Miller Syncrowave 400 AC/DC TIG Welder with Cooler, Torch, Wired Foot Control
The Miller Syncrowave 400 complete package is an AC/DC TIG and stick welder supplied with a Coolmate 3S coolant system, running gear, a Weldcraft W-375 torch kit, coolant and an RFCS-14HD wired foot control. Output runs from 5 to 400 A, with a rated output of 300 A at 22 V and 60% duty cycle.
Included are the Syncrowave 400 power source, the Coolmate 3S coolant system, running gear, a Weldcraft W-375 torch kit with accessories (301268), four one-gallon bottles of coolant (043810) and the RFCS-14HD foot control (301589). Net weight is 211 lbs, net dimensions are 43.875 in. H x 28.5 in. W x 36.25 in. L, and a lift eye is standard.
Input is 208 V, 220/230/240 V or 460/480 V at 50/60 Hz, single- or three-phase, and Auto-Link sets the machine to the applied voltage; maximum open-circuit voltage is 70 VDC. For aluminum welding, AC frequency adjusts from 50 to 150 Hz to shape the arc cone, and Pro-Set presets cover Balance, Frequency, Pulse and DIG. It suits manufacturing, construction and fabrication, and farm and ranch shops.
Highlights
Complete package: Coolmate 3S, running gear, W-375 torch kit, coolant and foot control
Wired RFCS-14HD foot control (301589) included
Rated output 300 A at 22 V, 60% duty cycle; 5-400 A range
1- and 3-phase input at 208, 220/230/240 or 460/480 V, 50/60 Hz
Max open-circuit voltage 70 VDC; AC frequency adjustable 50-150 Hz
Net weight 211 lbs; net size 43.875 in. H x 28.5 in. W x 36.25 in. L
Specifications
Brand | Miller |
Manufacturer part number | 951000004 |
Processes | Stick (SMAW), TIG (GTAW) AC and DC |
Current type | AC / DC |
Amperage range | 5-400 A |
Rated output | 300 A at 22 V, 60% duty cycle |
Input voltage | 208 V, 220/230/240 V, 460/480 V |
Input phase | 1- and 3-phase |
Input frequency | 50/60 Hz |
Max open circuit voltage | 70 VDC |
Weldable metals | Aluminum, stainless steel, steel |
AC frequency control | 50-150 Hz |
Net weight | 211 lbs |
Torch kit | Weldcraft W-375 (301268) |
Foot control | RFCS-14HD, wired (301589) |
Net dimensions | 43.875 in. H x 28.5 in. W x 36.25 in. L |
What's in the box
Syncrowave 400 power source
Coolmate 3S coolant system
Running gear
Weldcraft W-375 torch kit and accessories (301268)
Coolant, 4 one-gallon bottles (043810)
RFCS-14HD foot control (301589)
Good to know
Check the input power (voltage, phase and amperage) against your supply before you order.


