Description Overview Ratti final twisting machines Model: R 522 DT Year: 1984 Specifications Width: 1450 mm Length: 15000 mm Height: 2000 mm 160 positions for double twist Pot size: 15.24 cm (6 inches) Diameter of coiler: 135 mm Diameter of spindle: 52 mm Length of spindle: 420 mm Spindle for double twist of cop and for bobbin until diameter of 175 mm Torsion: 39 to 1140 tpm Rpm maximum: 10000 x 2 Count yarn: 70 to 330 dtex