China OEM Custom Stainless Steel 3-Blade Marine Propeller (Precision Investment Casting) Product, Exporter
Product Description
Product Overview
This high-performance 3-blade stainless steel marine propeller is engineered for optimal hydrodynamic efficiency, high thrust, and exceptional durability in demanding marine environments. Manufactured via state-of-the-art precision investment casting (silica sol process), it features an optimized turbine blade configuration that minimizes cavitation while maximizing fuel efficiency and propulsion. Designed for boats, yachts, commercial vessels, and specialized underwater propulsion systems, this propeller delivers unparalleled reliability and long-term mechanical stability under heavy load conditions.
Manufacturing Process & Quality Insights
Produced using elite Silica Sol Investment Casting (Lost Wax Casting) technology, ensuring flawless structural integrity and a refined surface finish.
Crafted exclusively from marine-grade stainless steel, providing superior resistance against pitting, corrosion, and high-velocity water abrasion in harsh saltwater conditions.
Center bore, keyways, and hub geometries undergo high-precision CNC machining to guarantee perfect shaft alignment and micro-level tolerance controls.
Industrial-grade sandblasting finish applied uniformly to eliminate microscopic surface defects and provide an ideal matte aesthetic.
Technical Specifications
| Parameter | Technical Specification |
|---|---|
| Product Name | Custom 3-Blade Stainless Steel Marine Propeller |
| Manufacturing Process | Silica Sol Investment Casting (Precision Casting) + CNC Machining |
| Material Grades | Stainless Steel 304, 316, 316L, 17-4PH, Duplex Steel (Fully Customizable) |
| Surface Finish | Sandblasting (Optional: Mirror Polishing, Passivation, Electro-polishing) |
| Dimensions & Size | Fully customized according to customer's 2D/3D technical drawings or samples |
| Manufacturing Tolerances | Casting: ISO 8062 CT4 - CT6; CNC Machining: Up to ±0.01 mm |
| Quality Certifications | CE, ISO 9001:2000, ISO 9001:2008 |
| Applicable Industries | Marine Propulsion, Commercial Shipbuilding, Water Turbines, Industrial Impellers |
| Customization Scope | 100% Full OEM/ODM Customization (Blade Pitch, Diameter, Bore Size, and Materials) |
Key Features & Advantages
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Optimized Hydrodynamics: The advanced 3-blade geometry minimizes hydro-resistance, suppresses blade-tip cavitation, and enhances acceleration and overall vessel speed.
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Exceptional Longevity: Utilizing premium grade stainless steel eliminates pitting corrosion and galvanic rust, dramatically extending the operational lifespan compared to conventional bronze or aluminum alternatives.
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100% Tailored Engineering: Shenzhen Sunmy Hardware Co.,Ltd. provides full-scope engineering and R&D support. We accept all custom inquiries to modify pitch, rotation direction (RH/LH), hub diameter, and taper to perfectly match your specific powertrain systems.
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Flawless Quality Control: Every single propeller undergoes 100% dimensional CMM inspection, material spectrometer analysis, and dynamic balancing tests to guarantee vibration-free, perfectly smooth rotation.
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