Not a lot of people know what a ribbon blender is, much less how it is made, and both answers are pretty cool. Ribbon blenders consist of a horizontal pole that has paddles attached to it, and when that pole is turned then the paddles rotate and turn the mixture.
They are common in most industries, and work as the outer layer of panels move around clockwise with the inner layer moving around counter-clockwise. This ensures a good flow for the mixture and prevents any clumps as well as keeping everything thorough.
Easy to build
In order to build a ribbon blender, a worker takes a layer of steel and rolls it in a large press, eventually folding it into a U shape. Then the U shape is welded to the sides of what will become the mixer. A large steel pole is connected to the paddles, which are all carved out of steel using a plasma cutter.
It’s a lot like using stencils to draw on a sheet of paper and then cutting those shapes out, and the plasma cutter ensures that everything is the same shape. The thick steel paddles are then crushed under a 150-ton weight and are crushed into a thin and curved shape.
The paddles are attached to arms and they are attached to the horizontal pole inside the mixer, and after some initial testing, the first of many ribbon blenders are born and can be put on the market.
They are fast, ensure that the mixture inside is evenly mixed and not clumpy or sticky, and can rotate at around 300 fpm. So, they are mostly used to mass produce an item in a short period of time. Then they can be easily cleaned and the next mixture can be loaded.