The two machines are both for skirt and they are referred as accordion folding by people somehow.

Accordion is characterized by the shape close to the musical instruments.

For instance, there are two types of accordion. Sunray vertical accordion and flat accordion. The difference between these two are obviously size distribution and shape.

Flat accordion is made on the ZJ-217 fabric pleating machine and the pleats lie down like sleeping.

Sunray vertical accordion is made on the ZJ-516 sunray skirt pleating machine and pleats are small on top while big at the bottom. They are like “standing” compared to the “Sleeping”

Pleats.