9085754 PROCUT 30A Digi Plus Plasma Cutter V1.0
22 For technical questions call 1-800-665-8685
CUT QUALITY
A clean cut depends on several factors. The best quality cut will be
produced when all these variables are set correctly for the material
thickness and type of material being cut.
AMPERAGE
The standard rule of thumb is thicker materials require more amperage.
Set the machine to full output and vary your travel speed with thick
material. Thin material requires lower amperage and a lower-amperage tip
to maintain a narrow kerf. The kerf is the width of the cut material that is
removed during cutting.
SPEED
Amperage and speed are critical to
producing a good quality cut.
Moving faster across the metal
(especially on aluminum) will result
in a cleaner cut (Fig. 8).
Visually follow the arc coming out
from the bottom of the cut to
determine if you're going too fast or too slow.
• The arc exits the material at a slight angle, away from the direction of
travel, when the speed is correct.
• An arc exiting straight down means you're going too slow. You will
have an unnecessary buildup of dross or slag.
• An arc that sprays across the material’s surface without cutting all the
way through means you’re going too fast.
• At the end of a cut slow your cutting speed and angle the torch
forward to cut through the last bit of metal.
DIRECTION
Pull the torch towards you instead of attempting to push it away while
making a cut. The plasma stream swirls as it exits the tip, biting one side
and finishing off on the other leaving a beveled edge and a straight edge.
The bevel cut effect is more noticeable on thicker material and needs to
be taken into consideration before starting your cut, as you want the
straight side of the cut on the finished piece that you keep.
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