The main model of mud agitator designed, developed and produced by the company are HJB22, HJB18.5, HJB15, HJB11, HJB7.5, HJB5.5. The reducer adopts worm or worm wheel, with tight structure, good meshing performance and reliable work, The explosion-proof electric motor and reducer input shaft are connected through elastic shaft coupling instead of belt transmission, and therefore rotation speed of the wave wheel is constant, the maxing intensity is large and the range is wide, which has structurally avoided the phenomenon of engine’s overload at startup, suitable for wild field operation under poor conditions, and it is convenient to be installed, regulated or replaced.