AIT offers the AVIO line of quality high speed Inverter Welders
Providing you with equipment and technical support
Lower prices on equipment and electrodes than other manufacturers
Shorter lead time, especially on electrodes
Free test weldsand unparalleled customer support
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AVIO Inverter Welders
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High speed and precise control of wave form
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3 Feedback modes (constant current, voltage, or power)
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Pre-weld check function
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Up to 3 second weld time
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LCD graphic display of welding wave form
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Multi Transformer System



Features | NRW-IN4200 | NRW-IN8400 |
Welding Transformer | NT-IN4400 | NT-IN8400 / NT-IN4400 |
Maximum Current | 4000A | 8000A / 4000A |
Control Frequency | 2KHz | |
Control Mode | Constant Current, Voltage, or Power. Fixed Pulse Width | |
Range of Timer Setting | Pre, 1st, 2nd, UP, WELD, DOWN | |
Total Time 0.5 - 3000ms | ||
Setting Range for Weld Type | Current 0.4 - 4.1KA | Current 0.4 - 8.2kA / 0.4 - 4.1kA |
Voltage 0.4 - 4.1V | Voltage 0.4 - 6.2V / 0.4 - 4.1V | |
Power 0.2 - 8.2kW | Power 0.2 - 24.5kW / 0.2 - 8.2kW | |
Current/Voltage/Power, Resistance Monitoring | Average/Peak/Profile | |
Trace Monitoring | Current, Voltage, Power, Resistance | |
Display of Wave Form | Current, Voltage, Power, Resistance | |
Number of Condition | 31 | |
Interface | RS232C | |
Power Source | 200-230 V AC | 380-415V AC / Optional 200-230 V AC |
Welding power supplies come in two broad categories, "closed loop" and "open loop". Open loop designs are capacitive discharge welders and most direct energy, or AC power supplies. These essentially offer no feedback, meaning that a weld command or pulse is sent out, but there is no circuitry to verify how that pulse responds when it hits the point of welding. Closed loop welders are inverter type (high frequency inverter) and transistor type (linear DC) welders. These type of welders are able to control the shape of the welding wave form and monitor the condition of the weld using one of three feed back modes, "constant current", "constant voltage", or "constant power". These feed modes offer great advantages such as better process consistency between multiple weld stations, reduced number of bad welds, and real time automatic adjustment for variations in part thermal loading and plating.
Inverter welders use pulse width modulation to control weld energy. Through a series of rectifiers and switches, the resulting output current is in the form of DC current with an imposed low-level AC ripple. The time of each piece of a cycle can be controlled in sub millisecond increments. Inverter welders have high repetition rates, making them particularly useful in industrial automation.
The Avio welders we are offering here are premium quality Japanese made high frequency inverter welder. We stand by these welders and guarantee our customer support and assistance when you buy an Avio welder from us. All electrodes are manufactured by AIT in our facility in the United States. We can respond quickly to your needs and build custom electrodes to help resolve any welding issues you encounter. Contact us today to see how AIT can make your next welding project a success.