Electric Juicer

What is an electric juicer is it? (Mechanics, its parts and how they work)

This is a spinning chuck by a motor located in a sealed bowl (to catch drips) on a waterproof or casing.

The chuck "crush" the fruit segments to release the juice.

A blender is totally different, because it generally has the blades and chops the fruit into fine particles.

http://wholefruitjuicer.info

It's actually a mini blender far as I know.