Replacing the rotary motor cannot be ordered solely based on the excavator's tonnage.Different models of the same tonnage have different motor displacements,brake structures,valve group set pressures,oil port positions,output splines,and installation flange sizes,and their appearances are similar but cannot be directly interchanged.Incorrect selection,resulting in weak rotation,slipping,abnormal noise,pressure build-up,and installation interference.Prioritize checking the OE part number before comparing the multi-dimensional key parameters of the actual product.　　Firstly,confirm the...

　　The rotary motor is the core hydraulic component of the excavator's on-board rotating mechanism,commonly known as a rotary motor.It is mostly a high-speed plunger motor and is usually combined with a rotary gearbox(planetary gearbox)to form a rotary assembly.It converts the hydraulic energy output by the main pump into mechanical energy and drives the cab,boom,and counterweight to achieve a 360°rotation of the entire vehicle.Internally integrated wet multi disc parking brake,rotary relief valve,oil replenishment valve,and buffer valve,with multiple functions of driving,buffering,and br...