YZB series of air-cooled (water-cooled) hydraulic power unit supplies hydraulic power for drill equipments in onshore and offshore, especially suitable for hot area in the desert and for continuous working situation. It features ...

The forced draft cooling system is to cool down the cooling circulation for magnetic eddy brake and draw-works to make them working in safe condition. Thus they can work in full capacity and give long service life. The system can be used ...