Deep well drilling rig and heat pumps WPU-130 on a trailer

WPU-130 type drilling rig. It is used in making holes for heat pump installations in rocky areas. The drilling rig has a range of drilled holes from Ø30 to Ø110. It is equipped with an upper hydraulic hammer and a lower water or air hammer. Two hammers are used when drilling. At the beginning of the process, the drill string is driven into soft soil with a hydraulic hammer operated by the drilling rig operator. When the rod reaches the level of hard rocky ground, very high pressure water is applied to the lower impact hammer, which also activates the hammer. Thanks to this method, drilling depths of up to several hundred meters are achieved.