JZR-GD sandblasting machine is suitable for surface treatment of steel pipes and steel cylinders. It is a special sandblasting device for surface treatment of oxide scale and rust. It is used in the sandblasting process of cleaning the inner wall of petroleum, chemical industry and pipelines. It is a more economical equipment for cleaning, removing rust, paint and dirt on the inner wall of large pipe fittings and steel cylinder structure workpieces before coating.