Introducing the Automatic Torch Height Controller for CrossFire PRO.


  • Fully Integrated - The new LS-THC system is fully integrated into our FireControl software for monitoring live voltage, updating settings, and real-time activity feedback.
  • Voltage Input Module - Each THC kit includes a separate Voltage Input Module (VIM) for hooking up to either a plasma cutter CNC port or directly to raw plasma terminals for maximum compatibility.
  • SMARTVoltage - The SMARTVoltage feature in FireControl was designed to take the guesswork out of cutting with a THC system by automatically sensing the arc voltage at the height set by the Initial Height Sensing (IHS) system and using this voltage as the nominal voltage for that cut loop.
  • Torch Speed Cutoff Setting - This setting prevents the torch from plunging into your material when cutting by monitoring the live torch speed and disabling THC when the speed drops below a threshold percentage.
  • Fully Configurable - The THC settings menu can be accessed directly from FireControl for tuning parameters for optimal performance.
  • Upgradable - The THC unit was designed so that your CrossFIre PRO machine can be upgraded to run with the THC system at any time by purchasing the THC module and plugging into the Motion Control Board inside the electronics enclosure.

Whats Included

  • Langmuir Systems THC Electronics Module - Quantity 1
  • Voltage Input Module (VIM) - Quantity 1
  • Raw Voltage Pigtail Cables - CATIII 1000V (Black & Red): Quantity 1 Pair
  • Divided Voltage Input Pigtail Cable - Quantity 1
  • Output Voltage Cable - Shielded: Quantity 1
  • Velcro Tape - Quantity 1 Pair