16 Bend-Tech Dragon A400
Plasma Cutting Guide
Consumables
01
Torch Mounting
• Torch collision can cause physical damage to the consumables. Torch collision can damage
the Torch and lead to complete Torch replacement. Always ensure Torch height is set
correctly. Ensure Torch is mounted on the machine correctly.
• Ensure the Torch is tight in the Toolhead and not vibrating during the cutting process. If
the Torch is not secured properly and moves even slightly during the cutting process it can
result in poor cut quality.
Cut Settings
• Best cut quality is usually achieved when amperage is set to 95-percent of the nozzle’s
rating. If the amperage is too low the cut will be sloppy. If the amperage is too high it will
shorten the nozzle lifespan.
• Ensure the Torch does not pierce too low. Optimum pierce height is 1.5 to 2-times the cut
height. Piercing too low can cause molten metal to spatter on the nozzle and shield.
• Program Lead-in and Lead-out properly to avoid stretching the arc. If the Torch tries to arc
and it is not centered over the material the arc will cut into the sidewall of the nozzle and
damage it.
• Moving the Torch to the right results in the squarest cuts. The majority of swirl rings spin the
plasma stream clockwise. However, Torch cutting direction depends on the project and the
cut desired by the Operator.
• Ensure the consumables match the amperage set for the plasma cutting machine.
Kerf Width
Kerf is the width of the material that is removed during the plasma cutting process. The
Operator can adjust Kerf Width settings in Bend-Tech Dragon software in Tube Library >
Machine > Basic Settings > Kerf Width.
• Bend-Tech recommends setting Kerf Width at 0.06. However, for most accurate cutting, it
is recommended that the Operator make a test cut and measure the Kerf Width and adjust
the Kerf Width setting accordingly.
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