Machine for washing and \/ or sterilize Loose Products, which comprises a Processing Chamber (12) provided with at least a functional Opening Load (20,22) and \/ or discharge (26) and contains a rotating Drum (16) provided with a Plurality of compartments, angular 32)This Machine comprising at least one element of Drum Drive (85),Provided with a Drive Shaft (90) configured to make the rotating Drum (16) to rotate around a rotation AXIS (X),Characterized in that for each of these compartments Angle (32),At least one Reference position corresponding to the rotating Drum (16) is defined with respect to the position of the individual compartment with respect, at least,A Functional Opening Load (20,22) and \/ or download (26) and the Machine comprises: at least one Automatic angular Detection Unit (15) configured to provide a reference Signal related to the position AngleReference angle of each compartment (32) of the rotating Drum (16) with respect to the reference position corresponding to the rotating Drum (16) - at least one Control Unit (98): (i) configured to communicate with the automatic angular Detection Unit (15) (ii) select from a reference position of the reference positions for the TamboR Swivel (16) (iii) to rotate the rotating Drum (16) to find the position of Selected Reference (iv) provide and maintain the rotating Drum (16) at the reference position.Ccionada.Máquina para lavar y/o esterilizar productos sueltos, que comprende una cámara de tratamiento (12) provista de al menos una abertura funcional de carga (20, 22) y/o de descarga (26) y que contiene un tambor giratorio (16) provisto de una pluralidad de compartimentos angulares 32), comprendiendo dicha máquina al menos un elemento de accionamiento del tambor (85), provisto de un eje impulsor (90) configurado para hacer que el tambor giratorio (16) gire alrededor de un eje de rotación (X), caracterizada por que - para cada uno de dichos compartimentos angulares (32), al menos una posición de referencia