Inverter spot welder MULTISPOT MI-100, MX-3900

3 x 400 V CE STANDARD, cable pliers, power supply (mobile), linear balancer, extraction tool, service box

Category: Approvals: , , , , MPN: 515950

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Spot-welding of structural body damage, specially designed for high-strength steel like boron, TWIP, TRIP, USIBOR, XIP.

  1. Easy operation by intelligent control technology with the aim of reproducing the production spot welds as reliable and process-safe as possible. Uncomplicated and intuitive user interface.
  2. Investment return through a modular “system MULTISPOT”, long-term return for the investment in the workshop. Existing tools with central connection can be used in the future. Easy upgrade to MI-100control possible.
  3. Effective repair welding by “typical MULTISPOT” simple operation concept, thus efficient work and short training period.


  • MULTISPOT central connection.
  • Perfect welding results.
  • The current is readjusted automatically, with the result of spot welds of uniform high quality – from the first to the last!
  • No performance drop with primer and rust.
  • Quick tool change.
  • The respective tool is recognized automatically (also already existing tools from the ‘system MULTISPOT’).
  • Presetting of the welding parameters.
  • Only the tool required for the specific task is connected.

Scope of delivery:

  • Power supply (mobile)
  • Balancer
  • Welding gun
  • Extraction tool
  • Service box, equipped


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Tech Data

FeaturesInverter spot welder MULTISPOT MI-100, MX-3900Inverter spot welder MULTISPOT MI-100, MX-3900Inverter spot welder MULTISPOT MI-100control T, MTC-6000Inverter spot welder MULTISPOT MI-100control T, MTC-6000
Nominal machine power at 50% ED60kVA30kVA
Welding current9kA14kA
Maximum welding current12kA--
Idle voltage23V16V
Protection class21IP21IP
Electrode surface pressure390daN600daN
Max. operating temperature40°C40°C
Cable length2,5m5m
Pliers weight (with cable)9,5kg9,7kg
Power supply400 V | 50 - 60 Hz230 V | 50 - 60 Hz
Fuse protection32A slow-blow63A slow-blow
Connection power42kVA21kVA
Supply lead4 x 16mm²4 x 6mm²