Hydraulic power unit HAZV VII is designed to supply devices in underground mining excavations and can be used in the zone "a", "b" and "c" of the methane explosion hazard and A and B level of the coal dust explosion hazard. The unit is designed in particular to power devices such as: anchoring machines and hydraulic drills, hoists and other devices with hydraulic drive. It is possible to extend the use of the hydraulic power unit to cooperation with other devices with hydraulic drive.