HC-series marine gearbox self-developed by the company is of power ranging 10kW~3000kW, ratio ranging 1.5~20:1, complete in specifications, high market share, widely used in heavy loaded ships such as transport, fishing and engineering boats. Product design and manufacturing capability are in leading nationally and advanced internationally level.

Marine Gearbox D300A possesses functions of speed reduction, ahead and astern clutching and bearing propeller thrust. It is designed of vertically offset and one-stage transmission, featuring in small in volume, large in ratio, light in weight and easy in dismantle & reassemble and maintain.