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Resistance Welder Inverter Model NRW-IN8400A


Resistance Welder Inverter Model NRW-IN8400A

The NRW-8400PA inverter resistance welding model was designed to support precision weld of stranded wires to terminals, sensors and fuses in electronic devices. The built-in monitor eliminates the need for an external welding monitor. The model incorporates various functions such as pulse welding and actuation stop.

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  • Fast Responding Current Feedback
    current feedback control by conventional PID and a second method aligned with the peak value of the current waveform is available. These two methods allow stable current supply to the workpiece even as the load fluctuates due to power supply voltage fluctuation or heat generation.
  • Actuate Stop
    This does not make sense for edit. Please add proper description for actuate stop and resend: In addition to the current feedback control of the conventional PID control type, a control method that aligns with the peak value of the current waveform is equipped. Stable current is supplied to workpiece load fluctuation caused by power supply voltage fluctuation or heat generation.
  • Multi-Functional Pulse
    pulse setting function allows for up to 24 variations of weld time and output setting.
  • CAUTION Input
    the next welding output value can be increased or decreased, at any step, by inputting CAUTION from the current data: displacement, temperature, etc.
  • Internal Process Monitoring:
    current, voltage, power and resistance on the secondary side can be graphically displayed and monitored by the model for welding quality judgment. This quality control monitoring is available by the easy-to-operate and read screens on the 5.7-inch TFT color liquid crystal display. Up to 255 parameters can be monitored.

5.7-inch color TFT LCD

Resistance Welding Power Supplies Specifications

Control Frequency2kHz
Control ModePrimary curent peak value control,Secondery current effective value control, Secondery voltage effective value control, Secondary power effective value control, Fixed pulse width control
Range of Output Setting Current: 400 – 8200A、Voltage: 0.400 – 6.200V、Power: 200 – 24,600W、Pulse width:0.0 - 90.0%
Range of Timer Setting(ms)0.0-3000.0(Total time of UP TIME、WELD TIME、DOWN TIME、COOL TIME)
Limit Monitoring FunctionAvarage value/peak value monitoring of current, voltage, power, resistance respectively
Other Monitoring FunctionProfile monitor, Trace monitor
Other FunctionPulsation welding function
Waveform Image MemoryAvairable to save 8 images(Including the last welding result)
Number of Conditions255
InterfaceRS-232C、I/O、Analog output
Cooling MethodAir
Power Source3φ AC200-240V ±10%  50/60Hz  (Option: 3φ AC380-440V ±10%)
Dimensions(mm)W186 × D490 × H265(Excluding protrusions)
Welding transformerNT-IN8400、NT-IN8444、NT-IN4474、NT-IN4436、NT-IN4448

Resistance Welding Transformer Specifications

Power Supply Voltage220V 400V220V400V220V 400V220V 400V220V400V
Cooling MethodAirAirDual Use of Air or WaterAirDual Use of Air or Water
Rated Capacity11kVA10kVA8.8kVA8.8kVA23kVA23kVA30kVA30kVA50kVA50kVA
Transformer Turns Ratio37:174:118:136:124:148:122:144:122:144:1
No Load Secondary Voltage8.4V7.6V17.2V15.7V12.9V11.7V14.1V12.8V14.1V12.8V
Maximum Output Current4000A4000A4000A8000A8000A
Maximum Duty Cycle5%5%5%(Air、10%(Water)5%5%(Air)、10%(Water)
External Dimensions (mm)
(Excluding Protrusions)

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