TECHNOLOGY | MACHINERY FLAT DIES
Digital tool compares costs for sheet dies
Nordson has developed a digital tool that compares the cost inputs of standard sheet dies with removable lower lips and those of its EDI SmartGap mechanism for rapidly changing sheet thickness. The tool, called Smart-
Gap Payback Analysis, enables sheet manufactur- ers to calculate the payback time for switching to SmartGap technology. The company says that
SmartGap enables manufacturers to make changes in thickness very quickly, extend the range of thicknesses that they can produce, and achieve these improvements while enhancing sheet quality. The system uses a single- point adjustment mecha- nism that changes the lip
BOPP Bulgarian extruder sets speed record
Brückner says that one of its customers – Bulgarian BOPP extruder Plastchim-T – recently set a record in film speed production. Plastchim-T, which
recently installed a 10.4m wide Brückner film stretching line, topped a speed of 600m/min – and an hourly output of 7,600kg, both of them a new benchmark in
50 FILM & SHEET EXTRUSION | December 2018
oriented film production, said Brückner. The performance has
been achieved due in part to new line components such as a high speed machine
direction orienter (MDO), new sliding chain track system, tailor-made surface treatment system and a special winding concept. Aydan Faik, owner of Plastchim-T’s, said: “The new line was originally meant as an investment in the future, and speeds of 600 m/min were only expected within the next two years.” �
www.brueckner.com
www.filmandsheet.com
gap while modifying the length of the lip land to provide the most appropri- ate conditions for the newly adjusted thickness as the sheet exits the die. By mechanically linking the adjustment of these two key process variables, the SmartGap system ensures a proper set-up of the die and takes substantial time and guesswork out of the process for achieving desired sheet properties. Users enter two types of
information: the one-time cost of equipment invest- ment for a standard sheet die with removable lower lip and for a new SmartGap system; and process data – including die length, output rate, number of die gap and die lip changes, number of working days, raw material
cost, approximate product selling price, and burden cost of sheet line per hour. Using these inputs, the tool calculates the daily output values of the two systems, including down- time, missed production output, downtime cost, missed product gross profit, and total downtime cost; compares the time required for changing die lips versus that needed for changing the die gap in the SmartGap system; and estimates how long it would take for a return on investment. Payback time is typically
a matter of months, said Sam Iuliano, senior techni- cal manager for Nordson’s EDI brand. �
www.nordson.com
CAST FILM
Malaysia buys water-
cooled line Amut Dolci Extrusion of Italy recently supplied a cast line to EB Packaging of Malaysia, to make stretch film. The line is 2000mm wide, for film configuration in seven layers. “We reached the maximum speed of 900 m/min in winding and maximum line output of 1700 kg/h during the acceptance test,” said Siow Chew Kiong, CEO of EB Packaging. Because of the hot, humid climate in Malaysia, the company was cautious about working tempera- ture of all electronic parts. So, the container for electronic parts is air-con- ditioned while all the drives for the extruders are water cooled – making overheating impossible, said the company. �
www.amutdolciextrusion.it
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