The main benefits of injector sandblasting machine are they are more gentle on the sandblasting surface.
Our customers reported that when working with fragile and thin aluminium they prefer gentle low-pressure injector sandblasting machines. Injector sandblasting machines don’t require such a high airflow so that means that the compressor can be smaller and cheaper as well.
The other benefits are the price as injector sandblasting machine are usually cheaper than their pressure counterparts.
But if you require high pressure and speed then you need to look for a pressure sandblasting machine!