Apparatus and assembly for excavation

Excavation apparatus for an operating machine comprising:

• an apparatus body comprising a coupling portion to the operating machine and delimiting a first body compartment wherein an excavation tool of said apparatus is partly housed, rotating around a rotation axis;
• a self-leveling body, comprising a pair of abutment runners with a working surface and rotatably mounted in an idle manner with respect to the apparatus body, wherein the coupling portion is angularly adjustable with respect to the abutment runners;
• the self-leveling body comprises at least one pair of transverse walls axially offset along the rotation axis, rigidly connected by a pair of longitudinal walls of said body for delimiting a box-shaped structure housing the excavation tool protruding frontally to the abutment runners;
• wherein the apparatus body is mechanically connected to the self-leveling body to weigh in a balanced manner on the transverse walls and on the abutment runners.