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Low-speed and high-thrust paddles are suitable for tugboats, which are suitable for low-speed navigation and have the characteristics of high efficiency and low cost.
Normally the low speed propeller is mager for the pushing power like tug boat and fishing trawler, because their engines running rpm is low and gear box ratio is big, for example like tug boat engine si 500hp 1800rpm so its gear box normall will choose as 5:1 and 6:1, then its propeller rpm is 300/min or 360/min, though its speed will come down but its push power and dragging power is more stronger. Low-speed propeller will come to big diamter and heavier weight, but this will be more easy to produce by our company.
Welcome to visit our company in Ningbo and Hangzhou City, China. Our mail is propellerslae1@126.com and 13989347288@139.com
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http://www.lifapropeller.com/