double unwinding system of omet drastically reduces the time and material needed for job changeover omet took the occasion of its recent &lsquoopen doors&rsquo to launch a simple, yet effective innovation aimed at increasing savings of time and reducing general wastage during job changeovers on its printing presses.the innovation concerns the insertion in line of a double unwinder, a semiautomatic unwinding system for ultrafastchange of the printing substrate. with it, the operator only need to switch from one material roll to another, previously uploaded on the second shaft of the double unwinder, cut, splice and start printing.the second unwinding shaft is an option that can applied to the printing presses of the xflex line. the two shafts can be used alternatively so the preparation of the new roll on the free shaft could be done while the machine is still in operation.the double unwinder helps saving several minutes in the changeover process as a consequence the productivity and profitability of the machine increase with any type of run. let&rsquos make an example with a production speed of average 120 meters per minute, the use of material rolls of 2.000 meters each and 2 8hour job shifts a day, you can save in 1 year 321 hours of productionover a total of 230 days of machine output a year on any omet printing press. this means saving approximately 1090 rolls of raw material
