Automatic Stud Welding Head with length compensation

for CD or ARC stud welding with automatic stud feeding
according to current standards




  • Especially suitable for thin sheets (at least 0.5 mm)
  • Automatic compensation of length tolerance of welding elements and height tolerance of the work piece through
    integrated length adjustment


Process variants


  • Gap welding
  • Short cycle drawn arc welding
  • Drawn arc welding (optional)


Technical Data


Welding range #4 to 5/16”, dia. #4 to 5/16” (M3 to M8, dia. 3 to 8 mm); dia. 3/8” to 1/2” (dia. 10 to 12.7 mm) with modification only
Stud length 0.31″ to 1.57″ (8 to 40 mm) other lengths on request
Stud material Mild steel, stainless steel, aluminum, brass
Total stroke of piston 0.28″
Stroke/Length compensation 0.2″/0.08″, 0.16″/0.12″
Spring pressure Arresting
Insulation class IP 20
Workplace noise level > 90 dB (A) may occur during welding
Operational and storage conditions According to current standards
Dimension L x W x H 14.76″ x 2.60″ x 5.71″ (375 x 66 x 145 mm) with chuck and quick change system
Weight 7.50 lbs (3.4 kg)
Order No. 94-37-412 (with length compensation)






  • Rigid casing made of metal
  • Torsion-resistant aluminum-casing to accommodate all function elements and accessories
  • Zero-play ball linear bearing for guiding the welding piston, to ensure maximum precision and reproducibility for welds
  • Sealed welding piston guidance
  • Compact dimensions
  • Integrated lift and spring-loaded adjustment
  • Stud length is freely adjustable (up to 40 mm; other lengths available on request)
  • Infinitely adjustable spring-loaded adjustment can be read off the scale directly
  • Prisma clamping system for fast exchange of the complete stud welding head
  • Pushbutton detent system to facilitate changing the feeding tube
  • Mechanical structure tested in production
  • Electronically controlled




  • Lock-in spring adjustment
  • Lock-in lift adjustment
  • High level of security to prevent the selected settings being changed inadvertently
  • Guidance system protected against spatters




  • Individual adjustment options for optimum welding results
  • Welding on painted sheets possible (clean, smooth and flat surfaces and grounding required)
  • Possible to match with special welding elements
  • Manual or fully automatic stud feed possible (welding element is automatically pushed through the feed tube in the chuck)
  • Automatic length compensation