In fact, both Roller Dryers and Drum Dryers refer to the same thing. The machine is composed of Drum and Applicators.
For example, sweet potatoes have various
names: scientific name: Ipomoea batatas, also known as yam, red yam, sweet
potato, sweet potato, earth potato (in the north), red potato (in many
dialects), line potato, white potato, gold potato, sweet potato, red potato,
pillow potato, morning glory, white yam, fennel yam, red-skinned sweet potato,
and mountain yam (dialect), among others. Although the names are different, they
all refer to the same thing.
Drum Dryer is a more formal name, known by professionals in the drying equipment field. General users or laypeople may call it Roller Dryer but both terms refer to the same thing.
