Topwell инвертор переменного тока dc Цифровой квадратный волновой импульсный tig MasterTIG 250AC алюминиевых ножках с регулируемой длиной из алюминиевого сплава для аргонодуговой сварки

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Product Overview


Total Solution of TIG welding 
AC/DC TIG & MIX TIG 
MasterTIG-250AC
▪ DC TIG – features the Pulse function, it precisely controls the welding arc, heat input and penetratoin. 
▪ AC TIG – with 2 kinds of AC waveshapes(square wave and sin wave), and 3 kinds of AC waveshape controls(Balance, Frequency and Amplitude). 
▪ MIX TIG – has both AC current and DC current in one duty cycle, better arc concentration and deeper penetration. 
▪ Reliable and Powerful Design – 250A@60% duty cycle, capable for workshop jobs.



Powerful and Reliable design


Bicycle Production
Car Repairation


Able to use for workshop constantly working (Customer purchased on 2014 and run perfectly till now)


Advanced Pulse Controls




The Pulsed TIG function switches the amperage from a high(peak) to a low(background) at a set rate(PPS). Pulsing can reduce heat input by lowering the average amperage, increasing control of the weld puddle, penetration and distortion.


2 AC Waveforms




3 AC waveshape controls 
(For square wave)








Welding Performance


AC TIG For 3mm Aluminum


AC TIG 
Square Wave
Welding current: 158A 
AC Frequency: 132Hz 
AC Balance: -5% 
AC Amplitude: 3%


Stable Arc 
▪ Good clearance 
 ▪ Nice welding puddle 
▪ Great Heat-input Control
Small Heat Affected Zone(HAZ) 
▪ Right color of aluminum 
▪ Nice welding ripple
▪ Good penetration



MIX TIG For 3mm Aluminum


MIX TIG
Welding current: 144A 
MIX TIG Frequency: 1Hz 
MIX DC Balance: 50%


Stable Arc 
▪ Good clearance 
▪ Nice welding puddle 
▪ Great Heat-input Control

Small Heat Affected Zone(HAZ) 
▪ Right color of aluminum 
▪ Nice welding ripple 
▪ Good penetration


Control Panel Introduction




1.Welding Process 
DC TIG/AC TIG/MIX TIG/DC MMA 
2.Ammeter/Voltmeter Display 
3.Pulser Control 
Pulse ON/OFF selection. 
4.Mode
2T(STD)/4T(HOLD)/Spot Arc
5.Arc Ignition Polarity 
6.AC Waveshape types
Advanced Squarewave 
Sin Wave 
7.MIX TIG 
MIX Frequency: 0.1Hz~5Hz
DC Balance:(%)20~80
8.Tungsten Electrode Dia. 
From 2.0mm to >4.0mm
9.Remote: used for foot pedal or remote torch. 
Local: adjusted Currents by face panel 
10. AC Waveshape 
AC Frequency Range:            20Hz~200Hz 
AC Clean Width (AC Balance): +40~-40 
 AC Clean Ratio (ACBias) %:      +30~-50 
11.Memory 
12.Encoder Control 
13.Select welding parameters button 
14.Function Sequence


Customer Reivew


0.7mm AL by Indonesia Customer

Project by Belgium customer


Aluminum Can by Customer

Pressure Vessel from Customer Project


Package details


Standard Package:




Ready for TIG Package:




Welding Master Package:




Specifications


Item No
MASTER TIG-250AC
Rated Input Voltage
1PH ~ 230V ±15%
Max. Load Power Capacity
TIG: 6.3KVA
MMA: 7.1KVA
Rated Duty Cycle(40℃) 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
Power Factor
0.73
Efficiency
80%
TIG
Pulse
Peak Current
5A~250A
Pulse Frequency
0.2Hz~20Hz
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
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
0.1S~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)
490X230X440mm
Net Weight (KG)
21.6KG


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