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UB-1500A Low Power Linear DC Micro Spot Welder

UB-1500A Low Power Linear DC Micro Spot Welder

  • Category:Linear DC Welders
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  • Publication Time:2026-03-27
  • Product Details

UB-1500A Low Power Linear DC Micro Spot Welder

Formerly known as UB29A or UB25A

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

*UB-1500A replaces the UB25 for current ranges from 15 – 1500 A. Please consult AMADA WELD TECH for suitability of replacement prior to purchase.


Technical Specifications

TechnologyLinear DC
Output RangeAmps: 15-1500

Volts: 10

kW: 9.9
Weld Period Range (ms)Weld 1: 0 - 99 Weld 2: 0 - 999
Output Control ModeCurrent, voltage, power, combo
Open/ Closed LoopClosed
Built in MonitorYes
Automation ReadyYes
Input Power88 - 264 VAC
Single or 3 phaseSingle
Size (W x D x H)8.4 in x 15 in x 12 in (213 mm x 381 mm x 305 mm)
Weight49 lb (22 kg)