Constant Current Output Provided
The output of SigmaWeld Welding inverters are constant even if there is a power fluctuation in the mains of upto +/- 15%. The powersource works equally well with Generator Sets with balanced load.
Energy Saving , VRD Inbuilt
When the operator is not welding for more than 2 minutes, the power source automatically switches to low open circuit voltage output below 24V for safety of operator. This also leads to saving of no load losses.
Excellent Welding Performance
The optimized design along with added features like Inbuilt Hot Start and Inbuilt Arc Force Control, helps achieve seamless beads with all steels and alloy steels. The parameters settable are Peak Current, Base Current, Peak Time, Base Time, Upslope Time, DownSlope Time, Gas preflow, Gas Post flow. If the operator presses the torce switch but does not start welding, the Gas Solenoid is switched off within 10sec. ensuring no wastage of Shielding Gas. In case the tungsten touches the job, the welding current and voltage are stopped immediately, helps avoid Tungsten Inclusion defects.
Protections and Safety
SigmaWeld 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.
Water Cooling Unit Interlocking
SigmaWeld WCS (Water Cooling System) can be easily mounted below the SigmaWeld Welding inverters making in one completely integrated unit. The SigmaWeld WCS contains Stainless Steel Tank, Radiator and Forced Air Cooling. Interlocking of Water Cooling Unit with the program ensures that the WCS is operational only in the GTAW mode. This is to safe guard the Welding Torch and operator.
Welding Automation and Accessories
SigmaWeld GTAW machines can be controlled with the help of our standard push button based remotes, Potentiometer based remotes or Foot Controlled Remote for adjusting Welding Current during welding.
SigmaWeld GTAW machines can be interfaced with Robots, Welding SPM’s and other systems with ease.
SigmaWeld Automation Systems such as Weaving Units, AVC (Automatic Voltage Controllers), Special Purpose Machines, Cold Wire Feeders etc are specially designed to enhance productivity and quality of welding.
Product Selector Guide
|Sigma Weld Model||Material Thickness||Ampere Range||Industry Application|
|SW 170||0.7 to 5 mm||5 to 170||Site Work,Dairy Equipments,Pharma Piping,Training and Maintainence|
|SW 250||0.7 to 15 mm||5 to 250||PetroChem, Aerospace,Pharma Equipment|
|SW 400||0.7 to 25 mm||5 to 400||Precission Metal Fabrication,Boiler,Pressure Vessels|
|SW 600||1 mm upwards||5 to 600||Precission Metal Fabrication,Boiler,Pressure Vessels,Railway Wagons|
|Specification||SW 170 PT||SW 250 PT||SW 400 PT||SW 600 PT|
|Rated Input Voltage||1φ, 230V ± 10%, 50HZ||3φ, 415V ± 15%, 50HZ||3φ, 415V ± 15%, 50HZ||3φ, 415V ± 15%, 50HZ|
|Power (KVA) @ 100%||4.1 KVA||7 KVA||12 KVA||18 KVA|
|Duty Cycle @ 400C||100% @ 130 Amps||100% @ 200 Amps||100% @ 300 Amps||100% @ 400 Amps|
|Open Circuit Voltage||65V||60V||60V||60V|
|Output Range||5-170 Amps||5-250Amps||5-400Amps||5-600Amps|
|(D x W x H) mm||220 x 440 x 560||360 x 650 x 560||360 x 650 x 560||380 x 655 x 650|
|Weight||20 Kgs||40 Kgs||45 Kgs||65 Kgs|
|1) Thermal Shutdown||Inbuilt(Over temperature Indication)|
|2) Under Voltage||Inbuilt(Phase Failure Indication)|
|3) Over Voltage||Inbuilt(Phase Failure Indication/MOV)|
|4) IGBT Peak Current||In Built|
|5) VRD,Energy Saving||Inbuilt|
|6) Cooling Type||Forced Air Cooled|
|7) Water Cooling Interlocking||Water Flow Switch(optional)|
|8) Output Short||Inbuilt (Output Short Indication)|
|1) Gas Pre Flow Time||Settable||0.1 S||30.0 S|
|2) Gas Post Flow Time||Settable||0.1 S||30.0 S|
|3) Peak Current Time||Settable||0.1 S||10.0 S|
|4) Base Current Time||Settable||0.1 S||10.0 S|
|5) Welding Mode||2T||4T|
|6) Hot Start Current||In Built||30%@||300MS|
|7) Digital Ammeter & Voltmeter||Inbuilt|
|8) Process Memory Recall||Inbuilt|