Expert Supplier of Surface Propeller— Ni-Al Bronze (Cu3) High-Speed Planing Boat

• Customization: Available
• After-sales Service: 12 Months
• Warranty: 12 Months
• Model NO.: propeller
• Material: Ni-Al Bronze (Cu3)
• Blades: Depends on Customization
• Certification: ISO9001:2000, ISO9001\ISO45001
• Diameter: Customisation
• Weight: Customisation
• Classification Society: Dnv\ABS\RS\Rina\BV\Kr\Bki\CCS
• Transport Package: Standard Export Packing
• Specification: Depends on customization
• Trademark: ZhenJiangJinYe Propeller
• Origin: Jiangsu China
• HS Code: 8487100000
• Production Capacity: 10000

Product Description

Model NO.	Propeller
Transport Package	Standard export packing
Specification	Depends on customization
Trademark	ZhenJiangJinYe Propeller
Origin	Jiangsu,China,
HS Code	84871000
Production Capacity	1000units\month\
Other	Can be customized
Classification Society	DNV\ABS\RS\RINA\BV\KR\BKI\CCS
Certification system	ISO9001\ISO14001\ISO45001
Port of departure	Shanghai
Material	Ni-AI Bronze (Cu3)
Blades	Depends on Customization
Delivery time	Customization time two or three months

Introduction

The Surface Piercing Propeller (SPP), also known as the Surface Propeller, is a specialized propeller designed for high-speed marine craft. Its unique feature lies in the partial exposure of the propeller blades above the waterline during high-speed navigation, while the remaining blades remain submerged, ensuring efficient propulsion. This design not only enhances the vessel's propulsion efficiency but also significantly reduces drag, making it the preferred propulsion method for modern high-speed marine vessels.

Advantages

1. Low Drag and High Efficiency: The SPP's hub, shaft, and hydraulic support components are partially exposed above the water, significantly reducing the additional drag caused by these parts, thereby improving propulsion efficiency.
2. Prevention of Cavitation Erosion: Conventional propellers are prone to cavitation at high speeds, leading to erosion on the blade surface. The SPP, with partially ventilated blades, effectively prevents this issue, extending the propeller's lifespan.
3. Optimized Operating Point: The SPP is mounted behind the stern seal plate, freeing it from the constraints imposed by the hull on propeller diameter, allowing for a more optimized choice of operating points and enhanced overall performance.
4. Convenient Installation and Maintenance: The SPP propulsion system offers flexible installation options and simplified maintenance procedures, reducing operational costs.
5. Excellent Handling Performance: By adjusting the immersion depth of the propeller, vector thrust can be achieved, enhancing the vessel's stability, speed, and maneuverability during actual operation.

Factory Direct Sales

In China,have begun producing and selling SPPs directly. These companies possess advanced production technology and equipment, capable of providing customized solutions to meet the diverse needs of marine craft.

Quality and Materials

The material choice for SPPs is crucial. Ni-Al Bronze (Cu3) is a commonly used premium material renowned for its excellent seawater corrosion resistance, good fatigue resistance, and high strength, making it ideally suited for marine propeller manufacture. Stringent quality control procedures and advanced heat treatment technologies ensure the stability and durability of SPP products.

Environmental Protection

The SPP design not only enhances vessel navigation efficiency but also offers environmental benefits. Its low drag and high efficiency characteristics reduce fuel consumption and exhaust emissions, helping to mitigate the vessel's environmental impact. Furthermore, SPPs manufactured from high-quality materials are unlikely to release harmful substances during long-term use, aligning with environmental protection requirements.

Regular Maintenance

Regular maintenance and care are essential to ensure the long-term stable operation of SPPs. This includes:

1. Cleaning and Maintenance: Regularly use soft brushes or cloths to remove dirt, algae, and other biological attachments from the propeller surface to prevent them from affecting navigation performance.
2. Rust Prevention: The metal surface of the propeller is prone to oxidation and rust when exposed to seawater for extended periods. Mild rust can be treated with special polishing agents, while severe rust may require disassembling the propeller for repair or replacement.
3. Bearing Lubrication: Regularly lubricate the propeller bearings to reduce friction and extend their lifespan. Choose the appropriate lubricant based on the bearing requirements and ensure proper application.

Applications

SPPs are widely used in various high-speed marine craft, including high-speed planing hulls, high-speed maritime patrol boats, Their unique advantages enable these vessels to perform their tasks more efficiently, flexibly, and stably. As technology continues to advance and the market expands, the application prospects of SPPs in marine propulsion systems will be even broader.