A device for banding products includes a supply mechanism for supplying band material from a supply roll at an unwinding speed, a strap chute for forming a loop in an end portion of the band material around a space for accommodating products at a banding speed, a cutter for cutting off the end portion and a sealer for closing the loop. A buffer mechanism is disposed between the supply mechanism and the strap chute, and includes at least a first and a second assembly of conveyors for conveying the band material from the supply mechanism to the strap chute at a conveying speed and a motor for driving the conveyors. The first and the second assembly of conveyors are driven independently of each other.