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.
Advantages of Trawler Propeller
Low Maintenance
Due to the harsh operating environment of tugs, propellers need to withstand high loads and corrosion, so we consider reducing maintenance costs and extending service life in terms of material selection and design.
Rescue and Salvage
Tugboats play a crucial role in maritime rescue operations, helping stranded vessels to escape danger and carrying out salvage tasks such as dewatering and firefighting.
Flexibility and Maneuverability
The characteristics of a tugboat include powerful propulsion, flexible maneuverability, and efficient towing capabilities, making it an indispensable role in modern shipping.
Specification of Trawler Propeller
|
Blades |
4 |
|
E.A.R. |
0.44 |
|
Diameter Range |
36" - 72" |
|
Materials |
Bronze, NiBrAl |
|
Boat Types |
Shrimp Boats / Trawlers / Draggers |
Material of Trawler Propeller
The propeller is an important part of the ship. Selecting a right raw material for making the propeller which has a great influence on its performance. For a long time, the copper alloys, and nickel-aluminum bronze is always the first choice and widely used as the marine propeller materials.
●The copper alloy has a good performance of corrosion resistance, which can basically meet the requirements of the propeller in seawater;
● The melting point of the copper alloy is so low that is convenient for melting and casting. The casting item does not need to be heat treated, and it is easy to finish machining and used.
At present, manganese brass (ZHMn55-3-1), aluminum-manganese brass (ZHAI67-5-2-2) and manganese-aluminum bronze (ZQAI12-8-3-2) are commonly used in China. Among them, the neutralization performance of manganese-aluminum bronze is better than Manganese brass and aluminum-manganese brass are excellent. The subsequent development of more types of stainless steel materials greatly improves the overall performance of the propeller. Moreover, people have not stopped exploring new materials and performance for ship propellers.

Testing your propeller's performance is simple, not to mention fun. When you have the right propeller for your boat, and it's functioning properly, your boat's engine should operate as expected. This means that your engine should run within the manufacturer's designated RPM when running at Wide Open Throttle (WOT). If this doesn't occur, you probably need a new prop for your boat.
Make sure your gas tank is full, but that the overall load in your boat is “normal.” Do not test with the maximum number of people on board, but make sure the load accurately mimics what you normally carry.
Run your boat for at least 5 minutes to ensure your engine is properly warmed up.
Find a wide open piece of water with little or no other boat traffic.
Give your engine full throttle and get it up to maximum speed.
When at maximum speed, note and record your RPM.
Take a run in the other direction, repeating steps three through five. Taking two measurements and averaging them ensures a more accurate reading by eliminating factors such as wind and current.
FAQ
We're professional trawler propeller manufacturers and suppliers in China. If you're going to buy high quality trawler propeller, welcome to get quotation from our factory. Also, custom service is available.
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