Weld Controllers

The Mechelonic® welding controls state-of-the-art micro-processor-based controllers. Our controllers are Indian in design and compete with the best in the world. They are factory-calibrated, versatile, and are suited for Spot Welding, Projection Welding, Seam Welding, and Special Welding Machines involving PLC-based automation and/or PC-based Data-acquisition requirements. These controllers are “field-proven” and in-house developed for more than 40 years. Thousands of these controllers are in use in India and abroad.

Standard features

  • Deliver constant welding current
  • Voltage compensation
  • Sequential Timer with Alphanumeric display and touch key pad
  • Pulse
  • Closed-loop feedback mechanism
  • Programmable features to generate alarms or re-weld
  • Programmable by a variety of hand-held devices.
  • Program lock with password protection
  • Settable alarms for conformity
  • Easy fault-diagnosis
  • Weld Counter (9999 counts )
  • PC interface – RS 485
  • LED display
  • Built-in safeguards
  • Current-stepper schedules.
  • Interface port for networking and linking with PC and weld-server systems is optional
  • Facility to set weld-time
  • Output current tolerance limit alarm ( +/- 10 % )
  • Additional digital inputs ( Alarm reset, counter reset )
  • Additional digital outputs ( Alarm output, counter end, Forge delay valve )
  • Designed and developed in India.


  • Single-phase AC types 1KVA-600KVA
  • Three Phase 50 hz 400 volts for 50KVA-1000KVA
  • Mid-Frequency (1000hz) upto 500KVA


Application assistance and quality management is offered as per standards of AWS (USA)


Mechelonic Welders Private Limited supplies Mid frequency Inverters for Resistance Welding machines. We make Inverters of various capacities suitable for resistance welding machines which are available in 3 phase for balanced power.