Vortex Mixer LVOM-B11 Labtron Vortex Mixer is a compact, high-performance device designed for gentle mixing at a fixed speed of 2800 rpm. Its circling/orbital operation ensures uniform mixing with minimal vibration and low noise. Operating in a range of 5-50°C, it features continuous and inching modes, making it ideal for mixing liquids in tubes and flasks and resuspending cells.