A belt-type conveyor with adjustable format comprising a first end (5), which rotatably supports a first driven pulley (7) and a second driven pulley (8) which are coaxial, and a second end (6), which rotatably supports a driving pulley (9) and a guiding pulley (10) which are coaxial, a conveyor belt (12) being wound around the pulleys (7-10), being closed in a loop and forming first and second upper active parallel portions (13,14), which are connected by first and second lower portions (15,16) that cross in an X-like arrangement. |