Professional inverter welder ac dc tig welding machine MASTERTIG-250AC
Professional inverter welder ac dc tig welding machine MASTERTIG-250AC
Professional inverter welder ac dc tig welding machine MASTERTIG-250AC
Professional inverter welder ac dc tig welding machine MASTERTIG-250AC
Professional inverter welder ac dc tig welding machine MASTERTIG-250AC
Professional inverter welder ac dc tig welding machine MASTERTIG-250AC
Model
MASTERTIG-250AC

Item specifics

Rated Input Voltage
1PH ~ 230V ±15%
Max Open Circuit Voltage
7.81KVA
Warranty
1 year warranty
Dimensions
490x230x440mm

Review

Description

DETAILS
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.

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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.
Advanced Pulse Controls
Control Panel Description
Control Panel
1. Welding Process
DC TIG/AC TIG/MIX TIG/DC MMA
2. Pulser Control
3. AC Waveshape Types
Advanced Squarewave
Sin Wave
4. MIX TIG
5. AC Waveshape
AC Frequency Range 20Hz~200Hz
AC Clean Width (AC Balance) +40~-40
AC Clean Ratio (ACBias) % +30~-50
AC Frequency control


Controls the width of the arc cone. Increasing the AC Frequency provides a more focused arc with increased directional control.

Note: Decreasing the AC Frequency softens the arc and broadens the weld puddle for a wider weld bead.

AC Frequency
AC Balance Control


Controls arc cleaning action. Adjusting the % EN of the AC wave controls the width of the etching zone surrounding the weld.

Note: Set the AC Balance control for adequate arc cleaning action at the sides and in front of the weld puddle. AC Balance should be fine tuned according to how heavy or thick the oxides are.
AC Balance
Amplitude Control
Adjusts the ratio of EN to EP amperage to precisely control heat input to the work and the electrode.

Note: EN amperage controls the level of penetration, while EP amperage dramatically effects the arc cleaning action along with the AC Balance control.
Amplitude
Unique MIX TIG
Unique MIX TIG
MIX TIG is TOPWELL's unique technology, it contains AC current and DC current in one duty cycle.That keeps the advantages and reduces disadvantages from each other. Using the MIX TIG technology gets an excellent arc concentration and can be carried out the excellent welding performance, especially for thick plates.




· Nice weld seam, Excellent arc concentration 
Nice weld seam
Deeper penetration






· Deeper penetration
· Substantially reduce the tungsten consumption

VIDEO

SPECIFICATIONS
Machines
Product Name
MasterTIG-250AC
Machines Processes
Stick (SMAW)
TIG (GMAW)
Pulsed TIG (GTAW-P)
Product Weights & Dimensions
Dimensions(L*W*H)
490x230x440mm
Net Weight
23kg
Basic Specification
Input Voltage
1PH ~ 230V ±15%/3PH ~ 380V ±15%
Input Power
TIG: 6.3KVA
MMA: 7.1KVA
Output Range
TIG: 5A/10.2V~250A/20V
MMA: 20A/20.8V~200A/28V
Rated Output(40℃) 100%
TIG: 250A/20V
MMA: 200A/28V
Polarity
AC/DC
SPECIFICATION

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