MMA/TIG Welding Machine -- TD-1200H

MMA/TIG Welding Machine -- TD-1200H

Thyristor based power sources are the basic type arc welding power source used for MMA/TIG applications. Current control is achieved through saturable core reactor. Very reliable power source but not recommended for radiographic welding application as there is no dependable feedback for maintaining the output current constant due to fluctuation of input supply or change in load. Power factor is poor for these power sources.

Special Features:

  • Hexa phase design, which produces excellent welding quality.
  • Most rugged design, suits dusty, dirty project site conditions.
  • Excellent for gouging of metal.


  • Heavy duty rugged machine.
  • Simple to use.
  • Very easy to maintain.

Technical Specifications of TD-1200H:

  • Input Supply : 380-440 V, 3 Phase
  • Frequency : 50 Hertz
  • Class of Insulation : 'H'
  • Primary Current @ Max. Rated (Single Operator) : 110 Amperes
  • Open Circuit Voltage : 75 – 85 Amperes
  • Output Current @ 60% Duty Cycle : 1200 Amperes
  • Output Current @ 100% Duty Cycle : 924 Amperes
  • Current Range : 100-1200 Amperes
  • Type of Cooling : Forced Air Cooled
  • Dimension (L X W X H) : 960 X 1010 X 1080 mm
  • Weight : 430 Kgs

Standard Scope of Supply:

  • Thyristorised based Welding Rectifier Model: TD1200 H – OCV 75-85 V, Current at 60% duty cycle 1200 amps.3 Phase is divided into 6 phase input supply to the primary of transformer and this produces better quality of output and stability of current reduces the size of input KVA of the machine and enhances the power factor and efficiency of the machine.

Optional Accessories –

  • Input cable.
  • TIG Accessories (HF Unit, Water Cooling Unit, Gas Cooled TIG Welding Torch, Water Cooled TIG Welding Torch).
  • Safety Wear – Shoes, Goggles.
  • Remote Control Unit.

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