Next Generation Plasma Cutting Systems

 
Using Hypertherm XPR™ plasma cutting technology, SEFA’s material processing capabilities offer exceptional edge quality, cutting tolerance, and repeatability that goes beyond high-definition plasma.

Using Hypertherm XPR™ plasma cutting technology, SEFA’s material processing capabilities offer exceptional edge quality, cutting tolerance, and repeatability that goes beyond high-definition plasma.

Today’s next-generation plasma cutting technology is automated and controlled, cost-efficient, precise, and (finally!) delivers edges that require little to no finishing work. Robust software and hardware set optimum cutting parameters based on material type and thickness. The software also converts drawings to thousands of x/y coordinates. Like a dot-to-dot, the machine connects these points as it cuts a shape. A straight cut requires just two sets of coordinates. Curves require more. The smoother the curve, the more points required. A traditional plasma might plot 2,400 points for a curve compared to 20,000+ points with a next-generation plasma. Going beyond traditional and high-definition plasma for quality cuts on stainless steel, carbon steel, and aluminum, next-generation plasma is also a cost-effective alternative for projects that might have otherwise been cut using laser.

In order to keep up with computing speeds, equipment gear tolerances have become very precise, in the range of 0.002 inch. Also, rack and pinion drives coupled with the latest DC motors allow for immediate startup, precision change in direction, and immediate torque. The result is a software-machine combo that computes thousands of points, cuts 200-300 inches per minute, slows a millisecond before a turn to avoid under or over traveling, and offers controlled acceleration and deceleration for smoother curves. Improved processing power and high-frequency starting turns the plasma arc on and off at exactly the right time to control torch travel. Better arc and machine control improve edge quality. Higher travel speeds plus water quenching for stainless steel minimize edge tempering and sensitization of heat-affected zones.

These software and hardware improvements benefit projects in several ways:

  • Sharper, cleaner, and straighter edges

  • Faster processing with reduced slag and dross (solidified metal) formation

  • Better part fitment, thanks to reduced edge angularity and notching

  • Excellent edge condition on stainless steel using water-injection

  • Minimal hole taper and better top and bottom-level roundness for excellent “bolt hole” results

  • Optimal cut parameters using multiple gas configurations

  • Better material utilization depending on table size

The SEFA team is excited to share this capability with our customers! Contact us if you would like to schedule a visit to our campus in Gaston to see our next generation plasma cutter in action.

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