OTC Daihen

Arxis wb-P503L

Enhance Your Welding Performance In Manual and Automated Applications.

Highest performance for the welding of steel, stainless steel and aluminium.

OTC Daihen’s top-of-the-line ARXIS model, powered by the latest Welbee chipset generation, is engineered for professionals who demand the highest standards in welding performance. This is a high-end manual welding power source, not an entry-level MIG welder. If you want robot-quality welds without the robot, the ARXIS is the closest you’ll get. With an exceptional combination of high welding speeds and maximum efficiency, the ARXIS model is ideal for those who need the best in welding equipment, whether working manually or with robotic automation on complex projects.

OTC Daihen developed the revolutionary Welbee welding control chip, offering significantly enhanced welding performance and advanced IT functionalities. Welbee provides precise waveform control by accurately feeding back ultra high-speed sampled welding current and voltage, resulting in high-precision and superior-quality welds. Overall, Welbee marks a breakthrough in welding technology, delivering unparalleled accuracy, efficiency, and is ECO Design ready.

The ARXIS series represents OTC’s latest generation of welding machines. These high-end inverter models, with power classes ranging from 300 to 500 amps, are built for both manual and automated welding across a wide range of industrial applications.

OTC Daihen ARXIS Manual Welding Power Source

A standout innovation is the rapid calibration feature, which allows calibration on-site without specialized devices or dismantling, ensuring streamlined maintenance. Additionally, the ARXIS offers several key advantages:

  • Higher performance with an increased wire feed speed limit
  • Enhanced gap-bridging capabilities
  • AI-controlled intelligent pulse processing
  • Customizable LCD panel

Each ARXIS welding power source comes as a complete unit, equipped with a wire feeder, water cooler unit, and trolley for maximum practicality and ease of use.

For those looking for a high-performance yet more accessible option, OTC Daihen also offers Economy ARXIS models – P432E, P403E, and P323E. While these models serve as entry-level options in the ARXIS range, they are still far from basic, delivering excellent welding quality for both steel and stainless steel.

The Welder

Highest performance for the welding of steel, stainless steel and aluminium.

  • High speed welding of thin stainless steel sheets.
  • Unique viewing of the welding seams through OTC aluminum-welding characteristics.
  • High speed-pulse mode.
  • Increased gap bridge-ability.
  • Low spatter: Maximum spatter reduction for the whole.
  • Current range: reduction of the spatter up to 80%.
  • Customizable LCD Panel.
  • Higher Power with an upper limit of wire feeding speed from 18 to 22m/min.
  • Artificial Intelligence (AI) controlled smart pulse process.

Type AR-P503L
Rated input voltage 400 V
Primary power max. 27,0 kVA / 24,2 kW
Rated output current range 30-500 A
Rated output voltage range 12-39 V
No-load voltage 80 V
No-load power consumption 49,8 W
Duty cycle 40°C 60%/100% 60 % / 400 A ; 100% / 370A
Protection class IP23
Starting method 80,2 %

Click here to download data sheet.
OTC Daihen ARXIS WB-P503L

The Wire feeder

The CM-041-D wire feed unit is a component that has been specially developed for the ARXIS welding power sources.

It enables precise and controlled feeding of the welding wire during the welding process. This unit ensures a reliable wire feed speed and thus contributes to uniform and high-quality weld seam formation.

Wire Diameter 0.6 mm – 2.4 mm (factory-set for 1.2 mm)
Wire Feed Speed 1.5 – 22 m/min
Power Supply DC 42V
Max Wire Weight 25 kg
Shielding Gas CO2, Argon, or Argon/CO2 mix (max pressure: 0.4 MPa)
Cooling Water or water/glycol mix (max pressure: 0.5 MPa)
Duty Cycle 500A (60%) / 430A (100%)
Dimensions (W x L x H) 317 mm x 775 mm x 392 mm
Weight 16 kg
Protection Class IP23
Compliance Standard IEC 60974-5
Operating Temperature 10 – 40°C
Storage Temperature -10 – 60°C
Humidity 20 – 80% (non-condensing)
Torch Connector EURO-style

Click here to download data sheet.

OTC Daihen Wire feed unit CM-041-D Arxis

The Cooling Unit

The 6H/IF cooling unit is a powerful cooling unit that has been specially developed for ARXIS welding power sources.

With its robust design and reliable cooling technology, the cooling unit is easy to install and operate.

Model 6H/IF
Compatibility Welbee Arxis series
Pump Type Regenerative turbine electric pump
Supply Voltage 400V, 50/60 Hz
Supply Current Max. 0.95A (50 Hz) / 1.1A (60 Hz)
Cooling Power 1.2 kW @ 1 l/min
Pressure (P MAX) 0.45 MPa (50 Hz) / 0.55 MPa (60 Hz)
Tank Volume / Required Fill 5.5 L / 4 L
Protection Flow meter
Conformity Standard IEC 60974-2
Temperature Range 10–40 °C
Moisture Range 20–80% (non-condensing)
Storage Temperature -10–60 °C
Storage Moisture 20–80% (non-condensing)
External Dimensions 391 mm × 197 mm × 826 mm
Weight 14 kg
Additional Details Quick connectors for water (NW5), rear connection, duty cycle rated at 100%

Click here to download data sheet.

OTC Daihen Cooling Unit 6H/IF ARXIS

The Trolley

The Trolley for ARXIS is a practical solution for transporting and organizing your welding equipment.

OTC Daihen Trolley for ARXIS