What is a negative pressure sand blasting gun
Negative pressure sand blasting gun, which is also used for box type sand blasting machine, has an inlet port and a sand inlet port.
The negative pressure generated by the gas in the sand blasting gun sucks the sand material into the sand blasting and is then driven out of the sand blasting gun by the gas.
There is no switch on this blasting gun, and an additional pressure switch is required.
There is also a pistol sandblasting gun with a switch on the gun body. In other words, the Kale-type sand blasting gun has a price of about 200-300 yuan.
The component nozzles inside are relatively easy to damage and can be replaced. Its materials are divided into boron carbide and tungsten steel. The service life of boron carbide is longer than that of tungsten steel. Generally, a boron carbide nozzle is selected for replacement. The price is 120-180 yuan. Depending on its specifications.
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