Description Overview Barmag filament winders 24 units of type SW4-SSD, year 1984, with 4 cops each 32 units of type SW4-SLD, year 1981, with 2 cops each New inverter drives installed in year 2011 Specifications Operating speed: 3250 rpm Maximum speed: 3500 rpm Take up package diameter: 420 mm Take up package weight: 14 kg