The hydraulic gearbox is used for the hydraulic cutter dredger ,the usage is make the motor working in the proper speed by the hydraulic system,we are professional manufacturer of the cutter suction dredger,we can manufacture the different hydraulic cutter dredgers according to the customers’ requirements ,for example ,we need know the worklaod,depth of digging etc.According as the situations of the customers,we manufacture the suitable hydraulic dredger for them. Our dredger sells very well to Burma,Thailand,Nigeria,Benin,Togo,Indonesia,Mozambique,England,Russia,Ukraine and so on,the buyers are satisfied with our products and hope to make a long-term cooperation with us.