Heavy Duty Smaw / MMA / Stick Welders


Weldman ‘H’ series inverter power sources deliver constant current (CC) DC power. This is achieved using energy efficient IGBT inverter technology. These machines render smooth and stable arc for Stick / MMA welding with various types of electrodes. The machines are designed and built with careful layout of power components and cooling arrangement. Hence, heavy duty welding at higher current is achieved.


Stick welding   >   Scratch start TIG welding   >   HF start TIG welding (with optional modification kit and HF TIG control unit)   >   Gouging


  • Light weight, compact and yet reliable.
  • Designed and built to operate under harshest environment and meets the requirement of quality welding in shipyards, pipelines, construction, petro-chemical plants, oil refinery, offshore works and workshop.
  • Generator friendly (low kVA requirement).
  • Ease of maintenance.
  • Welder friendly controls.
  • Digital display for easy current setting.
  • Step-less current control.
  • Arc force adjustment to minimize the electrode sticking to the weld puddle.
  • Built-in hot start for additional current during arc striking (can be adjusted by preset potentiometer in PCB).
  • Suitable for voltage sensing (OCV driven) wire feeder.
  • MCB for fault protection.
  • Under voltage and Overload protection.
  • Current limit.
  • Control circuit protection by fuse.

Optional Items

(Require necessary modification in power source)

Remote Current / Volt control unit: WER101
HF TIG control unit: WERT301


Input Supply Voltage 415V + 10%, 3-Ph, 50/60Hz
Rated Input 12.2kVA 18.0kVA 25.1kVA
Idling Input Current 0.25A (Max.)
Maximum OCV (CC) 60V DC
Current Range (CC) 10A – 300A 10A – 400A 10A – 500A
Rated Duty cycle @ 70% 300A / 32V 400A / 36V 500A / 40V
Rated Duty cycle @ 100% 250A / 30V 330A / 33.2V 420A / 36.8V
Dimension (L x W x H) 490 x 260 x 380 mm 490 x 270 x 440 mm
Weight 36kg 41.2kg

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