstream assembly. | Control profile geometry, section transitions, hub or mounting interfaces, and balance‑related features according to the approved drawing. |
| Thick hub‑to‑blade transitions | This feature influences fit, flow, load transfer, manufacturability or downstream assembly. | Control profile geometry, section transitions, hub or mounting interfaces, and balance‑related features according to the approved drawing. |
A project‑specific route is established after review of geometry, alloy, tolerance, volume and validation requirements.
Source Page Process References
PROCESS SCOPE
Investment casting and CNC machining are described as the core route. Heat treatment, coating, polishing, balancing, pressure testing, radiographic testing, PPAP or other special processes must be shown as project‑specific unless their scope is confirmed.
Honyang Cast supports drawing‑based development of 4‑bladed propeller and related investment cast components from manufacturability review through sample approval and repeat production.
| Application Requirement | Manufacturing Value |
|---|---|
| Drawing‑defined fit and function | A part‑specific DFM and inspection plan links casting geometry to the actual assembly and operating requirement. |
| Integrated complex geometry | Investment casting can consolidate features and reduce fabrication or excessive stock removal where the approved design supports it. |
| Repeatable critical interfaces | Controlled datums, machining and inspection support consistent assembly of functional surfaces and mating features. |
| Material and process traceability | Agreed material and inspection records provide evidence against the drawing and quality plan. |
| Product‑specific value | Support stable thrust transfer; Reduce vibration risk; Provide a corrosion‑resistant propulsion component |
Design Inputs Required From the Customer
SEND YOUR DRAWING FOR A MANUFACTURABILITY REVIEW
Upload the drawing and 3D model for your 4‑bladed propeller together with material, quantity, operating conditions and inspection requirements. Our team will review the casting route, machining scope and quality plan before quotation.
Leading manufacturer specializing in precision investment casting and CNC machining of high-performance steel components for critical industrial applications.
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