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Maxstar® 350 Competitive Comparison

 
Miller
Maxstar® 350
  
Thermal Arc
ArcMaster 400TS
 
Lincoln
Precision TIG 375
 
Comments
Amperage Range DC 5-350 Amps   DC 5-400 Amps   AC 5-420 Amps
DC 2-420 Amps 		  The Maxstar 350 with its high speed pulse capabilities provide faster welding due to the directional control that this welder provides. You can also expect a higher level of weld quality and precision.
Rated Output (3 Phase) 350A,34V,30%
300A,32V,60%
250A,30V,100%		   400A, 36V, 25%
300A, 32V, 60%
200A, 28V, 100% 		  Single Phase Only   The Maxstar 350 can operate on single or three phase power. For high amperage and high duty cycle with low power consumptions, three phase is recommended.
Rated Output
(Single Phase) 		225A,29V,60%
180A,27.2V,100% 		  300A,32V,25%   375A,35V,40%
350A,34V,60%
300A,32V,100%		 Being able to operate the Maxstar 350 on single phase power provides additional flexibility and operation in areas that three phase is not available or allowed.
Size (H x W x D) in 24.75 x 13.75 x 22.75   16.5 x 8.3 x 17.7   31 x 22 x 26   Inverter technology provides more power than previous models in a smaller package at a fraction of their weight.
Weight 135lb (61kg)   52.9lb (24kg)   397lb (180kg)   The Maxstar is an industrial grade machine that is built with heavy duty components and is still portable at 110 lbs.
Power Management Auto-Line
Any Voltage 208-575VAC
Any Frequency 50-60Hz
Single Phase or Three Phase		   Smart Logic
230 or 460
Any Frequency 50/60Hz
Single Phase or Three Phase 		  Manual Link
208/230/460
Model Specific 50 or 60Hz
Single Phase Only 		  Auto-Line allows for any input voltage hookup (208-575 V) with no manual linking, providing convenience in any job setting. Ideal solution for dirty or unreliable power.
Input Power @ 300 Amps
*Denotes Single Phase 		30A@230VAC
15A@460VAC		   40A@230VAC
20A@460VAC		   92A@230VAC*
47A@460VAC*		   The Maxstar consumes less power than conventional technology, provides more amperage & can be operated on 3-Phase. The result is reduced power costs and less installation costs when 3-Phase is used.
Open Circuit Voltage Low OCV=10-15
Normal OCV=75 		  OCV=69   Normal OCV=80   The Maxstar OCV is selectable (low/normal) for some industry safety standards that require low OCV.
120 Volt Auxiliary Power 15A Duplex Receptacle   No   15A Duplex Receptacle   120 volt power available on all Maxstar 350 models. Power for coolers and small tools.
Last Procedure Recall Yes   No   No Maintains the established parameters in each memory, for all processes. Accurate and consistent setting for each job that you have.
Program Memory 9   5   No Store up to 9 programs for each process. Displayed digitally.
Meters Alpha-Numeric Dual Digital Amps & Volts   (1) Digital Amperage   (1) Digital Volts or Amps The Maxstar 350 is equipped with 4 digit, 14 segment meters. Parameter settings are more clearly identified/understood because the meters spell out what you are setting.
Diagnostics Yes   Yes   No Meter displays of the Maxstar 350 spell out most errors and provide a better road map of the problem.
Auto Remote Sense Yes   No   No Senses when a remote control is plugged into the machine and eliminates the need to have a manual switch configured in the proper position to operate. This feature makes the machine easier to set.
TIG Features
Lift Arc Starts Yes   Yes   No   Controlled contact arc ignition lets you start the arc in DC TIG without the use of High Frequency.
High Frequency Start Only   Yes   Start (DC)   Because HF is only on to start the arc, it does not create HF interference issues in building/facilities.
Pulser Control Yes, Digital, Complete   Yes   Yes, Non Digital, Complete   The pulsing feature is standard on the Maxstar 350 and has expanded parameter ranges for more control.
Max Pulse Frequency DC=5,000 PPS   DC=500 PPS   DC=20 PPS   Pulsing at high speeds between a high PEAK and a low background amperage can constrict and focus the arc - which can reduce weld width and increase travel
speeds.
Sequencer Yes, Digital, Complete   Yes, Digital, Complete   Down-Slope Only   The standard weld sequence feature allows the power source to control the entire weld cycle from start to finish.
Preflow Yes, Digital   Yes, Digital   Internal Dip Switches Control
2 Settings		   Digital control provides consistent preflow times.
Postflow Yes, Digital, Auto-Postflow or Adjustable   Yes, Digital   Yes, Non Digital   Auto Postflow calculates the length of postflow time based on the amperage setting. This eliminates the need to independently set the postflow time for different amperages. This feature preserves the tungsten and prevents porosity.
Spot/Weld Timer Yes, Digital
(0-999 Sec.) =16 Min., 36 Sec.		   Yes, Digital
(0-5 Sec.) 		  No   The Maxstar 350 spot timer length of time is extended to 999 seconds. It also works with the sequence feature and can be used to automate timed welds.
Advanced TIG Features
Programmable Arc Starts Amperage, Time, Polarity   Amperage   Output Start Control   Optimize HF arc starts for the application - program specific. Set start amps & time based on electrode diameter, material thickness & shielding gas.
Trigger Control Standard Remote,
2T, 3T, 4T, 4TL, 4TE 		  2T and 4T   Standard Remote, 2T   A variety of trigger methods can be selected to step thru the weld sequence. Choose the trigger that best fits the application and style of remote control.
Arc Timer/Counter Hours, Minutes, and Cycle Counter   No   No   Can be used for preventative maintenance as well as weld cycle time for accurate costing purposes.
Stick Features
(Stick) DIG Yes, Digital   Yes   Internal Dip Switches Control
2 Settings		   Tailored arc control (DIG) Allows the arc characteristic to be changed for specific applications and electrodes. Smooth running 7018 or stiffer, more penetrating 6010. DIG is active in DC stick welding.
(Stick) Hot Start Yes, Adaptive   Yes   Internal Dip Switches Control
2 Settings		   Adaptive control that provides positive arc starts without sticking.