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Transistor direct current power supplies (also called “Linear DC”) produce much the same results as the high frequency inverter by using a high number of power transistors as the direct energy source. This technology provides clean, square wave forms with extremely fast rise time. Used primarily in constant voltage feedback control, transistor DC power supplies are effective in thin foils and fine wire welding applications and for extremely short welds.

The UB-4000A Linear DC welding control is ideal for applications which require exceptional control, fast rise times, and high quality throughput. UB-4000A requires only single phase input power and can output up to 4000 amps. Ultra-fast rise times permit short overall weld times, resulting in less part deformation and stronger welds. This is extremely important when welding heat sensitive parts such as battery cells or sensitive electronic devices.

UB-500A (5-500 amps), and UB-1500A (15- 1500 amps) are Linear DC controls with feedback modes designed to adapt to part and process variables. These power supplies should be used for smaller applications where closed-loop feedback control and fast response times are required. Safety critical applications such as those found in the medical and automotive markets will benefit from UB-500A’s precision low energy control.

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Available models

Technical specifications
Technology
Linear DC
Output range
5A - 500A, 10V, 4.9kW
Weld period range (ms)
A: 0 - 99, B: 0 - 999
Output control mode
Current, voltage, power, combo
Open/closed loop
Closed
Built-in monitor
Yes
Automation ready
Yes
Input power
88 - 264 VAC
Single or 3 phase
Single
Size (L x W x H)
15 in x 8.4 in x 12 in (381 mm x 213 mm x 305 mm)
Weight
22kg

The UB-500A linear DC micro spot welder provides unsurpassed levels of control for resistance micro spot welding and thermocompression bonding.

 

With a max output of 500 A, UB-500A is a linear DC control with four feedback modes designed to adapt to part and process variables. This micro spot welding machine should be used for smaller applications where closed-loop feedback control and fast response times are required. Safety critical applications such as those found in the medical and automotive markets will benefit from UB-500A’s precision low energy control.

 

A successor to model UB25, and built in the USA, the UB-500A features a variety of updates, including greatly improved waveform control and faster rise time, as well as new side-mounted buss bars with threaded inserts for mounting weld cables, simplified rear panel I/O connections, and an on/off switch on the front for increased convenience.

 

  • Four control modes: current, voltage, power and V-A (voltage-current)
  • Single phase input
  • Compact size
  • Dual pulse schedules
  • Precisely controlled repeatable waveform
  • Very fast rise time
Technical specifications
Technology
Linear DC
Output range
15A - 1500A, 10V, 9.9kW
Weld period range (ms)
Weld 1: 0 - 99, Weld 2: 0 - 999
Output control mode
Current, voltage, power, combo
Open/closed loop
Closed
Built-in monitor
Yes
Automation ready
Yes
Input power
88 - 264 VAC
Single or 3 phase
Single
Size (L x W x H)
15 in x 8.4 in x 12 in (381 mm x 213 mm x 305 mm)
Weight
22kg

The UB-1500A linear DC micro welder provides unsurpassed levels of control for resistance micro welding and thermocompression bonding.

 

With a max output of 1500 A, UB-1500A is a linear DC control with four feedback modes designed to adapt to part and process variables. Built in the USA, the UB-1500A micro welding machine should be used for smaller applications where closed-loop feedback control and fast response times are required. Safety critical applications such as those found in the medical and automotive markets will benefit from UB-1500A’s precision low energy control.

 

UB-1500A features greatly improved waveform control and faster rise time, as well as new side-mounted buss bars with threaded inserts for mounting weld cables, simplified rear panel I/O connections, and an on/off switch on the front for increased convenience.

 

  • Four control modes: current, voltage, power and V-A (voltage-current)
  • Single phase input
  • Compact size
  • Dual pulse schedules
  • Precisely controlled repeatable waveform
  • Very fast rise time
Technical specifications
Technology
Linear DC
Output range
200A - 4000A, 10V, 25kW
Weld period range (ms)
A: 0 - 99, B: 0 - 999
Output control mode
Current, voltage, power, combo
Open/closed loop
Closed
Built-in monitor
Yes
Automation ready
Yes
Input power
88 - 264 VAC
Single or 3 phase
Single
Size (L x W x H)
15 in x 8.4 in x 12 in (381 mm x 213 mm x 305 mm)
Weight
22kg

The UB-4000A linear DC resistance welding control is a 200-4000 amp linear DC control with four feedback modes designed to adapt to part and process variables. Weld energy may be programmed in current, voltage, power, or V-A, in increments as short as .01 milliseconds making this spot welder ideal for small applications in the electronic component and battery pack markets.

 

A successor to model DC25, and built in the USA, the UB-4000A features a variety of updates, including greatly improved waveform control and faster rise time, as well as new side-mounted buss bars with threaded inserts for mounting weld cables, simplified rear panel I/O connections, and an on/off switch on the front for increased convenience.

 

  • Four control modes: current, voltage, power and V-A (voltage-current)
  • Single phase input
  • Compact size
  • Dual pulse schedules
  • Precisely controlled repeatable waveform
  • Very fast rise time

Key features

  • Advanced closed-loop analog control yields repeatable and stable programmable waveforms
  • Extremely fast rise times permit shorter weld times, less part deformation, longer electrode life, and greater weld strength with more part ductility
  • Built-in monitor with graphical screen shows visual trace of energy over time, aiding in weld parameter optimization
  • Side mounted weld cables and compact unit size increase installation options
  • Single phase power input and simple I/O allows for easy setup and versatility of use
  • Aerospace
  • Automotive
  • Defense
  • Electronics
  • Machinery & Manufacturing
  • Medical
  • Semiconductor, Solar & Electronics
AMADA GroupThe AMADA Group is a world leader in the manufacture of machines for sheet metal processing. Established in 1946 by Isamu AMADA, the Japanese Group has attained a unique position in the industry. AMADA not only manufactures machine tools, but also comes up with and proposes technological solutions to support the competitive edge of its Customers. With over 70 years of activities and experience and more than 90 companies, AMADA stands for technology and reliability.
[AMADA, Linear DC, Linear DC Welding Controls, UB Series, UB-4000A, UB-500A, UB-1500A]