FIELD: cleaning of pipe internal surfaces. SUBSTANCE: device for cleaning pipe internal surfaces from paraffin and other deposits has body made in form of shaft with two cleaning heads installed on shaft for rotation and having involute profile. Installed between upper and lower parts of cleaning heads, stabilizers and retaining deepening member are plain and rolling bearings. Height of cleaning head is determined by the relation given in invention description. EFFECT: higher efficiency. 2 cl, 5 dwg
