Product Announcement from ESAB Welding and Cutting Products


Smart Voltage Height Control-Image

The SVHC system utilizes ESAB's PB-MB-1 plasma torch station, and integrates capabilities from the arc-voltage sample & hold feature pioneered by ESAB in the 1990s, and the electrode wear detection system patented by ESAB in 1998. The torch station features pneumatically balanced tool-tip sensing, magnetic breakaway crash protection, and an encoder for accurate Z-axis position control. The Pneumatically Balanced Magnetic Breakaway torch holder allows accurate initial height sensing. It is combined with an electrical touch-sensor that also detects when the torch is in contact with the plate. This dual-sensor system provides the most accurate sensing of the plate surface, which is used as the reference for initial cutting height.

The SVHC system uses an encoder in the z-axis to precisely control the torch height for initial piercing and cutting height. Once the torch has fired and moved down to its cutting height, the arc voltage is electronically measured and digitized. The system then switches to arc voltage height control, and maintains that same voltage throughout the remainder of the cut.

By sampling and holding the voltage after every pierce, SVHC keeps the nozzle to plate distance constant throughout the life of the electrode. On a standard arc voltage control system, the torch will cut closer to the plate as the electrode wears. This changes the cut quality, and eventually causes torch crashes and premature consumable changes. SVHC maintains consistent cut quality even as the electrode wears by keeping the nozzle the same distance from the plate. This also allows the electrode to be fully used before change out.

Controlling the SVHC system is simplified with ESAB's Vision T5 touch-screen based CNC. This easy-to-learn controller features a built-in process database that simplifies plasma torch setup through a simple touch-screen process selector. It also integrates perfectly with ESAB's m3 plasma system, which features the most advanced gas control system in the industry. The operator simply selects the material type and thickness, and the Vision T5 CNC automatically selects and mixes the optimal start, cut and shield gas combination, then displays a picture and part number for the each of consumables that is needed.

SVHC is integrated tightly with the Vision T5, which gives the operator visual feedback from all of the peripheral devices. The Vision T5 displays the actual and measured arc voltage for each plasma station. It also shows the amount of arc voltage correction, giving the operator a visual indication of electrode wear so he can see when the consumables need to be changed. SVHC operation is simple and automatic, and requires no special operating procedures. Once enabled, SVHC automatically compensates for electrode wear without any intervention.

SVHC is available with all ESAB CNC plasma shape cutting machines equipped with ESAB's m3 Plasma™ systems. Power supplies are available featuring 200 Amps, 360 Amps, 450 Amps, or 600 Amps. Each of these rugged power supplies is capable of 100% duty cycle and features CNC controlled output current for improved starting and extended consumable life. Depending on the configuration, the system can pierce and cut mild steel up to 2" thick when using ESAB's XR Series Nozzles for the PT-36 torch.

Only ESAB offers fully integrated plasma cutting and process control, all operated through the Vision T5 CNC. As the technology leader in machine and process automation and the only total system supplier, ESAB is uniquely qualified to integrate the entire plasma cutting process. By integrating arc voltage height control, Z-axis motion control, and complete plasma process control, ESAB leads the way to higher productivity and lowest overall cost-per-part.

Learn more - view product online.

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In the market for a CNC Plasma Cutting Table? Find out what sets ESAB Cutting Systems apart from the competition. As the only total system supplier, ESAB provides completely integrated plasma cutting systems with the latest technology, such as Precision Hole Technology, Smart Voltage Height Control, and SmartCycle Technology. In the world of CNC plasma cutters, only ESAB can fully integrate the gantry, CNC, plasma system, height control, and nesting software.

View the ESAB Cutting 3-minute movie to learn more.

 
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