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CD-A - Advanced Capacitive Discharge Welder

The CD-A Advanced Capacitive Discharge Welder features dual pulse output control, internal pulse monitoring, optional polarity switching and is automation capable.

The unit offers consistent welding output for repeatable process results, with ultrafast rise time for conductive material welding. Featuring fully controllable dual pulse output, the CD-A provides pulse shaping with 4 discrete pulse lengths, programmable squeeze and hold times and adjustable pulse separation. Furthermore, the units offer the ability to set limits around a schedule to prevent bad welds and a built-in peak current indicator which indicates the last weld peak current. The ability to change polarity – individual settings for positive, negative, or alternating polarity – allows for a way to balance weld nuggets and overcome the Peltier effect, as well as extend electrode life.

The CD-A welder is automation ready and can be easily integrated into production lines. The unit can be programmed to communicate with a host computer or with an automation control system. Operators can set and store up to 63 schedules to quickly change between weld parameters. A schedule chaining feature lets users automatically switch between two different schedules. The power supplies enable rapid fire between pulses for quick welding of adjacent locations.

The CD-A Advanced Capactive Discharcge Welder is ideal for battery tab welding, interconnects, honeycomb tacking and fine wire to pad applications.


Key Features CD-A - Advanced Capacitive Discharge Welder

  • Dual pulse function helps overcome surface inconsistencies
  • Built-in monitor measures peak current for both pulses for process monitoring
  • Process monitor features a color coded bar graph on the RUN screen that provides instant weld history of In Limit/ Out of Limit percentages to assess process performance
  • Upper and lower limits can be set for both pulses, with an option to inhibit Pulse 2 if Pulse 1 is out of limits. Prevents weld blow out
  • Upslope function allows gradual ramping of weld energy to alleviate weld splash
  • Automatic polarity switching between pulses provides even heating between electrodes and increases electrode life
  • Up to four software selectable pulse widths increases the range of welding applications and improves process optimization
  • Efficient power electronics provide high repetition rates
Feature CD-A125A / CD-A300A / CD-A1000A
Input line voltage 90 - 138 VAC, 50 - 60 Hz ; 180 - 264 VAC, 50 - 60 Hz
Dual pulse Yes
Air head driver output 24 V, DC or AC – 0.5 A Max.
Weld schedules 63
Chain schedules (Automatic Step) Yes
Programmable Squeeze Time Programmable per schedule from 0 - 2.999 sec
Programmable hold time Programmable per schedule from 0 - 2.999 sec
Remote Schedule Selection Yes
Programmable Polarity Positive/Negative/Alternating
End Cycle Buzzer Yes
Output Relays Weld Ready, Weld End, Counter Limit, Alarm, Out of Limits
Microprocessor Control Yes
Weld Counter with User Programmble Limit Yes
Languages English, Spanish, German
Dimensions (LxWxH) CD-A125A 388 mm x 261 mm x 375 mm (15.25 in x 10.26 in x 14.76 in)
Weight CD-A125A 20 kg (44 lbs)
Dimensions (LxWxH) CD-A300A 388 mm x 261 mm x 375 mm (15.25 in x 10.26 in x 14.76 in)
Weight CD-A300A 31 kg (69 lbs)
Dimensions (LxWxH) CD-A1000A 388 mm x 261 mm x 375 mm (15.25 in x 10.26 in x 14.76 in)
Weight CD-A1000A 31 kg (69 lbs)
Battery tab welding
Tack welding of carrier strip
Conductive terminal attachment

Customized Solutions

Send your sample to one of our technology centers in Europe for an evaluation. We will then determine which solution meets your needs best. AMADA WELD TECH offers feasibility testing and application consulting.