Zhejiang Yuan Ding Marine Equipment Co., Ltd., with over two decades of dedicated history, has been singularly focused on one thing: crafting high-quality marine propellers. Since our inception, we have been committed to delivering exceptional Fixed Pitch Propellers (FPP) and Controllable Pitch Propellers (CPP) to meet the diverse needs of our global clientele.
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Why Choose Us
Our Factory
With a team of 130 dedicated professionals, our 16,000 square meter workshop annually produces 2,000 tons of copper alloy propellers, committed to providing efficient and reliable marine propulsion solutions.
Custom Service
With our advanced casting process, Yuan Ding Marine delivers fully customized propellers, whether you need one unique design or consistent quality across a large batch.
24/7 Customer Support
Our round-the-clock customer support ensures quick responses to inquiries, from initial consultations to after-sales services. We're here whenever you need us.
The propeller is a most important “appendage” on a ship. As the decisive connection between the power of the main engine and the water, it has to push a ship across the seas as quickly as possible.
Types of Cargo Ship Propeller
3 Blade Propeller
●Characteristics: These are propellers that present a middle of the way between performance efficiency, and cost. The three-blade design gives moderate thrust and smooth operation.
●Applications: The most versatile and reliable propeller, widely used in commercial ships, cargo vessels, and fishing boats.
4 Blade Propeller
●Features: Provide much more thrust and stability, making them ideal for vessels requiring additional power.
●Applications: Most commonly found in very large ships such as tankers and passenger vessels, where stability and reduced vibration are especially important.
5 Blade Propeller
●Characteristics: Heavy-duty applications where power and smoothness are a must-have.
●Applications: Applied in naval ships, luxury yachts, and large passenger ships.
Product Specification
We offer the following Product specifications：
|
Model NO. |
3 M Propeller For Cargo Ship |
|
Function |
Adjustable blades for Container Ship Propeller |
|
Classification Society |
DNV/ABS/CCS/RS/RINA/LR/BV/KR etc. |
|
Certification system |
ISO9001\ISO14001\ISO45001 |
|
Diameter |
Normally in 3M, Maximum in 8M |
|
Number of blades |
Customized, normally for 4 blades |
|
Material |
Ni-AI Bronze (Cu3) |
|
Model NO. |
5 M Propeller For Cargo Ship |
|
Function |
Adjustable blades for Cargo Ship |
|
Classification Society |
DNV/ABS/CCS/RS/RINA/LR/BV/KR etc. |
|
Certification system |
ISO9001\ISO14001\ISO45001 |
|
Diameter |
Normally 5M, Maximum in 8M |
|
Number of blades |
Customized, normally for 4 blades |
|
Material |
Ni-AI Bronze (Cu3) |
|
Model NO. |
4 M Propeller For Cargo Ship |
|
Function |
Adjustable blades for Container Ship Propeller |
|
Classification Society |
DNV/ABS/CCS/RS/RINA/LR/BV/KR etc. |
|
Certification system |
ISO9001\ISO14001\ISO45001 |
|
Diameter |
Normally in 4M, Maximum in 8M |
|
Number of blades |
Customized, normally for 4 blades |
|
Material |
Ni-AI Bronze (Cu3) |
●Marine propellers are made from corrosion-resistant materials as they are made operational directly in seawater which is a corrosion accelerator. The materials used for making marine propellers are an alloy of aluminium and stainless steel.
●Other popular materials used are alloys of nickel, aluminium and bronze which are 10~15 % lighter than other materials and have higher strength.
●The construction process of the propeller includes attaching a number of blades to the hub or boss by welding or forging in one piece. Forged blades are highly reliable and have greater strength but are expensive as compared to welded ones.
●A marine propeller is constructed by sections of helicoidal surfaces acting together to rotate through the water with a screw effect.
The Propeller Process Flow
Moulding ( wooden pattern for hub, and sand mould for blades),make the upper mould and lower mould for the blades according to the table of offset of the propeller drawing, measure the pitch by the pitch meter in many positions on the blades upper and lower mould, connect the hub mould and blades mould together.
Melting the bronze, analyze the chemical composition of the bronze material by spectrum analyzer, make sure the chemical composition is qualified, make the sample bronze rod and test its physical properties,to make sure the physical propeties is qualified.
Propeller casting, check the defects of the moulds,and heat the moulds before casting. inspect the casting blank quality, measure the dimension of the casting blank,check the casting blank defects, and make the flaw detection.
Machining the shaft hole,double ends of the hub, key way of the hub as per the drawing.
Polishing the blades surface, and hub surface, according the drawing requirements.
Finished product inspection, including dimension inspection, balance testing, pitch measuring.
Install of Cargo Ship Propeller
There are two ways to install the propeller on the shaft, one is keyless installation, the other is keyless installation.
With the continuous development of shipbuilding technology, the keyless installation of propeller and shaft can avoid the stress concentration of shaft caused by machining keyway on propeller shaft, so more and more ships use keyless installation of propeller and gradually replace keyless installation.
The propeller is set on the stern shaft, and the hydraulic nut is installed. The high-pressure oil pumped by the oil pump enters the stern shaft and the conical surface of the propeller through the oil groove of the inner hole of the propeller hub through the high-pressure oil pipe, so that the propeller hub produces elastic deformation and is expanded. At the same time, high pressure oil is supplied to the hydraulic nut, which generates forward thrust and makes the propeller move forward. When the propeller is pushed to the specified position, the high pressure oil of the cone hole of the propeller hub is put first, and then the high pressure oil of the hydraulic nut is released. Due to the recovery of the elastic deformation of the propeller hub, the propeller is closely matched on the stern shaft.
FAQ
We're professional cargo ship propeller manufacturers and suppliers in China. If you're going to buy high quality cargo ship propeller, welcome to get quotation from our factory. Also, custom service is available.
Cylinder Propeller Cargo Ship, controllable pitch propeller, Container Ship Propeller