The torch used on the Powermax 30 is a completely new torch design, and provides superior cut quality, cut power, and consumable life using a new nozzle design called "conical flow technology".the Miller does not have this capability. The Miller torch is similar to the torch Hypertherm used to provide with its older generation Powermax38.which interestingly was built by Miller! The Miller unit is built in Millers plant in Wisconsin, however the torch is built for them by Hypertherm. The Hypertherm Powermax30 is totaly designed and built by Hypertherm in Hanover, NH, USA by employee / owners of the company. I have used other plasma systems on my home cnc machine.but since the 45 came out I will only use that system due to the dramatic improvement in cut quality and consumable life. I happen to have worked for Hypertherm for 32 years.and have a home hobby metal shop with plasma, mig, tig (Hobart) (I can't afford one of our high definition class plasmas!). We focus on offering cut quality, consumable life and accuracy data for these machines.while the air plasma systems.95+% of which are used by hand.are more focused on reliability, safety, ease of use.as while as competitive pricing. These are expensive plasma systems.but for companies that have high accuracy and productivity needs.they are less expensive to operate than air plasma systems. These systems are highly productive, and have cut quality traceable to ISO9013 cut edge angularity standards. Hypertherm has a whole separate line of industrial mechanized plasma cutting equipment including high definition class plasma. The 45 uses new torch technology called "conical flow".which uses a specially shaped orifice in conjuction with an interaction with the shiled gas flow to increase arc energy density.as well as providing for better nozzle cooling and dramatic improvement in orifice life. Most air plasma systems produce a widely varying edge angle around the perimeter of the part.this change in angularity affects hole quality as well. The thing that makes the Powermax 45 stand head and shoulders above its competitors.is the uniformity of cut edge angularity. No dross on this cut.Įdge squareness could be improved by cutting slower.on both parts.however I would expect a bit of low speed dross (easy to remove). Edge quality is nice.has a taper of approx 5 degrees, uniform all the way around. This was cut at book specs for optimal speed, which is 140 ipm. 038".actual dimensions of square are 3.502 x 3.519. ![]() ![]() There was virtually no dross except for a few beads in the corners.kerf width was set at. Here are pics of a 3.5" x 3.5" square cut from 3/8" steel with a Powermax 45 at 33 inches per minute (recommended optimum speed).edge quality is very nice, edges are marked with angularity measured with a precision protractor (Mitutoyo). Powermax45 edge angularity and kerf width
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