Snail aspirators are manufactured using DKP or black sheets. In high pressure models, the fans are directly coupled to the motor shaft. Snail aspirators are manufactured in many different models and types with a capacity range of 500 m / 3 to 100,000 m3 / h.

Snail type fans are generally used in industrial environments. It allows the removal of dirty, dusty and particle-laden air from the working environment. Welding and paint shops are generally very dusty places. Dust suspended in the air disrupts the balance of the aspirator systems produced for comfort. Snail-type aspirators can withstand high rotational pressure thanks to their stronger fan structures. Backward curved fans with rare blades are used in volute type aspirators.