Description Overview Spinning positions: 280 Comber type: OB20B Rotor type: 31MD Rotor diameter: 31 mm Rotor speed: 80,000 to 120,000 rpm Range of opener speed: 6,500 to 8,500 Range of count: 20 to 30 tex Specifications Cleaner: Uster MK-C15 Bobbin: 4°20' Bobbin diameter: 170 x 59 x 28 mm Maximum package diameter: 220 mm Maximum package weight: up to 2.1 kg Waxing device: included