McKesson, Fixed Speed Centrifuge McKesson 6 Place Fixed Angle Rotor Fixed speed at 3,400 RPM, Count of 1Product Description McKesson Fixed Speed Centrifuge Six place rotor for use with standard 5 to 10 ml tubes. Can spin up to three 15 ml tubes 2 ml and 4 5 ml tubes can be spun with available adapters. Fixed speed at 3,400 RPM. Dependable mechanical 30 minute timer with bell signal at end of run. High impact plastic housing for years of dependable use. Safety switch in lid shuts off motor when lid is unlatched. Latch release located on the right front