Description Overview R 522 for cops 14 x for double twist 160 x fused for machine Year end 1980’s 1990’s Specifications Maximum cops height: 420 mm Coiler diameter: 135 mm Torsion range: 39 to 1140 tpm Yarn count: 70 to 330 d.tex Electrical tension: 3 x 380 V, 50 Hz