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Torch Height Controller

Accurate control of Torch to work distance be it Cutting of Welding, plays very important role for the quality of the end result of the process.

Torch Height Controller (THC) also know as Arc Voltage Controller (AVC) is the device which maintains the arc gap between the torch & the work piece.

Stepper motor driven vertical slide with motor driver & the controller allows the torch to move up or down depending upon the parameters set.

Arc voltage which acts as a Feedback to the controller as reference voltage, allows operator to set the Torch to Job gap as per the process & the quality requirement.

Arcraft Plasma has introduced Digital model DigiTHC100

Features of the DigiTHC100 are..........

  • Suitable for welding processes like TIG, Plasma welding, PTA or Powder plasma welding.
  • Suitable for Plasma Arc cutting.
  • Wide range of Arc voltage acceptability.
  • Well protected from the High Frequency interference.
  • Piercing program for plasma cutting.
  • Programmability in terms of Arc Voltage or Arc Gap distance.
  • Independently adaptable to any Plasma cutting or Welding power source
  • Independently adaptable to CNC profile cutting machine.
  • Independently adaptable to Welding Automation.
  • Initial Height Sensing (IHS) comes in handy to pre-adjust the required gap before start of process.

Advantages of DigiTHC100

Plasma Cutting

  • Improvement in cut quality
  • Improvement in consumable life upto 20%
  • High productivity at high dimensional accuracy of cut components.
  • Elimination of near collision condition of Torch & job.


  • Uniformity of weld beads
  • Controlled weld heat input eliminates chances of higher percentage of dilution, lack of penetration, undercut etc.
  • Easy adjustment of weld pool fluidity depending upon the application of weld & welding process by maintaining the
  • constant gap & hence the heat input.
  • Dramatic improvement in weld aesthetics.
220Vac / 50-60Hz / 450 watts
Stepper / 24 Vdc-6.3 amps
Max. Vertical Stroke
200mm / 8 inches
Max. AVC working stroke
100mm / 4 inches
  10 – 100 Vdc
  Arc Voltage range – Welding
50 – 250 Vdc
  Min. sensitivity of travel
0.5 mm / 0.02 inch
Min. sensitivity of voltage
± 0.5 Vdc
Welding application
TIG, Plasma, PTA
Cutting application
Air / Nitrogen plasma
Adjustable sensitivity
Initial Height Sensing
Pay load capacity
4.5 kgs / 10 lbs

Welding Automation Equipments

Plasma Cutting Machines

For precision cutting of Stainless steel, Aluminium and all other Ferrous and Non-ferrous metals.
Stainless Steel cutting upto 150 mm thick plates.

PTA Hardfacing & Cladding

(PTA) for Hardfacing / Cladding / Reclamation & Protection of Mechanical parts.

Welding Automation

Increase Productivity and    Capacity
Repeatable high quality    welds
Enhance Quality
Custom made solutions

Plasma Welding

Less sensitivity to changes in  
 Arc length.

Micro Plasma Welding Machines

 Precision welding of     minature    
 Controlled Arc at low currents
 Automated welding at low
 With built-in Pilot arcing     system.

Micro TIG Welding Machines

 Precision welding of     minature parts
 Ideal for smaller repair or
    Assembly work.
 Built-in high frequency     ignition.

Welding Inverters

Light weight & compact : 80% less weight compared to conventional machines.

Arcraft Plasma Equipments (India) Pvt. Ltd. Manufacturers Suppliers and Exporter of
Plasma Welding, Plasma Transferred Arc Welding (PTA), Plasma Cutting Machine, Micro Plasma Welding Machine, Micro Tig Welding Machine, Hard Bander, welding inverter, welding automation, hard banding machine, welding positioners, welding Oscillator mumbai, india. manufacturers, suppliers and Exporter of AC Welding Machines, Mig welding Machines, Shape Cutting Machines, Special Purpose Machines for hardfacing and cladding. mumbai. india.

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