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Sunbelt Stud Welding

A 12 M (for nut/pad welding) - Stud Welding Gun

Stud Welding Gun - A 12 M

Description / Features


  • For welding of welding nuts of type Hex Nut
  • For welding on perforated and unperforated metal sheets
  • Especially suitable for workshop and assembly area


  • Rigid casing made of impact-resistant plastic
  • Zero-play ball linear bearing for guiding the welding piston
  • Sealed welding piston guidance
  • Integrated lift and spring-loaded adjustment


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


  • Reproducible piston movement with minimized rebound effect for optimum welding quality via lift damper
  • Automatic length compensation


Welding rangeMARC welding nuts type HexNut M6 to M12
Hexagon nuts DIN 934 M6 to M12
SC welding elements M5 to M10, dia. 5 to 8 mm / 3/16" to 3/8", dia. 3/16" to 5/16"
CD welding elements M5 to M10, dia. 5 to 8 mm / 3/16" to 3/8", dia. 3/16" to 5/16"
Wall thickness1 to 3 mm / 0.04" to 0.12" (other sheet thicknesses on request)
Welding element materialA2-50
Welding element typeMARC welding nut - type Hex Nut
Welding rateUp to 4 welding nuts/min. The maximum welding sequence is limited by a number of parameters.
Length compensation3 mm / 0.12", automatic
LiftAdjustment range 3 mm / 0.12", lockable
Spring pressureAdjustable, arresting
Welding cable5 m / 16.40'
IP CodeIP 20
Workplace noise levelUp to 90 dB (A) may occur during welding
Dimension LxWxH320 x 70 x 200 mm / 12.60" x 2.76" x 7.87" (without cable, with leg assembly)
Weight0.9 kg / 1.98 lbs (without cable)


Inverter Arc Stud Welder - IT 1002
IT 1002
M3 to M16 - #4 to 5/8"
All-rounder for construction sites and workshops (IP 23).
Precise results through advanced inverter technology.