Longevity FORCECUT 50D - Manual (Page 24)

ForceCut 40D and 50D plasma cutters
Page 23 of 30
www.longevity-inc.com
the intended use) with your LONGEVITY Plasma Cutter before
you get started. Use this rehearsal just to be sure you have correctly
calibrated all the settings to work as desired. If you are going to be
cutting for a large piece of metal, it can sometimes be difficult for
even the most experienced metal worker to cleanly stop and start.
We recommend you use the sample cut to thoroughly rehearse the
intended cut with your LONGEVITY Plasma Cutter.
LONGEVITY Plasma Cutter Tips
In order to successfully execute a clean cut with your LONGEVITY Plasma
Cutter you must consider a combination of elements involved in the cutting
process:
The tip of your torch is designed to focus the plasma stream to the
work piece in accordance with the appropriate setting (see owner's
manual). Trying to use a 80-amp torch tip at a 40-amp setting will
not focus the energy of your torch accurately and thus lead to a
wider kerf. And the opposite scenario of using an 80-amp setting
with a 40-amp tip will abuse your torch tip and require it to be
replaced sooner than intended.
When cutting a thicker material with your LONGEVITY Plasma
Cutter it is important to use a torch tip designed for a higher-amp
output. Higher-amp tips have a larger opening than lower-amp tips.
Attempting to use a 40-amp tip to cut thick metal with a higher-
amp output will distort your 40-amp tip meaning it will need to be
replaced.
Each LONGEVITY Plasma Cutter, both Pilot Arc and High
Frequency, allow you to cut different metals at different speeds.
For example to achieve a quality cut of 1/2in. thick steel with the
LONGEVITY Force Cut LP-40D Pilot Arc your speed will be
roughly 7 inches per minute. Where as the LONGEVITY Force
Cut LP-80D will cut 1.25in. thick steel at the same rate.
Use extended tips on your LONGEVITY Plasma Cutter for tough
to reach corners, tracing a pattern, or areas with tight spaces.
Pilot Arc technology allows you to ignite the arc without the tip
touching the metal. Use a torch guide or tip shield to protect your
consumable. The more often you drag your torch tip across the
material or stop and restart the Pilot Arc, the shorter the life span of
your consumables will be.
Using a torch guide or tip shield is a great way to protect the
consumables of your LONGEVITY Plasma Cutter. Remember to