Separating apparatus for glass slabs comprising: - a supporting structure, - winding/unwinding means of a spacing wire for spacing the glass slabs, - lifting means connected to the supporting structure and to the winding/unwinding means and configured for lifting/lowering the winding/unwinding means between a lower position and an upper position, in order to keep the spacing wire in contact with a glass slab during the storage operations of mutually abutted glass slabs, to allow storing them separated by at least one spacing wire interposed between two adjacent glass slabs, wherein the winding/unwinding means are composed of at least one reel rotatably connected to the lifting means; and wherein the lifting means are composed of an oscillating support comprising two arms connected by a first rotation shaft of the support and by a second rotation shaft of the reels, said shafts (35, 36) being transverse to the arms, said separating apparatus being characterized in that it comprises: - fastening means of an end of the spacing wire, - actuating means controlled by a control system and configured for actuating the winding/unwinding means and the lifting means in order to keep the spacing wire taut between the fastening means and the winding/unwinding means, and - clutching means associated with the winding/unwinding means and designed to allow the recovery of the spacing wire during its rewinding, the clutching means comprising a clutch connected to the reel and configured for recovering of the spacing wire during its rewinding. - a supporting structure, - winding/unwinding means of a spacing wire for spacing the glass slabs, - lifting means connected to the supporting structure and to the winding/unwinding means and configured for lifting/lowering the winding/unwinding means between a lower position and an upper position, in order to keep the spacing wire in contact with a glass slab during the storage operations of mutually abutted glass slabs, to allow storing them separated by at least one spacing wire interposed between two adjacent glass slabs, wherein the winding/unwinding means are composed of at least one reel rotatably connected to the lifting means; and wherein the lifting means are composed of an oscillating support comprising two arms connected by a first rotation shaft of the support and by a second rotation shaft of the reels, said shafts (35, 36) being transverse to the arms, said separating apparatus being characterized in that it comprises: - fastening means of an end of the spacing wire, - actuating means controlled by a control system and configured for actuating the winding/unwinding means and the lifting means in order to keep the spacing wire taut between the fastening means and the winding/unwinding means, and - clutching means associated with the winding/unwinding means and designed to allow the recovery of the spacing wire during its rewinding, the clutching means comprising a clutch connected to the reel and configured for recovering of the spacing wire during its rewinding. - fastening means of an end of the spacing wire, - actuating means controlled by a control system and configured for actuating the winding/unwinding means and the lifting means in order to keep the spacing wire taut between the fastening means and the winding/unwinding means, and - clutching means associated with the winding/unwinding means and designed to allow the recovery of the spacing wire during its rewinding, the clutching means comprising a clutch connected to the reel and configured for recovering of the spacing wire during its rewinding.