The 130xd uses F5 (95%nitrogen, 5% hydrogen) as the plasma gas and nitrogen as the shiled gas to cut stainless in the thickness range between 24 ga and 3/16". This gas mixture provides a clean, dross free, weldable edge on Stainless, althought there is a bit of a taper on the edge...typical with any plasma cut on stainless. The edged is very shiney, very smooth.
For cutting carbon steel the HPR130xd uses oxygen as the plasma gas and compressed air as the shield, producing a very clean square edge with minimal hardness from 24 gauge to 3/4", the 130 amp system can pier ce and cut up to 1" on steel as well.
Cut quality is dependant on the plasma system and process used, but also relies on good motion control ability as well as a good height control with accurate pierce height as well as real time cut height. Putting one of these high definition class plasma systems on a machine that has less than exceptional acceleration and following error, or has mechanical flex or backlash, will not dramatically improve cutting capability over a lesser plasma system.
What type of cutting machine and torch height control system are you currently using?
The HPR130xd (and the 260xd and 400xd) also have some newly released hole cutting capability called "TrueHole" that allows (when coupled with an approved, licensed cnc control, MTC Pronest 2010 CAM software, and a good quality THC and cutting machine) very high quality holes that rival drilled holes...virtually no taper, no ding or divot. This TrueHole technology was the result of a 3 year engineering project in Hypertherm's labs that uses the CAM nesting software to take full control of all of the cutting machine components, automatically setting parameters for each plate thickness, hole diameter and process level, as well as automatically adjusting lead in, lead out, and plasma and THC timing issues to dramatically improve plasma cut holes on plate from gauge to 1" thick.
Link to True Hole info: https://www.hypertherm.com/library/f.../SB_870820.pdf