If you are looking to make a lot of smoothie and if you are also on the lookout for a machine that say, chops veggies, shreds stuff up a bit (soya chunks, maybe?) and mixes solid food; you should definitely take a look at some of the best selling blender food processor combos.
Centrifugal juicers work by chopping fruit or vegetables with a cutting blade, very much like a blender. While doing this, at the same time due to the fast rotational speed, juice gets flung outwards and this then drips into a collection chamber. They are fast, but not as efficient, your pulp won’t be completely “dry”.
Citrus juicers are, as most of you know just machines that get juice out of citrus fruit. There are quite a few kinds out there. Some have multiple cones for different sized fruit while others are designed such that one cone fits all. Here you will find some of the most popular electric citrus juicers, thoroughly reviewed.