hbs it 1002

HBS-IT-1002 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)
  • Welding with shielding gas (series)
  • Automation (optional)
  • Process sequence control (optional)

Technical Data

Gas/Automation/Process control Series/Option/Option
Welding range #4 to 5/8”, dia. 14 ga to 9/16” (M3 to MR16, dia. 2 to 14 mm)
Welding material Mild steel, stainless steel, aluminum
Welding rate 1/2″ (M12) = 25 studs/min
Welding current 1,000 A (max.)
Current adjustment range Stud welding 100 to 1,000 A, electrode 50 to 400 A (stepless)
Welding time 5 to 1,000 msec (stepless)
Primary power 480/460 V, 3 phases, 50/60 Hz, 35 AT (alternative input voltages available)
Connected Load 50 KVA (with 400 V mains), 40 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 26″ x 11″ x 13.4″ (660 x 280 x 340 mm) without handle
Weight 63.9 lbs (29 kg)
Order No. 93-66-1202 (Gas)93-66-1204 (Gas/Automation)93-66-1206 (Gas/Automation/Process control)



  • 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
  • Display of error codes – on digital display
  • Lift test – for gap welding guns and 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
  • Process monitoring – recording and analysis of factors affecting the welding process; after each weld, the reference
    and actual values are compared; display of the welding energy input; switchable automatic welding stop if limits are
  • RS232 interface – for data output; data and time of day are stored; welding parameters of each weld are logged (only for version gas/automation/process control)


  • 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, automation, and process
    monitoring possible; digital display of current, welding, and gas-preflow time (optional: pneumatic feed time for
    automation); separate settings for welding current and welding time
  • Powerful – built-in power reserves
  • Trouble-free changing of welding voltage polarity possible by reconnecting 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 welding process
  • 2 in 1 – switchable from drawn-arc ignition to electrode welding

Suitable stud welding guns

  • A 12, A 16, AI 06
  • CA 08
  • PAH-1 (only suitable for automatic version)
  • KAH 412, KAH 412 LA (only suitable for automatic version)


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