OPTIMARC^®AC/DC 700 HDP is maximum 700A GTAW welding machine designed with the latest inverter IGBT and specialized parallel synergic
technology. It comes with two parallelled OPTIMARC^®AC/DC 350-TP and other necessary assemblies, which make it to be capable of dual output current type: DC 700A 40% duty cycle and AC 600A 60% duty cycle.

Targeting for specialized heavy industrial welding application. OPTIMARC^®AC/DC 700 HDP show full range professional performances:
-Output: DC, AC Square, AC Sine and AC Triangular
-Multi-process: Stick, Touch start TIG, High-Frequency start TIG and spot
-Trigger mode: 2 step, 4 step and spot
-Build-in: CC, pulse and high-frequency pulse
-Wave control: AC balance and offset setup, upslope or downslope current control, preflow and postflow time control
-User memories: memory save and recall.

Procedures pre-set on any one of two OPTIMARC^®AC/DC 350-TP will synchronize to the other. Users can set 300A welding current on one machine and get 600A output totally, which simplify setting-up actions.

• Lincoln Electric global advanced inverter technology to ensure the desired welding performance
• High current output: DC 700A 40% duty cycle, AC 600A 60% duty cycle, more suitable for continuous welding of thin plates or thick aluminum plates
• 7-inch full-color high-contrast LCD screen, user-friendly icon control panel
• Wider output current range 8-700A
• Start current can be up to 200% of welding current for bead profile consistency
• DC pulse range 0.2-2000Hz delivers stable and focused arc performance
• Parameter memory of 10 slots convenient to on-site operation
• Complete parameter preset function, implement programmatic work
• Comply with Lincoln Electric global design standard. Robust outer casing is applicable to even harsh working environment
• Fan-as-needed
• Analog interface is available with specific model