Tejindra Electric Works (STERCO)
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Welding Equipment

We supply a broad range of optimum quality welding equipment which includes AC welding equipment, DC welding equipment, A.C. arc welders, DC welding rectifiers, servo voltage stabilizers, rocker arm spot welders, butt welders, band saw/strip butt welders, brazing machines, electroplating rectifiers.
We are engaged in offering various types of good quality ac welding equipment and dc welding equipment like AC Arc Welder, DC Arc Welder, AC Arc Welder (Forced Air Cooled) Model, Rocker ARM Spot Welder, Butt Welder and Wire Butt Welder.


AC Arc Welder (Forced Air Cooled) Model - EC

The robust air cooled AC arc welder have been used for decades as power source for most of manual metal arc welding jobs. These welders are ideal for Rolling Mills, Cement, Plants, Thermal Power Projects, Shipyards and other industries.

Forced air cooled welders are used as a power source for argon gas shielded arc welding tungsten electrodes (tig) for the welding of aluminum & aluminum alloys. These welders are also available in Double Operator Model-EC (D/O).

» Construction
The set consists of heavyweight transformer with Turbofan Cooling for high duty cycle at all amperage. Wounded with copper wire, the transformer is housed in heavy steel frame covered with ventilated M.S. Sheets mounted on rubber wheels. Front wheel of the arc welders are fixed and rear wheels are swiveling type which allows great mobility. The current is controlled by air gap between Primary & Secondary coils with a magnetic shunt.

» Transformer
Doubled copper wound transformer conforming to IS:1851 standards (1975), having core of high grade electrical steel primary & secondary coils.

Coils are of electrolytic copper strips & wires covered with fiber glass and insulated with class 'F' duly vacuum impregnated.
AC Arc Welder


Tejindra Electric Works


DC Welding Rectifier (Forced Air Cooled) - Model - SDC

Ideal for both ferrous as well as non ferrous metals, DC welding rectifiers are extensively used as power source for manual metal arc welding (MMAW) jobs with bare & coated electrodes. These welders are also used as alternative to DC welding generators. The welding rectifiers have no moving parts except the cooling, which ensures greater stability and low maintenance cost. Both main & control rectifier protected against surges by semi conductor devices for positive protections. M.C.B. is provided for protection of the current controller. The on-off switch on the front panel provides greater added safety to the users.

DC Welding Rectifiers can also be used as power source for plasma arc cutting gas shielded arc welding & for Tungsten Electrode (TIG) welding for welding of stainless steel copper alloys. Also suitable for special welding applications such as submerged arc welding and carbon air arc gouging.

Sterco also offers optional accessories with the welding set such as remote control with required cable length, voltmeter, Amp. meter and a set of welding accessories etc.

» Transformer
The heavy duty transformer with core of high grade electrical steel Welding current conforms to IS : 4559 1993. Rectifiers have a 3 phase full waive bridge circuit for higher efficiency and steady form. Rectifiers are mounted on three solid rubber wheels (Front wheels swiveling & steerable type by means of draw bar) for easy mobility, bye bolts have been provided for lifting the machine.

» Advantages
- Energy efficient operation.
- Does not create unbalanced voltage fluctuation on the other load connected simultaneously.
- Starts immediately even with low current.
- Low running and maintenance cost.
- Extremely low ripples in the output.

» Specifications
Rectifiers of higher ratings up to 800 - 1000 amps. with higher O.C.V (Open Circuit Volt) and multi - Operator welding rectifiers can also be made available on demand.
DC Welding Rectifier


Tejindra Electric Works


DC Rectifier Inverter

We are manufacturer of DC Rectifier Inverter with ARC - 400 AMPS. This DC Rectifier Inverter bears the following features:

» Specifications

Input Voltage (V) 3-380 ± 10%
Phase 3
Frequency (HZ) 50/60
Input Current A 50 24Amp.
Open Circuit voltage V 72V.
Current Range A 50-400 10-400
Welding Current at 60% duty cycle 400
Power Factor > 0.9
Efficiency > 0.85
Insulation Class 'F'
Protection Type IP 23
Weight 26 Kgs. Approx.
Dimensions 325x475x537 mm Approx.


DC Rectifier Inverter


DC Welding Inverter

DC Welding Inverter offered by us is available in ARC - 200 AMPS range. We manufacture and supply DC Welding Inverter having following features:

» Specifications
Input Voltage (V) AC 220 ± 10%
Frequency (HZ) 50/60
Rated Input Capacity (KVA) 6.5
No-Load Voltage (V) 65
Output Current Range(A) 10-200
Rated Duty Cycle (%) 60
Efficiency (%) 85
Power Factor 0.91
Insulation Class F
Electrode Diameter (mm) 1.6-3.2
Weight (kg) 7
Dimensions 135 x 205 x 290 mm


DC Welding Inverter


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