he main structure of the steel pipe inner wall sand blasting machine consists of a compressed air system, an abrasive feeding system and a control system.
The compressed air system generates high-pressure compressed air, which is delivered to the blasting gun via pipelines to supply power for the blasting operation.
The abrasive feeding system conveys abrasive particles to the nozzle. The two most common feeding types are pressure feed and gravity feed. The pressure feeding system pushes abrasive particles from the hopper to the nozzle by means of compressed air, while gravity feeding relies on the natural downward flow of abrasives to the nozzle.
The control system regulates the machine’s operating parameters, such as blasting pressure, blasting duration and blasting distance. These parameters can be adjusted according to varying workpiece requirements to achieve precise blasting results.
The design and layout of these three systems enable the sand blasting machine to efficiently and accurately treat the inner walls of steel pipes, remove contaminants including dirt and scale, and ensure safe, environmentally friendly operation.



