UB-4000A Linear DC Spot Welder

Formerly known as DC29. Replaces DC25.*

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 control...

Technical Specifications

TechnologyLinear DC
Output RangeAmps: 200 - 4000
Volts: 10
kW: 25.0
Weld Period Range (ms)A: 0 - 99 B: 0 - 999
Output Control ModeCurrent, voltage, power, combo
Open/ Closed LoopClosed
Built in MonitorYes
Automation ReadyYes
Input Power 88 - 264 VAC
Single or 3 phaseSingle
Size (L x W x H)15 in x 8.4 in x 12 in (381 mm x 213 mm x 305 mm)
Weight49 lb (22 kg)