A LAUNDRY WASHER-DRYER HAVING A TUB WITH IMPROVED MECHANICAL STRENGTH

The present invention relates to a laundry washer-dryer (1) comprising a drum (2) that is rotated around the horizontal axis by a motor (M) and wherein the laundry is placed, a shaft (3) that transmits the movement received from the motor (M) to the drum (2), and a tub (8) wherein the drum (2) moves, that is produced from rigid thermoplastic and that has a circular front wall (4) with the laundry loading opening arranged at the centre thereof, a cylindrical side wall (5), a circular rear wall (6) and a hub (7) that is arranged at the rear wall (6) and where the shaft (3) is borne. The rear wall (6) of the tub (8) is at least partially produced from a plastic material with high mechanical strength and different chemical structure than the plastic material used for producing the front wall (4) or the side wall (5). Alternatively the rear wall (6) of the tub (8) is at least partially produced by adding agents increasing mechanical strength to the plastic material used for producing the front wall (4) or the side wall (5).