SMAW / MMA Digital Welding Inverters
Sigma Weld series welding machines are so sophisticated IGBT based inverters with total digital control having wide current range.
Sigma Weld is designed to meet varied requirement of the welding industry covering Manual Arc Welding, TIG Welding, High Frequency TIG Welding. Advanced micro controller technology enables Sigma weld to have UpSlope DownSlope and pulsing even without the use of high Frequency.
1. Constant Current Output Provided
The output of sigma Weld welding inverters are constant even if there is a power fluctuation in the mains of upto +/- 15%. The power of source works equally well with Generator Sets with balanced load. The output current does not drop even at 100 meters of Copper cable length.
2. Energy Saving, VRD Inbuilt
When the oprerator is not welding for more than 2 minutes, the power source automatically switches to low ocv outpput below 24V for safety of operator. This also lead to saving of no load losses.
3. Excellent Welding Performance in MMA for all alloys
The optimized design along with added features like Adaptive Hot Start, Arc Force Control, helps achieve seamless beads with all streels and alloy steels. welding with all types of electrodes such as 6013, 7018, SS308, or 6010 is also possible with ease.
Machines, Electrodes & Current Selector Guide
|SW 170 MMA||1.6||30-35||50-75||20-45|
|SW 170 MMA||2.5||50-100||70-120||40-80|
|SW 170 MMA||3.15||80-130||110-150||70-120|
|SW 250 MMA||4.0||120-170||140-200||100-150|
|SW 400 MMA||5.0||150-250||190-260||140-230|
|SW 600 MMA||6.3||220-370||250-320||200-300|
Protections and Safety
Sigma Weld welding inverters are designed for Safety of both operator and machines, It has inbuilt protections for Overvoltage, Undervoltage, Output Short, Thermal Overload and IGBT Peak Current locking. This ensures longer life of equipment and our inbuilt Voltage Reduction Circuit which ensures OCV as low as 24 Volts or below when not welding keeps operators safe.
|Specification||170 MMA||250 MMA||400 MMA||600 MMA|
|Rated Input Voltage||1φ, 230V ± 15%, 50HZ||3φ, 415V ± 15%, 50HZ||3φ, 415V ± 15%, 50HZ||3φ, 415V ± 15%, 50HZ|
|Power (KVA) @ 100%||3.8 KVA||7 KVA||16 KVA||22 KVA|
|Duty Cycle @ 400C||100% @ 130A||100% @ 200A||100% @ 300A||100% @ 400A|
|Open Circuit Voltage||80V||80V||80V||80V|
|(D x W x H) mm||190 x 400 x 280||320 x 460 x 560||320 x 460 x 560||320 x 655 x 650|
|Weight||10 Kgs||35 Kgs||39 Kgs||50 Kgs|
|1) Thermal Shutdown||Inbuilt(Over temperature Indication)|
|2) Under Voltage||Inbuilt(Over temperature Indication)|
|3) Over Voltage||Inbuilt(Over temperature Indication/MOV)|
|4) IGBT Peak Current||In Built|
|5) Energy Save||In Built|
|6) Cooling Type||Forced Air Cooling|
|1) Air Force Control||Auto Adjusted|
|2) Arc Breaking Control||In Built|
|3) Hot Start Current||30%|
|4) Hot Start Duration(approx.)||300 m sec|
|5) Digital Ammeter & Voltmeter||In Built|
|6) Process Memory Recall||In Built|