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The OW-ARC 450 digital GTAW (TIG) welding power source consists of an inverter power supply, remote control pendant, integrated water cooling system and gas bottle rack on a portable chassis.  The system utilizes a state-of-the-art PC controller with 40” touch screen and is designed for medium to thick wall pipe and tubing.  It offers easy programming and versatility to tackle the most demanding piping applications for power generation, petrochemical, marine and aerospace industries.

OW-ARC 450 Power Unit



• PC based with Windows 7

• Up to 20 levels of parameter control (sector/levels) per welding program

• Stores 200 welding programs in internal memory

• Parameter controls for welding current, travel speed, wire speed,       
  shielding gas and AVC / OSC control

• Arc voltage tracking control for peak and or base value tracking
  or simultaneous tracking

• Welding heads available for autogenous (fusion) / wire feed applications

• Control pendant display for real-time weld monitoring

• Oscillation controls - width, speed and center position are adjustable during 
  the welding process

• High frequency or touch start arc ignition

• Built in integrated water cooling system

• Comprehensive fault detection and message display for easy 
  maintenance and on-line help

• Option to choose offline programming with offline printing

• Onboard “Help” menu

• Internal storage for 999 weld schedules

• “Next pass” feature to support multipass welds

• Internet connectivity for software update and multi program import/export to USB

OW-ARC 450  
Type  Inverter
Current  5- 400A
Duty Cycle  (40C) 380A 100% / 400A 60%
Open Circuit Voltage 72V
Welding Voltage 10.2V-30V
Efficiency 50Hz
Input Voltage 3×380V (3x415V, 3x460V) (-15%~+15%)
Max. Power  35KVA
Insulation / Projection level F/IP21S
Temp. Environment -10℃~+40℃
Temp. of Trans. and Storage -25℃~+55℃
Pump lift 30m/0.3Pa
Torch Cooling Integrated water circuit
Display  Industrial PC
Program Storage 200
Number of Levels (per program) 20
Insulation / Protection Class  F/IP21
Water Tank Capacity  15L  /  4 Gallons
Weight (ex. Coolant) kg /lbs 135kg  /  297lbs
Dimension mm (inches) 1110mm x 545mm x 1120mm (43.7" x 21.45" x 44")
Functions Gas control, current control, rotation control, 
  wire feeding, oscillation and Arc voltage control
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