Dust-laden gas fans are designed to move air streams containing high concentrations of solid particles, such as sawdust, cement dust, or metal ore fines. They protect against abrasion and erosion.
Impeller blades are constructed from hardened alloys or carbide overlays, and housings are lined with wear-resistant coatings. These fans handle 5,000–80,000 CFM at pressures up to 6 kPa.
Variable frequency drives (VFDs) offer load-based control, adjusting speed based on inlet pressure and particle concentration sensors to maintain consistent flow and minimize energy use.
Maintenance is facilitated by split-housing impeller access, external grease fittings, and inline abrasion monitoring. Dust-laden gas fans ensure reliable operation in the most punishing particulate environments.