HCQ/HCA/HCM/HCV series light high-speed marine gearboxes self-developed by the company are designed of power ranging 20kW~2300kW, ratio ranging 1.5~3.5:1 and complete in specifications. Product with ‘Q’ in code is with cast iron housing, with ‘M’ aluminum housing and with ‘A’ and ‘V’ with down angle transmission structure. These products enjoy high market share, are widely used on various yacht, traffic boat, passenger boat. Product design and manufacturing capability are in national leading and international advanced level. Main features: 1. Possess functions of clutch & de-clutching, speed reduction and bearing propeller thrust; 2. Compact in structure, small in volume and light in weight; 3. High rated input speed and high manufacturing precision; 4. Good complete-machine performance, low noise and small vibration; 5. Match high-speed diesel engine, mainly used on medium-to-small high-speed boats; 6. Apply mechanical and automatic control, realizing local emergent control and remote control of the gearbox.