Dust cartridge selection often starts with “how much filter area”, but area is a result, not the starting point. Dust size, stickiness, moisture and the cleaning method determine construction and media first.
Start with whether dust sticks
Sticky dust can bridge between pleats, so cleaning pressure and pleat pitch must be considered together. Wet or oily dust also needs a check on whether pulse cleaning is suitable.
Then check filtration velocity and pressure drop
The same cartridge behaves differently at different airflows. Higher filtration velocity speeds up pressure-drop rise and can reduce cleaning effectiveness.
Confirm the mounting interface last
Tube-sheet hole, installed height, sealing method and mounting direction define the end caps and support. Confirm the structure before discussing batch supply to avoid rework.