Burgolovka K187 / 80 TKZ

The six-cone drill head 187.3 / 80 TKZ (hard, strong abrasive) is designed for low-speed drilling with coring. The burgolovka consists of a prefix and a housing. The casing is a welded structure consisting of an internal section with pins for internal cones (core forming), three outer sections with pins for external borehole cones and pads. The support of each bore-forming cone consists of one radial and two thrust bearings, and the support of the core-forming cone consists of one radial and one persistent plain bearings. The supporting surfaces of the trunnions are hardfaced. The supply of flushing fluid to the bottom of the well is carried out through 12 channels of circular cross section. Armament cones made of carbide teeth with a wedge-shaped rock-cutting surface.