V 50 RoboTIG
HeavyDuty TIG automation
  • Operation concept: V Standard
  • 3 - 500 A
  • "AC: ED 60% at 40°C: 500 A DC: ED 60% at 40°C: 500 A"
  • DC and AC/DC versions available

High-performance TIG.

Outstanding TIG technology and tried and tested inverter technology, protected in a robust industrial housing, optimise practicality and productivity in automated welding.

TIG cold wire with the RF05 CWT.

The optional RF-05 CWT robot feeder is compact, weight-optimised, powerful, and offers best insulation to ensure outstanding TIG quality for cold-wire welding as well as high speed with two different wire feed speed options.

Up to 100 welding tasks.

Complete recurring tasks quickly and efficiently! The Tiptronic job function saves and recalls the parameters for up to 100 welding tasks.

Perfect results in thin sheets.

The integrated pulse and fast pulse function at up to 20 kHz is particularly suitable for welding thin welding sheets. It permits outstanding weld pool control for perfect results even at difficult tasks.

Robust industrial housing.

The fully resilient industrial metal housing is extremely robust while its aerodynamic bulkhead keeps dust and dirt out of the system and makes it ideal for any outdoor use. The sturdy handles allow for suspension from a crane and can prevent potential tripping hazards by winding the welding cables. Combined with the double gas cylinder safety device, this warrants safety at all times.

Energy efficiency at full power.

The integrated stand-by function ensures turns individual components on and off automatically. The Thermocontrol sensors monitor system temperature and control the fan as required to save energy and reduce fan noise as well as the amount of dust entering the device.

Optimal parameters with the SmartBase.

SmartBase technology guarantees a perfect arc matching your chosen electrode diameter with the welding parameters, ignition, and working range automatically adjusted. The arc can be fine-tuned individually to offer optimum welding results.

Country-specific product variants.

Country-specific product variants are available for this Lorch welding unit. These may differ in the mains supply, the mains plug or other product features required for the country. You want to know more? Contact your local Lorch partner.

Technical data

TIG welding
Welding range 3~ 400 V: [A] 3 - 500
TIG Duty cycle AC 400 V
Duty cycle AC 100% (40°c): [A] 380
Duty cycle AC 60% (40°c): [A] 500
Duty cycle AC at max. current (40°c): [%] 60
TIG Duty cycle DC 400 V
Duty cycle DC 100% (40°c): [A] 380
Duty cycle DC 60% (40°c): [A] 500
Duty cycle DC at max. current (40°c): [%] 60
Electrode welding
Welding range 400 V: [A] 20 - 400
Weldable electrodes: [Ø in mm] 1.5 - 6
Electrode duty cycle
Duty cycle at max. current (40°c): [%] 80
Process-independent data
Open circuit voltage: [V] 45 - 88
Mains 400 V
Mains voltage 3~ (50/60 Hz): [V] 400
Mains fuse 3~ (50/60 Hz): [A] 32
Positive mains tolerance 3~ (50/60 Hz): [%] 15
Negative mains tolerance 3~ (50/60 Hz): [%] 15
Mains plug
Mains plug: CEE 32
Standards and approvals
Protection class: IP23S
Insulation class: F
Norm/Standard: EN 60974-01
Designation/Certification: CE, S
Cooling type
Cooling type: Gas-cooled , Water-cooled
Standard cooling capacity (l/min): [kW] 1.1
Tank capacity: [l] 4.3
Dimensions length x width x height
Dimensions (LxWxH) [mm] 1,130 × 450 × 860
Weight: [kg] 123.2
Weight, water cooling (filled): [kg] 14.7


  • “3 steps and weld” operating concept
  • Simple one-button operation
  • Stepless current adjustment
  • Digital Volt-Amperage-display
  • OLED graphic display with language selection
  • User-focused operator guidance with illuminated symbols and welding sequence control
  • Tiptronic job memory for 100 welding tasks


You would like to learn more? Technical data as well as details on application and equipment can be found here:

Always the best advice: close, personal and honest.

You are interested in a Lorch welding machine but you are not sure which model is the right one for you or you have other questions? Use our Partner Finder to easily find a competent contact person near you and get personal advice.