AC DC pulse tig welder welding machine MASTERTIG-250AC
AC DC pulse tig welder welding machine MASTERTIG-250AC
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MASTERTIG-250AC
The total solution of TIG welding
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Application:
Metal Fabrication
Maintenance and Repair
Auto Body
Light Industrial -
Processes:
DC TIG (GTAW)
AC TIG (GTAW)
MIX TIG (GTAW)
Stick (SMAW)
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Input Power: 200-240V, 1-Phase
Amperage Range: 5-250A
Rated Output at 40℃ (104℉):
250A at 20V @60% Duty Cycle
Weight: 23kg
PULSED TIG
Conventional Pulsed TIG 
Typically from 0.2 to 10 PPS. Provides a heating and cooling effect on the weld puddle and can reduce distortion by lowering the average amperage. This heating and cooling effect also produces a distinct ripple pattern in the weld bead. The relationship between pulse frequency and travel speed determines the distance between the ripples. Slow pulsing can also be coordinated with filler metal addition and can increase overall control of the weld puddle.
High Speed Pulsed TIG 
In excess of 40 PPS, Pulsed TIG becomes more audible than visible—causing increased puddle agitation for a better as-welded microstructure. Pulsing the weld current at high speeds — between a high Peak and a low Background amperage — can also constrict and focus the arc. This results in maximum arc stability, increased penetration and increased travel speeds.
AC waveshape
Standard Square Wave
The Standard Square Wave offers fast transitions between EN and EP for a responsive, dynamic, and focused arc with better directional control. It forms a fast-freezing puddle with deep penetration and fast travel speeds.
Sine Wave
The Sine Wave a soft arc with the feel of a conventional power source. It provides good wetting action and actually sounds quieter than other waves. Its fast transition through the zero amperage point also eliminates the need for continuous high frequency.
MIX TIG CONTROL
Features of MIX TIG:
The AC current can get a very good clearance, and DC current can get a deeper penetration.
Use the MIX TIG we can get an excellent Arc Concentration,can be carried out the excellent welding performance from thin to thick plate.
1) Nice weld appearance, deep penetration.
2) Excellet Arc Concentration..
3) Substantially reduce the electrode consumption.
MIX TIG Frequency (Hz):
the cycle time of MIX
TIG in 1 second. Adjustable range: 0.1-10Hz.
MIX TIG Balance (DC) %:
DC Balance (%) = (tad/Tmix) x 100
AC Waveshape Controls
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Item No MASTIER TIG-250AC Rated Input Voltage 1PH ~ 230V ±15% Max. Load Power Capacity TIG: 7.81KVA MMA: 8.75KVA Rated Duty Cycle(40oC) 60% TIG: 250A/20V MMA: 200A/28V 100% TIG: 200A/18V MMA: 160A/26.4V Welding Current/Voltage Range TIG: 5A/10.2V~250A/20V MMA:20A/20.8V~200A/28V Open Circuit Voltage 70V~80V Power Factor 0.8 Efficiency 80% TIG Pulse Peak Current 5A~250A Base Current 5A~250A Pulse Frequency 0.2Hz~200Hz Pulse Width (Ratio) 1~100% AC TIG AC Frequency Range 20Hz~250Hz AC Clean Width (AC Balance) +40~-40 AC Clean Ratio (AC Bias) % +30~-50 MIX TIG MIX Frequency: 0.1Hz~5Hz DC Balance: (%) 20-80 Arc-starting Current 5A~250A Crater-filling Current 5A~250A Current Up-slope Time 0.1S~15S Current Down-slop Time 0.1~15S Pre-Gas Time 0.1S~15S Flow-Gas Time 0.1S~15S Spot Arc Time 0.1S~10S MMA Arc Force 10A~200A Hot Start Time 0.1-3S Hot Start Current 10A-200A Dimension (LxWxH) 490X230X385mm Weight (KG) 23KG
Water-cooling Unit: WC-100
Operating Voltage 230V 50/60Hz Rated Power 260W Cooling Power 1.5KW(1L/MIN) Maximum Pressure 0.3MPA/60HZ Recommended Cooling Liquid 20%~40% ethanol/water Tank Volume 6.5L - For Standard accessories
TIG torch:TIG-26
Electrode holder with cable 2M
Earth clamp with cable 2MFor Optional accessories
BINZEL ABITIG ® GRIP 26
Argon gas regular
Trolley:WT-100
Foot Pedal
Water-cooling unit: WC-100
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Q:Are you a factory or a trading company?
A: We are factory with more than 10 years manufacturing experience and we provide perfect OEM and after-sale service.
Q:How can I pay my order?
A: We accept T/T, Western Union, Alibaba Trade Assurance payments. For those orders less than 1000USD, we accept PayPal to pay.
Q:How about your warranty?
A: We offer 3-year product life guarantee ,and a generous 1 year warranty on al purchases that begins with the bill of lading.
Q: Do you have a CE certificate?
A: For every model of machine, it has a CE certificate.
Q:How can I get the quotation?
A: We usually quote within 24 hours after we get your inquiry. If you are urgent to get the price,please send the message on trade management or call us directly
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