In this video, we demonstrate the 1.5L XFD III heated laboratory flotation cell in a xanthate collector dose screening test on sulphide ore. You'll see how the fixed 1.5 L cell, 60 mm impeller at 0–1900 r/min, and 40 L/min air intake keep hydrodynamics constant across a dose series, and how the heated cell supports temperature-sensitive flotation. We walk through setup, impeller speed adjustment, froth scraping, and key test variables so you can judge repeatability and fit for your lab.