NRW-IN16K4

- Welds High Conductivity Materials (Cu, Al, etc.) and Large Fusing Parts! -

NRW-IN16K4

Nippon Avionics Co., Ltd. (Head office in Tokyo, Japan, hereinafter Avio), a subsidiary of NEC Corporation, announced today the availability of a newly developed, large capacity inverter type welding power supply, Model NRW-IN16K4 ^(*1). This powerful unit provides the high quality joining of Copper (Cu) and Aluminum (Al); important materials increasingly being used in the manufacturing of high capacity motors for electric motorization of automobiles, batteries, and energy related devices.

New Product Features

Fuse welding (welding of coil wire and terminals) of large motors that require large current capacity and long welding duration.
Weld high conductivity materials, such as Cu and Al, using the efficient control of large current uniquely provided by this new welding inverter power supply system.
New standard features include a welding waveform graphic color display and waveform memory; an industry first for models offering the same output current level ^(*2). This convenient display allows easy setting of welding conditions and control of weld quality.

Welding Performance

Maximum Welding Current of 16,000 Amperes is Twice the Level Previously Offered by Avio.
This higher current capacity allows fuse welding of large parts and welding of high conductivity materials.
Industry's Longest Welding Time for Same Output Current Capacity Level ^(*2) ^(*3); Up to Three (3) Seconds Duration.
With up to 3 seconds welding duration, Avio's new Model NRW-IN16K4 can be used for resistance brazing where long welding duration is required.

Multiple Useful Functions

Accommodates Various Welding Requirements Based on Its Multi Control Modes
Various welding procedures, including welding quality and productivity, are easily implemented by selection of constant current, constant voltage or constant power modes.
Stable Welding Quality Based on Pre-weld Judgment Function
Abnormality of welded object or electrode can be detected by flowing extremely small current for a short time and measuring the resistance between the objects to be welded before the actual welding process. This avoids damage to products and to the welding electrode due to sparking.
Expanded Welding Applications with Increased Memory Capacity for up to 255 Welding Conditions - an 8 Times Increase from Avio's Earlier Models
Multiple welding points can be welded under different welding conditions, for example, in the production of motors.
Input Voltage of 400 V Standard is Useful in the Global Market
Standard: 3 phase / 400 V (380 – 415 V)
Optional: 3 phase / 200 V (200 – 230 V)

Setting and Monitoring Functions - Another Idustry First for Same Output Current Capacity Level ^(*2)

Graphic Display of Welding Waveform Simplifies the Setting of Welding Conditions and Enhances Quality Control
As the welding conditions and welding result are displayed graphically, setting of welding conditions or judgment conditions is straightforward.
Waveform Memory Function Enables Efficient Setting of Optimum Conditions
Graphically displayed welding waveforms may be stored for review, analysis of the welding data, and comparison with past data for analysis of defective welds.
Ample Monitoring Functions Contribute to Improvement of Welding Reliability and to Stable Production
In addition to the limit monitor, profile monitor and trace monitor, functions to detect overcurrent, overheating and no-current are also included as standard safety features.

(*1)　CE Mark approval scheduled in November
(*2)　Based on our research as of September 2013
(*3)　Maximum current of 9,500A at 3 seconds welding duration

Application Examples

: Welding of Large Motor Coil and Terminal

: Welding of Copper (Cu) Bus Bar

New large capacity welding head, Model NA-126

Avio will concurrently release a new, large capacity welding head, Model NA-126, to be used with the new high current capacity Model NRW-IN16K4 power supply.
The NA-126 weld head can apply maximum force of 1,800N (Newton), 405 lb-f (pound-force).