Model 307 Cost-Efficient, Feature-Rich Tube Welding Power Supply

The Model 307 is the most advanced orbital tube welding power supply of its type in the world. It is cost-efficient, easy to use, packed with useful features, and compatible with all new and existing in-the-field AMI fusion weld heads, as well as the Model 95 series weld heads featuring wire feed.

The Windows™-based software is PC compatible, and available in multiple languages. A large color touch screen makes data entry easy and convenient. The USB port facilitates simple and convenient storage of weld schedules and project data. Among the many useful features are auto weld and tack-weld program development, programming by time and/or position, multiple weld schedule libraries, weld data recording, graphical user interface and on-screen help.


  • Automatic weld schedule generation (including tacking)
  • Three weld counters
  • Customizable reports
  • On-the-fly weld schedule modification
  • Rotation programming by time or degrees
  • Graphical user interface
  • Weld data logging
  • Project management software
  • Multiple weld schedule libraries
  • Password protected log-on
  • Multiple language capability
  • Available weld ID label printer
  • On-screen help
  • USB port (for use with a mouse, keyboard, printer, external memory device, etc.)
  • Built-in high-speed printer
  • Encoder-feedback servo controls
  • Real-time digital data acquisition

Compatible with all AMI fusion weld heads: Model 8 series, Model 9 series (including 9CT, and 9E series), Model 4-500.

Compatible weld head featuring wire feed: Model 95

pdf icon Weld Schedule Development Quick Reference Guide

  • 150 Amps
  • 50-60 Hz
  • Single Phase
  • Water Cooling
  • Wire Feed

Quick Specs

Input Power115 – 240 VAC ± 10% single phase, 50/60 Hz (auto-switching)
Weld Current
3 – 200 A, 100% Duty Cycle @ 150 A
Current Pulse Rate0.05 to 50 PPS
OverridesCurrent, RPM, Wire, Pulse Rate ± 100%
Memory Capacity20 GB
I/O DeviceUSB (2.0)
DimensionsHeight: 15.75" (400 mm)
Width: 11.50" (292 mm)
Length: 25.25" (641 mm)
Weight62 lbs. (28 kg)