Pipe inner sand blasting machine1. Outside size(mm): 140*3502. Applicative pipe inner-wall diameter: 60mm - 250mm Pipe inner-wall sand blasting machine Outside size: Φ 140*350mm Weight: 4 Kg Applicative pipe inner-wall diameter: Φ 75mm - Φ 300mm Air consumption volume: 3.1 m3/min Working pressure: 0.5Mpa - 0.7Mpa The max abrasive size: 1mmmainly used to derusting and sanding blast in the inner-wall of the pipe which diameter between 60mm to 250mm and its clean grade is up to SA2.5. The available abrasives of the machine are: Shot metal, mineral ore. The granularity is 25 screen mesh (0.71mm) and 10 screen mesh (2mm).