VWR MicroStar 12 Ambient Microcentrifuge Supplied with Aluminium Rotor for 12 x 1.5/2.0 ml Microtubes with Stainless Steel Lid Capacity: 12 x 1.5/2.0 ml Max Speed/RCF: 13,400 rpm/12,100 g Autoclavable rotor and lid Brushless Induction Motor Microprocessor Control with Digital Display Timer: 15s to 30 mins (plus short spin) Acceleration/Braking Time: 13/12 secs