Automatic Torch Height Controller for Crossfire PRO

Regular price $400.00

Automatically maintain optimal torch height above your material while cutting.

The LS-THC Automatic Torch Height Controller is available as an add-on purchase for CrossFire PRO CNC machines only. CrossFire CNC machines will need to purchase the appropriate full Z-Axis Upgrade which includes the LS-THC Module.

More information on LS-THC is available on the LS-THC product information page.

The LS-THC User guide exists to walk through assembly, wiring, and other troubleshooting regarding the LS-THC unit.


  • 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.

  • SMARTVoltage

    The SMARTVoltage feature 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.

  • Fully Configurable

    The THC settings menu can be accessed directly from FireControl for tuning parameters for optimal performance.

  • 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.

  • Upgradable

    The THC unit was designed so that your Gen2 CrossFire or 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.

  • 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.