Shoe machine for pressing soles. Pneumatic machine with two diaphragms and double pressure regulation. Independent pressing times. Machine operation can be selected for automatic or manual mode. Works with any type of shoe or boot. Large pressing chamber with vacuum contraction of the outer membrane, which allows working with heels of up to 16 cm in height. Double safety system, pressing is activated only when the user removes his hand from inside the machine. Electromechanical safety barrier with high resistance material, prevents the operator from closing the machine and injuring his hand. The machine has a front opening to facilitate quick access to the lower adjustment area of the boot shaft. Membrane quick change system.