<p>The pressing apparatus, suitable for pressing the sides of tyres, comprises: a supporting element (7; 10); a pressing disc (18) freely mounted rotating on an arm (13; 13') which can be fitted to said supporting element (7; 10), said arm (13; 13') being fitted to said supporting element (7; 10) in a way that can be chosen between a fixed configuration and an oscillating configuration.</p>
