What is the difference in principle between a liquid sandblasting machine and a manual sandblasting machine?

In recent years, China's industrial development has been very rapid, and people's research equipment is also constantly improving. The emergence of automatic sandblasting machines has had a huge impact on people's production and life. Sandblasting machines are the most widely used abrasive blasting products. Sandblasting machines are generally divided into dry sandblasting machines and liquid sandblasting machines, and dry sandblasting machines can be divided into suction and compression types.
Dry press type sandblasting machine.
1. Usually, a complete working unit of a press type dry sandblasting machine is composed of four systems: pressure tank, medium power system, pipeline system, and control system.
2. The working principle of the press in dry sandblasting machine. The press in dry sandblasting machine is a type of machine powered by compressed air, which presses abrasive into the sand conveying pipe through a sand valve. The working pressure established by compressed air in the pressure tank is sprayed onto the machining surface to achieve the expected machining purpose. In a press type dry sandblasting machine, compressed air is not only a feeding power, but also an acceleration power.
Dry suction sandblasting machine.
1. It usually consists of six systems: structural system, medium power system, pipeline system, dust removal system, control system, and auxiliary system.
2. Working principle.
The suction dry sandblasting machine is a type of negative pressure, powered by compressed air and formed in the spray gun through high-speed airflow. The abrasive is sucked into the spray gun through a sand tube and sprayed through a nozzle to achieve the expected processing purpose. In a suction type dry sandblasting machine, compressed air is not only a feeding power, but also an acceleration power.