The Z36 HK provides speeds up to 30,000 rpm (65,390 ×g) and nine available rotor options. The unit has a large LCD display and an adjustment knob that makes it easy to set all operating parameters. These parameters include speed (rpm or rcf); run time (up to 99 hours); temperature (㪬 C – 40 C); and others. Rotor recognition system works as soon as the lid is closed. The rotor number is displayed and all settings are limited to the maximum specifications of that rotor. The unit will spin six tubes of 50 ml capacity at speeds up to 41,410 ×g.