These are also manual citrus juicers. They have an arm on left/right side that you have to pull down to force the juice out of the fruit. The mechanism is quite simple. You put a half-cut fruit on the bottom squeezing part and then use the handle to pull down the top squeezing part onto that forcefully to press the juice out. The arms are mostly made out of metal and on some low-cost models they can break with undue force. They are also known as citrus presses because there is no reaming action involved in it.
The gist: For those looking to get the most out of their leafy greens, the Lexen GP27 is the way to *manually* do just that. This juicer is the solution for those that don't want to lay out hundreds for an expensive masticating juicer, but also don't want to settle for a cheap, crummy manual model. As the folks at The Healthy Juicer say, this thing was designed to be "simple, mobile, versatile, and easy to clean." Simple is right. To use, just put a put a juice cup under the spout, place your greens into the chute, and start churning. Cleaning this thing is a breeze, since all you have to do is unscrew the parts, rinse them off in the sink, and boom—you're done. Thanks to its high juice-yield and cold-press technology, you can rest assured your greens will be nutrient-packed to the max.
The Hurom comes with a lidded pitcher for collecting juice, but its slow-turning auger produced so little splatter that we also had no problem putting our own glass directly under the juice spout. Clean juicing makes for means you’re not beholden to the Hurom’s pitcher, making it easier to juice straight into your to-go cup and reducing counter clean-up. (When we tried this with the Juiceman, we ended up with a foot-wide splatter radius.)