■ A Robust and Sturdy Diecast Construction Vortex Mixer ■ MBR(Methyl Methacrylate Butadiene Rubber) Feet for Ultra Stability and Vibration Damping ■ with Certificate & Traceability : Controlled by Serial Number, Certificate, Delivery-information, and Traceable Data Base System ■ Ideal for mixing solutions in test tubes or small flasks with circular, oscillating movement ■ Gentle mixing to re-suspending pellet ■ variable speed up to 3,300rpm ■ Counter balance design for minimal body vibration ■ Speed regulation through knob provided on the control panel ■ Electronic speed control for constant speed even during changes in load ■ Conical tube can be mixed smoothly by hand holding ■ circuit orbit : 4mm ■ Analog phase controller ■ Brushless AC motor ■ Max load : 0.5kg ■ Aluminum die-casting with powder coating ■ 3-position power switch operates ■120V, 50/60Hz