Canaweld TIG AC/DC 281 Pulse

Save $2,638.78

Models: For Heavy-Duty Water-Cooled Torches
Sale price$2,638.78 Regular price$5,277.56


The TIG AC/DC 281 Pulse is an industrial, heavy-duty, powerful, portable, and versatile welding machine. The professional pulse features of the machine combined with its HF start, make it ideal for welders looking to perform high-quality TIG welds even on very thin materials with no distortion. The TIG AC/DC 281 Pulse welding machine is an inverter-based arc welding power source with advanced waveforms, and pulse controls making it the best professional choice for all industrial workshops.

The TIG AC/DC 281 Pulse welding machine offers excellent welding performance and various professional functions. A 5-inch color display with automatic controls makes the setup and operation quick and easy. Furthermore, All the features can be easily customized and saved in the available memory settings.


  • A 5-inch LCD screen allows both experienced and novice users to operate the device quickly and easily, ensuring correct setting and parameter selection, reducing parameter setting time, and increasing actual welding time.
  • Capability of TIG welding on aluminum and steel workpieces up to 3/8 inch (9.5 mm) of thickness with a maximum output of 280 amps.
  • AC Waveforms:
    1. Progressive square wave for increased torch speed, depth of penetration, and rapid cooling of weld pools
    2. Sine wave for simulating a conventional power source and reducing noise level
    3. Triangular wave for reducing the overall heat input and increasing the peak current to control the distortion of thin materials.
  • Up to 10 memory locations to store important weld parameters.
  • Adjustable soft welding start and minimal distortion on thinner materials.
  • Adjustable powerful start which is required for thicker materials.
  • Adjustable balance settings which provide full control to mix the cleaning and penetration sequences, during aluminum welding.
  • High frequency (HF) for perfect arc starts and stability
  • Tested in (104°F/40°C), designed for the toughest conditions.
  • Digital control of all welding parameters.
  • Amperage control is accessible by foot pedal.
  • Pulse TIG welding allows for better arc control and reduces work piece distortion.
  • Ideal for welding thin and thick materials.
  • Excellent welding characteristics in Stick mode with the most rods
  • Ability to use up to 165 feet (50 meters) leads without any power loss at the welding circuit.
  • Digital adjustment of pre-flow, initial amperage, welding amperage, initial slope, pulse parameters, final slope, and post flow on LCD screen.
  • Arc Force automatically selects the best welding arc dynamics (in Stick mode).
  • Ability to pre-set all welding parameters.
  • Fan cooled and thermally protected against overheating.
  • Ability to communicate with Canaweld auxiliary cooling systems
  • Metal face panel.
  • Generator compatible.
  • Comprehensive 3 Year Warranty.
  • Innovative wind tunnel


Process Unit TIG AC TIG DC Stick
Display Type 5 inch LCD
Input Voltage, Single Phase, 50/60 Hz V 208 to 240 (±10%)
Primary Current@Max Welding Current A 50.5 50
Maximum Primary Effective Current (I1 eff max) A 27.8 29
Welding Current Range A 5 – 280 5 – 225
Welding Current @ 30% Duty Cycle in 104°F (40°C) A 280 225
Welding Current @ 60% Duty Cycle in 104°F (40°C) A 230 160
Welding Current @ 100% Duty Cycle in in 104°F (40°C) A 180 140
Open Circuit Voltage V 72
Stick Parameters
Stick Modes AC and DC
Arc Force 0 – 10
Hot Start 0 – 10
TIG Parameters
TIG Process Types TIG HF , TIG Lift
TIG Process Modes Pulse, Stitch, Cold, No-Pulse
TIG Output Control 2T , 4T , Foot Pedal
Pre-flow sec. 0.05 – 5.0
Initial Amperage A 5 – 280
Initial Slope sec. 0.0 – 20.0
Peak Welding Amperage A 5 – 280
Final Slope sec. 0.0 – 20.0
Final Amperage A 5 – 280
Post flow sec. 0.1 – 25
TIG Pulse Parameters
Pulse Functions Pre Flow, Initial Amperage, Initial slope, Welding Amperage, Base Amperage, Pulse Duty Cycle, Pulse frequency, Final slope, Final Amperage, Post Flow
Base Amperage A 5 – 280
Pulses Frequency pps 0.5 – 999
Pulse Duty Cycle % 5 – 95
TIG AC Parameters
AC Waveshape Squarewave, Sine wave, Triangular wave
AC Controls Frequency , Balance
Balance % 50 – 75
Frequency Hz 50 – 250
TIG Sequence Control Parameters
ON Time( Stitch and Cold) sec. 0.1 – 10.0
OFF Time( Stitch and Cold) sec. 0.1 – 10.0
Maximum Material Thickness (TIG) 3/8 in. (9.5 mm)
Maximum Electrode Diameter (STICK) 3/16 in. (4.8 mm)
Minimum Power of Generator Kw 12.5
Torch Cooling Air / Water
Weight lb. (Kg) 40 lb. (18 kg)
Dimensions Including Handle (D, W, H) in. (mm) 23.6 x 8 x 15.7 inch (600 X 205 X 400 mm)

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