Machine for continuous and automatic moulding and pre-hardening of string cheese, like pizza cheese mozzarella, with variable weight and shape (cylindrical shape cheese, block shaped cheese) ranging from 250 gr. to more than 5 Kg. Machine could be installed in existing processing line or could be assembled in a full processing line starting from cooker/stretcher up to packaging This machine can be used also for analogue mozzarella to direct "hot packaging" by thermoforming-vacuum machine