PRO-POINT PROCUT 80 Manuel page 25

V1.0 80A PROCUT 80 Plasma Cutter 8784480
plasma cutter, then the compressor will run continuously when you are
plasma cutting.
A compressor with a CFM rating slightly higher than the plasma cutter
would be more appropriate. A compressor with 1.5 to 2 times the plasma
cutter's requirement is better if you are doing a lot of cutting or cutting thick
plate. The same air consumption, but slower cut speeds equals a longer
cut time.
AIR QUALITY
Good air quality is essential to quality plasma cutting and consumable
life span.
The air from a compressor or gas cylinder should be dry and free of
particulate matter. Minimizing the moisture in the air supply is absolutely
critical to quality plasma cuts and longevity of consumable parts.
When moisture droplets enter the high temperatures in the torch's
plenum, as much as 19,832°F, they immediately break down into
oxygen and hydrogen, which alters the normal chemical content of air in
the torch. These elements change the plasma arc, which alters the
nozzle orifice's shape and causing the nozzle to wear away. This affects
the cut quality in terms of edge, dross formation, a square edge and
edge smoothness.
As a minimum, be sure to drain the receiver (tank) on the air
compressor daily. Most air plasma systems have an on-board
particulate filter and/or a coalescing filter with an auto drain that will
remove some moisture from the air supply.
For home workshop and light industrial users the on-board air filter is
adequate. Most situations will require additional filtration to prevent moisture
from affecting the quality of the
plasma cutter. In most cases it is
recommended to install a submicronic
particulate filter that is designed to
trap water through absorption. This
style of filter has a replaceable filter
cartridge that absorbs water and must
be changed as it nears saturation. It
should be installed close as possible
to the air intake of the plasma cutter.
Fig. 15
TECHNIQUE TIPS
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