Description Overview Rieter open-end spinning machine Model: BT 903 Year: 2002 Quantity: 2 Specifications 240 rotors Rotor diameter: 46 mm on 1 machine Rotor diameter: 54 mm on 1 machine Rpm: 60,000 per minute (50 mm rotor diameter) for yarn production from Ne 5 to Ne 14 Paraffined