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VR1 Series(YD-350VR1 / 500VR1)

350VR1 Catalog
* In addition to this product (welding power source), a wire feeder, remote control unit, torch, and gas regulator are required for welding.

Key functions

  • Continuous evolution of low spatter control

  • Optimization over the entire current range

  • Intuitive operation

  • Easy-to-set welding conditions

  • Output of various data to support quality control and frontline management


Can this model be used for a wide range of applications?

A variety of arc characteristics are available as standard. The optimal mode can be selected according to various welding situations.

Can users master VR1 even if they have little welding experience?

The easy-to-understand display allows intuitive operation. Welding Navigation helps users shorten the time required to determine optimal welding conditions. It is also friendly to those who are not regularly engaged in welding operations.

Is it compatible with the GR3 series?

When you are using the GR3 series, mutual compatibility of ancillary devices is achieved between both series. The wire feeder and torch can be used without any modifications.

Strengths and Features

VR1 weld performance

Improved arc tracking characteristics over the entire current range

Full software control of the welding waveform improves arc tracking characteristics. The arc can be controlled as desired, thereby reducing the amount of spatter generated over the entire current range. Since a variety of arc characteristics have been preinstalled as standard, the optimal welding mode can be selected according to various welding situation.

VR1 hybrid reactle function

Optimization of the current waveform over the entire current range by the hybrid electronic reactor.

High-speed control of the welding current waveform has been achieved. Full software control ensures fine control of output over the entire current range from low to high current, thereby facilitating welding operations and reducing the amount of spatter.

Output management functions

Output management functions support welding quality control and frontline management

Various welding data including the motor current and arc time are output. It is also possible to issue notifications for cases where the preset upper or lower limit is exceeded by blinking the LCD display.

Examples of management functions

Easy-to-understand display for intuitive operation

Easy-to-understand display for intuitive operation

The intuitive operation developed for the GR3 series has evolved further. The setting of welding conditions is completed by entering the required parameters in order from left to right on the display.

Welding Navigation

Welding Navigation shortens the time required to determine the welding conditions

The main unit is equipped with Welding Navigation. The welding conditions are automatically determined by setting various conditions such as a joint shape and plate thickness on the LCD. Furthermore, the use of the Plate Thickness Command will enable users to set the welding conditions simply by entering the plate thickness.* Even individuals who are not regularly engaged in welding or have limited experience can easily set welding conditions.。

* Available for fillet welding of workpieces of the same thickness.

VZ1 remote controller

A variety of options such as the digital remote control unit

In addition to the digital remote control unit that allows users to change and adjust various functions at their fingertips, options such as a welding characteristics expansion unit that can easily add new arc characteristics are provided. These options enable users to build the optimal system according to the use conditions.

Option list


Wire feeder

オプション トーチ

Welding torch

オプション ガス調整器

Gas regulator




Remote control unit

* Cable length : 2 m

See details


Connection cable

Please purchase separately as necessary.

See details


Water-cooling option

Water-cooling option(For 500VR1)

See details


Expansion unit for enhancing welding characteristics

Expansion unit for enhancing welding characteristics

(1) For hard aluminum MIG welding wire (⌀1.2)
YX-PDP001 (dedicated for YD-350VR1)
(2) For mild steel solid CO2 / MAG welding wire (⌀0.6)
YX-PDP002 (dedicated for YD-350VR1)

See details


Model number YD-350VR1 YD-500VR1
Rated input voltage V 200 to 220 AC (200,220,380,400,415,440) 
Number of phases, rated frequency - 3-Phase, 50 / 60 Hz (common)
Rated input kVA 16.4 27.6
kW 15.0 25.8
Maximum open circuit voltage V 68 DC 78 DC
Rated duty cycle (10-minute cycle) % 60 100
Output current adjustment range A 30 to 350 DC 60 to 500 DC
Output voltage adjustment range V 12 to 36 DC 14 to 45 DC
Conrol methoc - IGBT inverter type
Memory functions - 100-channel storage and reproduction
Applicable welding process CO/  MAG / Stainless steel MIG
Waveform control function Digital setting
Applicable shielding gas CO2 (100 %), MAG (Ar : 80 %、CO: 20 %), Stainless steel MIG (Ar : 98 %、O: 2 %)
Applicable wire diameter*1 mm 0.8 / 0.9 / 1.0 / 1.2 1.2 / 1.4 / 1.6
Applicable wire materials Mild steel / Mild steel FCW / Stainless steel / Stainless steel FCW
Pre-flow time s (seconds) 0.0 to 10.0 (adjustable in 0.1 increments)
Post-flow time s (seconds) 0.0 to 10.0 (adjustable in 0.1 increments)
Arc spot time s (seconds) 0.3 to 10.0 (adjustable in 0.1 increments)
Input power supply terminal Terminal block (M6 bolt fixing)
Output terminal Steel plate terminal (with M8 bolt)
External dimensions (width x depth x height)*2 mm 380 x 540 x 640 380 x 540 x 800
Mass kg 48 67

*1: Please check the catalog for the applicable diameters of solid wires and FCWs.
*2: The depth dimension does not include the input power supply terminal cover on the rear panel.
● View the required power supply capacity and cable thickness data



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