New Welders Rewards! | Earn points on every purchase, unlock exclusive perks, and score serious savings.

Miller Dynasty® 400 TIG/Stick Welder (208-600V) #907858

Part Numbers: 907858
UPCs: 715959708364
2 Reviews

Ships Free To Lower 48 States

Miller Dynasty® 400 TIG/Stick Welder (208-600V) #907858

Part Numbers: 907858
UPCs: 715959708364
2 Reviews
$13,151.00 + Free Shipping $15,189.00*
SAVE $2,038.00
Login or signup to earn 13151 Welders rewards points.

Ships Free To Lower 48 States

Miller Dynasty® 400 208-600 V - 907858
Miller Dynasty® 400 TIG/Stick Welder (20...

Included with your purchase:

Choose Options
American Welder T-Shirt - Back
FREE!
Welders Supply T-Shirt & Stickers
Small
Medium
Large
1X Large
2X Large
3X Large
Welders Supply cup holder
FREE!
Welders Supply Magnetic Cup Holder
$13,151.00 + Free Shipping $15,189.00*
SAVE $2,038.00
Login or signup to earn 13151 Welders rewards points.

Welding type:

TIG

TIG

Power supply:

220V Single Phase

220V Single Phase

220V 3 Phase

220V 3 Phase

460V

460V

600V

600V

Material type:

Mild Steel

Mild Steel

Stainless Steel

Stainless Steel

Aluminum

Aluminum

Related Products

Forney 220 AC/DC TIG Welder Package #420
$330 MFR Rebate
Forney 220 AC/DC TIG Welder Package (110-230V 1PH) #420 2 purchased
$2,399.99
Free Shipping
Miller Big Blue 800 Duo Air Pak 907752001 FREE helmet FREE gloves online at Welders Supply
Helmet Gift Pack
Miller Electric Big Blue® 800 Duo Air Pak™ Truck Mount Spec #907752001
(2)
Save $11,241.00
$72,558.00
$83,799.00
Free Shipping
Highest quality professional grade CK WorldWide WF-5 Tig Cold Wire Feeder online sale CK Worldwide CK WorldWide WF-5 Tig Cold Wire Feeder #WF5
Save $200.00
$3,750.00
$3,950.00
Free Shipping
Miller Dynasty® 210 TIG/Stick Welder (120-480 V), CPS #907816001 for sale online Miller Electric Dynasty® 210 TIG/Stick Welder (120-480 V), CPS #907816001
Save $1,097.00
$7,081.00
$8,178.00
Free Shipping
Miller Dynasty® 300 Multiprocess Welder, Wireless Foot Control Complete Pkg #951000100 Miller Electric Dynasty® 300 Multiprocess Welder, Wireless Foot Control Complete Package (208-600V) #951000100
Save $3,333.00
$21,515.00
$24,848.00
Free Shipping
ESAB ROGUE EM190 PRO MIG Welder 0700301083 for sale ESAB Welding Machines ESAB Rogue EM 190 PRO MIG Welder (0700301083) 9 purchased
Save $703.74
$1,045.37
$1,749.11
Free Shipping
Lincoln Electric Flextec 350X PowerConnect (Tweco)/DLF-82 EDU Ready-Pak #K5336-5 Lincoln Electric Flextec 350X PC (Tweco)/DLF-82 EDU Ready-Pak #K5336-5
Save $119.27
$13,184.73
$13,304.00
Free Shipping
Lincoln Electric Flextec® 350X Multi-Process Construction Welder (Twist Mate®) #K3441-2 Lincoln Electric Flextec® 350X Multi-Process Construction Welder (Twist Mate®) #K3441-2 2 purchased
Save $618.86
$5,692.14
$6,311.00
Free Shipping
Lincoln Electric Flextec® 350X PowerConnect® (Twist Mate/Dinse) #K3443-2 Lincoln Electric Flextec® 350X PowerConnect® Multi-Process Welder (Twist Mate/Dinse) #K3443-2
Save $71.36
$8,061.64
$8,133.00
Free Shipping
Lincoln Electric Flextec® 500X / DLF-82 Ready-Pak® #K3608-5 for sale online at Welders supply Lincoln Electric Flextec® 500X / DLF-82 MIG Welder (380-575V 3PH) Ready-Pak® #K3608-5
Save $1,227.68
$11,298.32
$12,526.00
Free Shipping
Lincoln Electric Flextec® 650X Multi-Process Welder w/ CrossLinc™ / Flex Feed® 84 One-Pak® (380-575V 3PH) #K3514-1
Save $1,600.76
$14,719.24
$16,320.00
Free Shipping
Lincoln Electric Frontier® 400X Engine-Driven Welder (Kubota®) #K3484-2 Lincoln Electric Frontier® 400X Welder/Generator w/ Kubota® Diesel Engine (12,500W) #K3484-2 1 purchased
Save $2,630.10
$24,207.90
$26,838.00
Free Shipping
Hobart Multi-Handler 200 Multi-Process Welder #500578 Hobart Hobart Multi-Handler 200 Multi-Process Welder – MIG/TIG/Stick, 120/240V, 500578 3 purchased
Save $388.36
$1,559.99
$1,948.35
Free Shipping
Lincoln Electric POWER MIG 140 MP Multi-Process Welder #K4498-1 Lincoln Electric Lincoln Electric POWER MIG 140 MP Multi-Process Welder – K4498-1 16 purchased
$1,139.99
Free Shipping
Lincoln Electric Maverick® 325X Engine-Driven Welder Ready-Pak® 1 #K3581-1-RP1 for sale Lincoln Electric Maverick® 325X Welder/Generator w/ Kubota® Diesel Engine (10,000W) Ready-Pak® 1 #K3581-1-RP1
Save $2,663.64
$24,494.36
$27,158.00
Free Shipping
Lincoln Electric Power Wave® 300C Advanced Multi-Process Welder, Educational One-Pak® (200-575V 1/3PH) #K4934-1 Lincoln Electric Power Wave® 300C Advanced Multi-Process Welder, Educational One-Pak® (200-575V 1/3PH) #K4934-1
Save $1,741.25
$16,007.75
$17,749.00
Free Shipping
Lincoln Electric Power Wave® S500 Advanced Process Welder & Power Feed® 84 Ready-Pak® #K3187-2 Lincoln Electric Power Wave® S500 Advanced Process Welder & Power Feed® 84 Ready-Pak® (208-575V 3PH) #K3187-2
Save $2,454.92
$22,593.08
$25,048.00
Free Shipping
Razorweld 160di Multi-Process Welder #JRW160di Razorweld 160di Multi-Process Welder #JRW160di Other Razorweld 160di Multi-Process Welder #JRW160di
$1,075.00
Free Shipping
907832005 Miller Trailblazer 330 EFI Excel Power PR Front Lit Splash Screen Miller Electric Trailblazer 330 EFI Engine-Driven Welder w/ Excel Power, Polarity Reversal #907832005
Save $3,217.00
$12,025.00
$15,242.00
Free Shipping
Lincoln Electric Vantage® 322 Welder/Generator w/ Kubota® Diesel Engine (11,000W), Ready-Pak® 1 #K2409-5-RP1
Save $3,218.82
$29,623.18
$32,842.00
Free Shipping
Lincoln Electric Vantage® 549X (Deutz®) Engine-Driven Welder #K3534-2 Lincoln Electric Vantage® 549X Welder/Generator w/ Deutz® Diesel Engine (19,000W) #K3534-2
Save $3,597.15
$33,112.85
$36,710.00
Free Shipping
Lincoln Electric Vantage® 549X (Deutz®) Engine-Driven Welder Ready-Pak® 2 #K3534-2-RP2 Lincoln Electric Vantage® 549X Welder/Generator w/ Deutz® Diesel Engine (19,000W) Ready-Pak® 2 #K3534-2-RP2
Save $3,864.33
$35,565.67
$39,430.00
Free Shipping
ESAB Warrior 300i MIG Multi-Process Welding Package #0558102559 For Sale Online ESAB Welding Machines Warrior 300i MIG Multi-Process Welding Package #0558102559
Save $2,416.16
$10,090.30
$12,506.46
Free Shipping
Miller XMT 350 FieldPro with Polarity Reversing, ArcReach® Stick/MIG/TIG Remote Pkg #951737 Miller Electric XMT 350 FieldPro with Polarity Reversing, ArcReach® Stick/MIG/TIG Remote Pkg #951737
Save $1,975.00
$12,751.00
$14,726.00
Free Shipping
Miller XMT® 350 FieldPro™ with Polarity Reversing, Dinse® #907731002 Miller Electric XMT® 350 FieldPro™ with Polarity Reversing, Dinse® #907731002
Save $1,541.00
$9,944.00
$11,485.00
Free Shipping
Miller Aluma Power 350 MPa MIG Welder w/ Aux Power #907420001 For Sale Online
Helmet Gift Pack
Miller Electric Aluma Power 350 MPa MIG Welder w/ Aux Power #907420001
Save $1,359.00
$8,773.00
$10,132.00
Out of Stock
Free Shipping
Miller ArcReach® Smart Wire Feeder, Bernard™ PipeWorx 300 Amp Gun Pkg #951733 Miller Electric ArcReach Smart Feeder, Bernard PipeWorx 300 Amp Gun Pkg #951733 1 purchased
Save $1,577.00
$10,182.00
$11,759.00
Out of Stock
Free Shipping
Miller Big Blue 400 PipePro (Mitsubishi) Stainless Steel w/Wireless Interface Control 907805 Ships FREE to lower 48 states.
Helmet Gift Pack
Miller Electric Big Blue 400 PipePro (Mitsubishi) w/ Remote #907805
(1)
Save $4,899.00
$31,623.00
$36,522.00
Out of Stock
Free Shipping
Miller Big Blue 600 PRO (Kubota) Deluxe w/ ArcReach #907737001
Helmet Gift Pack
Miller Electric Big Blue 600 PRO Deluxe w/ ArcReach #907737001
Save $7,524.00
$48,571.00
$56,095.00
Out of Stock
Free Shipping
Top welders Miller Big Blue 400 Pro (Mitsubishi) best beginner gift
Helmet Gift Pack
Miller Electric Big Blue® 400 Pro (Mitsubishi) #907733
(1)
2 purchased
Save $3,890.00
$25,105.00
$28,995.00
Out of Stock
Free Shipping
Big Blue® 800 Duo Air Pak™ Truck Mount w/Wireless Interface Control #907752004 Miller Electric Big Blue® 800 Duo Air Pak™ Truck Mount w/Wireless Interface Control #907752004
Save $11,758.00
$75,895.00
$87,653.00
Free Shipping
Miller Deltaweld 500 MIG Welder w/ 14-Pin (208-230/460V) #907785001 For Sale Online
Helmet Gift Pack
Miller Electric Deltaweld 500 MIG Welder w/ 14-Pin (208-230/460V) #907785001
(1)
1 purchased
Save $1,347.00
$8,696.00
$10,043.00
Free Shipping
Miller Dynasty® 300 Multiprocess Welder w/ AC/DC & Pulsed TIG #907819 Miller Electric Dynasty® 300 Multiprocess Welder #907819
(2)
Save $1,826.00
$11,785.00
$13,611.00
Free Shipping
ESAB Rogue EM 140 MIG Welder 0700301081 for sale ESAB Welding Machines ESAB Rogue EM 140 MIG Welder - 0700301082 7 purchased
Save $360.60
$643.23
$1,003.83
Out of Stock
Free Shipping
Beginner welding kit ESAB ET 220i AC/DC HF TIG Package on sale
Cup Holder + Shirt
ESAB Welding Machines ET 220i AC/DC HF TIG Welder Pkg (220-460V 1/3PH) #W1009301 2 purchased
Save $997.36
$6,907.89
$7,905.25
Out of Stock
Free Shipping
Lincoln Electric Flextec® 650X Multi-Process Welder with CrossLinc™ Technology #K3425-1 for sale online at Welders Lincoln Electric Flextec® 650X Multi-Process Welder with CrossLinc™ Technology (380-575V 3PH) #K3425-1 2 purchased
Save $1,029.75
$9,477.25
$10,507.00
Out of Stock
Free Shipping
Lincoln Electric Lincoln Electric Idealarc® DC-1000 Subarc Welder #K1386-3 for sale online at Welders Lincoln Electric Idealarc® DC-1000 Subarc Welder (230/460V 3PH) #K1386-3
Save $2,654.98
$24,438.02
$27,093.00
Out of Stock
Free Shipping
Miller SPECTRUM 625 X-TREME #907579001 with 20 Ft XT40 Torch Ships with Free Helmet and Gloves
$400 MFR Rebate
Miller Electric Maxstar 161 STH, X-Case, Pulsed TIG/Stick Fingertip Ctrl Pkg #907711001
(1)
37 purchased
Save $894.00
$3,335.00
$4,229.00
Out of Stock
Free Shipping
Miller Bobcat 200 Air Pak Diesel #907760
Helmet Gift Pack
Miller Electric Miller Bobcat™ 200 Air Pak™ Diesel #907760
(1)
4 purchased
Save $4,120.00
$26,592.00
$30,712.00
Out of Stock
Free Shipping
Miller Multimatic® 255 Multiprocess Welder w/ EZ-Latch™ Dual Cylinder Running Gear & TIG Kit #951768
$400 MFR Rebate
Miller Electric Miller Multimatic 255 Multi-Process Welder – EZ-Latch Dual Cylinder & TIG Kit, 951768
(1)
98 purchased
Save $1,664.77
$6,230.00
$7,894.77
Out of Stock
Free Shipping
Multimatic® 255 Multiprocess Welder - 208-575V
$400 MFR Rebate
Miller Electric Miller Multimatic 255 Multi-Process Welder – MIG/TIG/Stick, 907728
(3)
41 purchased
Save $1,276.07
$4,777.00
$6,053.07
Free Shipping
Easy to use welder Miller XMT® 350 CC/CV, Dinse, Aux Power
Helmet Gift Pack
Miller Electric XMT® 350 CC/CV, Dinse, Aux Power #907161011
Save $1,445.00
$9,326.00
$10,771.00
Out of Stock
Free Shipping
  • TIG welderTIG Welding
  • Stick welderStick Welding
  • 1- or 3-Phase Input
  • 208-600V Input
  • 8 ft Power Cord
  • 3-Year Warranty

Miller Dynasty® 400 TIG/Stick Welder Power Supply, 208-600V #907858
Miller True Blue 3-Year Warranty

Introducing Miller's latest professional TIG welding technology. A powerful, compact AC/DC inverter delivers superior arc performance with total AC arc-shaping capabilities. Auto-Line™ allows connection to any voltage or frequency in the world while using half the power of a conventional machine.

This package includes the Dynasty 400 power source and 8-ft power cord.


What's Included:

  • Dynasty 400 power source
  • 8 ft power cord (no plug)
  • Two 50 mm Dinse-style connectors

Applications

  • Precision fabrication
  • Heavy fabrication
  • Pipe and tube fabrication
  • Aerospace
  • Aluminum ship repair
  • Anodized aluminum fabrication
Miller Maxstar® 400 TIG/Stick Welding Machine Power Source (208-600V) #907873

Standard Features of the Miller Dynasty 400 #907858

This TIG/stick professional welding machine power source comes with:

Intuitive Interface LCD Display - Ensure proper machine setup and parameter selection with informative on-screen explanations and dynamic images.

AC and DC TIG Features - AC TIG Features Independent amplitude/amperage control allows EP and EN amperages to be set independently to precisely control heat input to the work and electrode. Extended AC balance (30–99%) controls the amount of oxide cleaning (amperage time in EN) which is essential for high quality welds on aluminum. AC frequency (20–400 hz) controls the width of the arc cone and the force of the arc. DC TIG Features Exceptionally smooth and precise arc for welding exotic materials. High-speed DC TIG pulse controls - Pulse frequency capable of pulsing 5000 pulses per second. Pulsing adds arc stability, reduces heat input and warpage and can increase travel speeds. Other parameters include peak amperage, peak time and background amperage.

Program Memory - Allows easy naming, saving and recalling of favorite weld settings.

Locks and Limits - Provides control of the weld parameter ranges minimizing deviations from the welding procedure specifications (WPS).

USB Port - Provides the ability to easily update software, back-up settings and transfer saved weld programs from one unit to the next.

Pro-Set Feature (professional settings) - This feature eliminates the guesswork when setting weld parameters. Use Pro-Set when you want the speed, convenience and confidence of pre-set controls. Simply select the feature and adjust until Pro-Set appears on the display. The Pro-Set feature is available for Balance, Frequency, Pulse and DIG parameters.

AC Frequency Control - Control the width of the arc cone and can improve directional control of the arc with adjustments between 50-150 Hertz.

Auto-Line™ Technology - For portability and reliability this inverter power supply allows for any single-phase input voltage hookup (208–600 V) with no manual linking, providing convenience in any job setting. Ideal solution for dirty or unreliable power.

Stick Features - Tailored arc control (DIG) allows the arc characteristics to be changed for specific applications and electrodes. Smooth running 7018 or stiffer, more penetrating 6010. Hot Start™ adaptive control provides positive arc starts without sticking.

QuietPulse™ - Activate QuietPulse by selecting sine or triangular waveshape to reduce audible noise.

AC Waveforms - Advance Squarewave provides a fast freezing puddle, deep penetration, and fast travel speeds. Soft Squarewave is used for a soft buttery arc with maximum puddle control and good wetting action. Sine wave is for customers that like a traditional arc. It is quiet with good wetting. Triangular wave reduces the heat input and is good on thin aluminum. It provides fast travel speeds.

Miller TIG/stick welding machines & accessories

Fast, Free Shipping & Easy Returns

Your in-stock items ship same or next day from our five distribution hubs in WI and IL via fast UPS Ground. Need special shipping? Just call 1-844-682-0205 - we accommodate any request, including using your shipping accounts. Enjoy hassle-free 14-day returns on new, sealed products. Count on exceptional service backed by industry-leading shipping and return policies. Experience the advantage on your next order!

Check out the wide selection of MIG, TIG, Stick and Gas welders available at Welders Supply Company.

This product replaces these legacy models:

Miller Dynasty® 400 907858 Specifications

 Input Power

Welding Amperage Range

 Rated Output

Amps Input at Rated Load Output, 50/60 Hz 

208 V   230 V   400 V   460 V   600 V   KVA     KW

Max. Open-Circuit  Voltage

3-phase

 

 

 

3–400 A

 

 

 

250 A at 30 V, 

100% duty cycle

28        26        14        13       10        10.3    9.8

 

75 VDC

(10–15 VDC*)

 

 

 

 

 

 

300 A at 32 V, 

60% duty cycle

36        33        19        16       12        13.1    12.5

 

1-phase

 

 

 

3–400 A

 

 

 

200 A at 27.2 V, 

100% duty cycle

39        35        19        17       12        8.2      7.5

 

250 A at 29 V,

60% duty cycle

52        47        26        22       16        10.9    9.9

Dynasty 400 Performance Data

Input Power

TIG (GTAW) Duty Cycle

Stick (SMAW) Duty Cycle

AC TIG Material Thickness Range

DC TIG Material Thickness Range

Stick Electrode Maximum Diameter

Carbon Arc Gouging (CAC-A) Maximum

Generator Requirement

3-phase

 

 

400 A, 20%

300 A, 60%

250 A, 100%

400 A, 20%

300 A, 60%

250 A, 100%

.015–5/8 in. (0.38–15.9 mm)

.012–5/8 in. (0.3–15.9 mm)

6010: 1/4 in. (6.4 mm)

7018: 1/4 in. (6.4 mm)

7024: 1/4 in. (6.4 mm)

1/4 in. (6.4 mm)

20 kVA

1-phase

300 A, 20%

250 A, 60%

200 A, 100%

300 A, 20%

250 A, 60%

200 A, 100%

Dynasty 400 Tungsten

Tungsten                                                    

    Amp Range                                       

    2% Ceriated (AC/DC)                       

    2% Lanthanated (AC/DC)

1/16 in. (1.6 mm)                                       

    70–150 A                                          

    WC116X7                                          

    WL2116X7

3/32 in. (2.4 mm)                                       

    140–250 A                                       

    WC332X7                                          

    WL2332X7

1/8 in. (3.2 mm)                                         

    225–400 A                                       

    WC018X7                                          

    WL2018X7

5/32 in. (4.0 mm)                                       

    300–500 A                                       

    WC532X7                                          

    WL2532X7

SHIPPING DIMENSIONS

Height: 31.00 Inches
Width: 23.50 Inches
Length: 36.00 Inches
Weight: 155 Lb(s) 0 Oz

Manufacturer Reviews

Kevin
Our company needed to upgrade in order to compete in the Aluminum Welding industry, the Dynasty 400 is an amazing purchase that is reliable and dependable. It has a lot of new high tech features that allow the welder to dial in and control the weld bead where we struggled with our older machines. We bought three machines recently and may purchase more soon!
Rbaroquefix
W've used just about every brand welder you can think of (including Miller), and without a doubt, this is the best we've ever experienced. We've used a Miller 320 since 1965 (it's still going strong), and several cheaper Chinese welders, which worked well, but didn't last, and finally convinced the folks that control the money that, for the work we do (vacuum and high-vacuum welding), we really needed the real thing, and we finally got it. We do a lot of fairly heavy (1/2"+) aluminum, as well as lots of stainless, from .03 to .5 inch thick. This new Dynasty 400 makes switching from one to another remarkably easy. All controls are intuitive and easy to use, and being able to save programs is a great time saver.

Product Questions and Answers

Have a question about this product? Submit your question using the form below

Be the first to know about upcoming specials!