Hydraulic rotary reducer with power head is the upgrading product of rotary bearing, which usually consists of worm, turbo rotary bearing, shell and power source. The housing is made of high-quality cast steel with very high strength. The worm wheel and worm gear are all made of 42CrMo and diluted by glow ion. The abrasion resistance is higher than the traditional 50Mn material of gas nitride in China. Because the core components adopt rotary support, they can bear axial force, radial force and tilting moment at the same time. Rotary drive with easy installation, easy maintenance, to save installation space to a greater extent. This product can be widely used in the field of construction machinery and new energy, such as heavy-duty flatbed transport truck, wooden crane, container crane, single-column crane, girder crane, truck crane, aerial working truck, solar generator system and so on.