The operation of the air-cooling system requires electricity as the driving energy. When the hot gear oil passes through the heat dissipation area, it stirs the airflow with the fan blades and takes away the hot air through the large-area heat sinks to achieve the purpose of cooling the gear oil. Advantages: It is light and easy to operate, but has poor heat dissipation effect and is not suitable for long-term operation of the machine.

The operation of a water cooling system requires flowing water as a heat dissipation medium. When the hot gear oil in the reducer passes through the heat dissipation area of the cooling water, the temperature is taken away through the heat transfer effect. Advantages: Good heat dissipation effect can ensure that the machine works for a long time without overheating, but sufficient water supply must be ensured.