The invention relates to a curved belt conveyor comprising: a supporting frame (1); at least one guide rail (2, 2') fastened to the supporting frame (1); a conveyor chain (3) guided inside the guide rail (2, 2'), and; a conveyor belt (5) that can be displaced by means of the conveyor chain (3) along a conveying surface that has the shape of a sector of a circle. The curved belt conveyor has an outer supporting frame (11), an inner supporting frame (12) and radial struts (13, 13'), these radial struts (13, 13') being able to be connected to the outer and inner supporting frame (11, 12) in a plug-in type manner.
