In combination, the track and dolly move the roll to and from the unwind chucks. With the options of “Hold to Operate” or automatic controls, the roll is sent to the chucking area centerline or to any part along the track length without the operator having to physically handle the roll. With the Innoveyance-designed “Cross-Over” concept, a Butt Roll or partially run roll can be discharged out of the gear or operator side of the corrugator at the same time a full roll is being loaded. This concept uses two dollies operating independently along the same stretch of track. There are many applications available using the two dolly “Cross-Over” concept with a full line of accessories to help lift, load, kick, push, catch and rotate the roll.