Hyspeed HT2000LHF Instruction Manual e-1
6
Appendix E
AIR FILTERS
Air Filters
Gas purity is critical for maximizing consumable parts life, as well as for producing the highest quality cutting which
Hypertherm plasma equipment can achieve. Plasma air must be clean, dry and oil-free, and air must be delivered
at the pressure and flow rate specified for each plasma system. If the air supply contains moisture, oil or dirt
particles, cut quality will be lowered and consumable parts life will be shortened, which increase production costs.
To optimize both consumables life and cut quality, Hypertherm recommends a three-stage filtering process for
compressor air for removing contaminants from the air supply.
1. The first stage of filtering should remove at least 99% of all particles and liquids 5 microns and larger in size.
2. The second stage should be a coalescing-type filter to remove oil. This filter should remove 99.99% of particles
0.025 micron and larger in size.
3. The third and final stage of filtration should be an activated carbon adsorbent filter that removes 99.999% of oil
or hydrocarbons that have not been trapped by the previous stages.
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