The nyb fans used for this application are usually blowing artificially-created snow on to trails or recreational slopes.  Equipment is mounted on tracked vehicles and depends upon quick setup and logistical response.  These nyb Axial designs are developed with the snow making OEMs to provide rugged service in a seasonal business.  Equipment sits idle for several months a year and must be depended upon to respond with minimal maintenance on short notice.  nyb offers cast aluminum impeller and direct drive fans for dependable service.  Extended lubrication lines and long-life bearings are required.