It runs at turn 1500 R.P.M.. and it is great for juicing lemons, limes, oranges and grapefruit. The cleaning of the unit takes less than 1 minute. All easy to clean components are manufactured of sanitary material. Dynajuicer is great for juicing lemons, limes, oranges and grapefruit. Cut the fruit into 2 parts, present an half fruit on the centrifuge cone after making sure that the glass is ready and that the upper ring dedicated to avoid splashes well covers the Dynajuicer. For grapefruit, you have to remove the upper ring before putting the fruit on the centrifuge cone. Then, replace the upper ring