A cage (1) provided with a suspended track (3), the track (3) being arranged to guide a tool carrier(2) movably attached to the track (3), and the cage (1) comprising a surrounding holding structure(10) provided with a railing (13). The circumference (3) of the track (3) is smaller than the circumferenceof the railing (13), and the track (3) is provided with a plurality of elongated coupling members(4) for attaching the track (3) to the holding structure (10). Radially to the longitudinal directionof the track, the track (3) is formed with a continuous tight surface, and the track (3) is arranged tobe carrying a load on a top side (30).
