Machine for sandblasting, silica, granules. It works with electric connection of 12 V. You can connect it to a battery as a car battery or the air compressor that is required for the blasting. We recommend the use of an air compressor ….. the blasting pressure is variable because it can be modified from the control panel or the remote control. You can use it at maximum pressure to be able to cross or mark the concrete, wood, glass, iron or any surface or cleaning of historical monuments, graffiti, etc.