Rotary motor

The safety valve (relief valve) in the rotary motor is installed on the top of the rotary motor, the pressure of the rotary loop is limited to the set safe pressure range, slowing the impact of the rotary motor when starting or stopping, the safety valve is two-stage design, when the safety valve is opened, there will be no high pressure, so when the rotary motor stops, there is little vibration load.

The function of the slow return check valve is to replace the oil lost during the stop of the turning action. In the process of stopping or decelerating the rotation, due to the sudden disappearance and reduction of the working hydraulic oil, the rotation motor is prone to vacuum, so in the whole system, special design is required to avoid vacuum damage to the motor. Rotary motor is the key component of hydraulic excavator, its performance is good or bad, the quality is good or bad directly related to the production efficiency of excavator. The choice of accessories is crucial.