hbs it 3002 

HBS-IT-3002 Stud Welding Unit

ARC stud welding according to current standards.


  • Especially suitable for thicker sheets of about 2 mm or higher
  • Especially suitable for welding concrete anchors/shear connectors for job site applications
  • Suitable for through-deck welding

Process variants

  • Short cycle drawn arc welding
  • Drawn arc welding


  • Welding with ceramic ferrule (series)

Technical Data

Gas Option
Welding range #4 to 1”, dia. 14 ga to 1” (M3 to M24, dia. 2 to 25 mm)
Welding material Mild steel, stainless steel, aluminum
Welding rate Dia. 1” = 6 studs/min (dia. 25 mm = 6 studs/min)Through deck welding 3/4″ = 12 studs/min (300 feet, AWG 4/0)Industrial application 3/4″ = 14 to 15 studs/min
Welding current 2,600 A (max.)
Current adjustment range 300 to 2,600 A (stepless)
Welding time 5 to 1,500 msec (stepless)
Primary power 480/460 V, 3 phases, 50/60 Hz, 125 AT (alternative input voltages available)
Connected Load 150 KVA (with 400 V mains), 120 kw
Cooling Type F (temperature-controlled cooling fan)
Protection class IP 23
Operational and storage conditions According to current standards
Dimension L x W x H 25.6” x 22” x 50.8” (650 x 560 x 1,290 mm) without handle
Weight 352.7 lbs (160 kg)
Order No. 93-66-3211 (1 Gun connection)



  • Microcontroller – for precise process times, optimal functional reliability and maximum operating convenience
  • Function monitoring – automatic function test following power-up; monitoring of all internal system functions
  • Lift test – for gap welding guns and stud welding heads
  • Library function – automatic specification of welding current and welding time through selection of stud diameter
    according to welding range (with and without shielded gas); fine adjustment via arrow keys


  • Extremely easy to operate
  • Compact
  • Mobile – highly mobile thanks to compact dimensions and low weight (50% weight savings vis-à-vis conventional stud welding units)
  • Robust – metal housing withstands rough treatment in-shop and on-site


  • With integrated mains filter (protection against voltage peaks)
  • Optimal for construction sites with large mains voltage fluctuations – use even with critical voltage supply (- 10% + 10%)
  • EMC test
  • High-voltage test with log
  • Retriggering lock-out – prevents welding on a welding element that has already been set
  • Thermal monitoring of transformer – automatic shutdown in case of overheating
  • Temperature-regulated ventilator – reduces noise and dust in the stud welding unit (greater system reliability)
  • Control unit galvanically separated from welding lines – high degree of functional safety
  • Optimal protection against external interferences
  • Protection class IP 23
  • Also permits operation outdoors


  • Display – infinitely adjustable power setting; easy monitoring of all functions via LED displays; easy operation via
    membrane keyboard and digital display; setting of welding parameters, programs, shielding gas (optional); digital display
    of current, welding, and gas-preflow time; separate settings for welding current and welding time
  • Powerful – built-in power reserves
  • Trouble-free changing of welding voltage polarity is possible by reconnecting the welding current and ground cables
  • Outstanding welding quality – very high arc stability even at weak welding currents
  • High process flexibility – high clock frequency (30 kHz) of stud welding unit allows highly dynamic regulation of the welding process

Suitable stud welding guns

  • A 12
  • A 16
  • A 22
  • A 25
  • AI 06


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