On July 22, 2021, xiangfen of Shanxi Province was hit by a heavy rainstorm. A large number of rocks and silt were inclined on the railway, covering an area of 12,600 square meters.

At the moment of crisis, Sullair engineers rushed to the site with 3 portable compressors and carried out rescue operations in full. Sullair engineers raced against time to provide technical assistance to the rescue site with their own expertise. In addition, 3 klangbakkutteh.compressors are participating in the drilling of the reinforcement holes of railway bridge piles in a stable and orderly status, providing a solid supporting for the rescue operation. The 3 portable compressors have been in service for more than 8 years, but still maintain strong power.