Laser cutting air compressor

All Laser Cutters want two additional gadgets which move air: blower which removes surroundings / extracts smoke from machine and air compressor as a source for compressed air for so called air assist.

Why and How
Laser cuts by high temperature, very high high temperature focused in tight beam. Side items of high heat are smoke and fire, both aren’t welcomed addition, smoke disperses laser reducint it’s efficienty and fire causes charring of material / edges and will even escape control leading to serious emergency.

Fire needs atmosphere to burn nonetheless it can also die if you blow too hard, think about a candle in the wind. That is essentialy what air flow assist is definitely for: compressed air flow is extruded straight at the laser head in a very limited stream and is fond of where laser touches material.

Pressure and volume of air
Pressure of atmosphere is key variable for air support efficienty, in our shop we discovered that optimal worth is between 2 and 3.5 bar ( 31-50psi).

To achieve required pressure compressor must push certain level of air through air flow assist opening, exact volume depends upon size of the opening and desired pressure. High quality laser beam cutter heads have little and finely tuned openings while cheaper chinese cutters just blow in general direction via huge holes.

Proper compressor
When choosing compressor you should consider if it can constantly provide desired pressure and level of air. Small airbrush compressors small compressors boast impressive pressure figures but really poor flow rates adequate limited to airbrush pistols. Even if small compressor would be able to push enough air it’ll likely overheat in couple of minutes.


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