The second-gear reduction ratio is set in the follow-up gear of the marine two-speed gearbox, and the propeller can obtain different torques through the fast and slow gear shifting of the gear box, so as to achieve the balance between the ship, the engine and the propeller, and improve the operating economy of the diesel engine. Ships equipped with two-speed ratio gearboxes can save fuel consumption by 6-10% throughout the year.
The marine two-speed gearbox has the functions of fast speed, slow speed, reversing, clutching, and bearing propeller thrust. According to customer needs, you can choose the operation methods such as pulling the flexible shaft, pneumatic control or electric control (with manual emergency control next to the machine). Two-speed marine gearboxes are mainly used in transport vessels, fishing vessels, tugboats, port vessels, and various engineering vessels.
