Stud Welding Machines in Delhi | ARTECH CD & Drawn Arc

Stud welding fixes a threaded stud, pin or fastener to a plate in a fraction of a second, welded over its full cross-section, from one side only. It replaces drilling, tapping, riveting and the nut on the back — and on a sealed vessel or a finished panel it is often the only method that does not leave a hole.

We supply the range from ARTECH Welders Private Limited, Pune, who build capacitor discharge and inverter drawn arc stud welding equipment for Indian industry and support it from Delhi, Pune, Bengaluru, Chennai, Ahmedabad, Coimbatore and Raipur.

ARTECH CD 1100 capacitor discharge stud welding machine — ARTECH CD 1100

Two processes, and the line between them

Nearly every stud welding question comes down to one decision: capacitor discharge or drawn arc. Stud diameter and base-metal thickness decide it, and the two machines are not interchangeable.

Capacitor discharge — small studs, thin metal

A bank of capacitors dumps its charge through a small ignition tip on the end of the stud. The whole weld is over in one to three thousandths of a second, so almost no heat reaches the far side of the sheet.

That is the point of it. ARTECH rate the process down to material about half a millimetre thick, with no mark, no discolouration and no distortion on the show face — nothing to re-work on the other side, and no flux or shielding gas required.

Choose it for M3 to M8 studs on sheet: control and electrical panels, elevator panels, transformer tanks, heat exchangers, insulation pins, cookware and kitchen equipment.

Drawn arc — bigger studs, real structure

The stud is lifted to draw a pilot arc, the arc melts both the stud end and the parent metal, and spring pressure plunges the stud into the pool. Weld time runs from 10 to 600 milliseconds, long enough to fuse a substantial cross-section.

The result is a full-strength joint, fused across the whole face of the stud and vibration-proof. It needs a heavier base metal to weld into and a three-phase supply.

Choose it for M3 to M16 studs on plate: shear connectors, insulation and cladding pins, automobile and earth-moving fabrication, boiler and power plant work, and anywhere the fastener carries load.

The range

Model	Process	Stud range	Welding current	Weld time	Supply	Weight
CD 1100	Capacitor discharge, tip ignition	M3 – M8	66,000 µF bank, 50–200 V charging	0.001 – 0.003 s	230 V, 1 ph, 50 Hz	20 kg	PDF Quote
i12	Inverter drawn arc	M3 – M12	800 A max	10 – 400 ms	415 V, 3 ph, 50 Hz	—	PDF Quote
i16	Inverter drawn arc	M3 – M16	1200 A max	10 – 600 ms	415 V, 3 ph, 50 Hz	—	PDF Quote

Every figure here is from the ARTECH datasheet, which you can open above. The CD 1100 welds up to ten studs a minute depending on diameter. The i12 and i16 take a gap-type gun and a graphic LCD, and carry password protection, a weld counter and self-diagnosis against overheating, input error and internal faults.

What goes with the machine

Gun and cables. 3 m on the CD 1100, 5 m on the drawn arc sets, with earth cables to match. Reach matters — tell us how far the machine will stand from the work.
Chucks and ferrules sized to the stud. Drawn arc welding uses a ceramic ferrule to contain the pool; capacitor discharge does not need one.
The studs themselves — mild steel or stainless; threaded, plain, insulation pin or shear connector. Tell us the fastener and we will quote it with the machine.

ARTECH i12 inverter drawn arc stud welding machine — ARTECH i12

Where it earns its money

Stud welding is rarely bought because someone wants another welding process. It is bought because a fastening operation has become the slow, the expensive or the leaking part of a job:

No hole, so no leak. On a transformer tank, a pressure enclosure or a fuel tank, a welded stud fixes brackets and covers without breaching the wall.
Access from one side only. Closed sections, finished assemblies, panels you cannot get behind.
Speed. A stud is welded in well under a second. Against drilling, tapping, deburring and fitting a nut, the comparison is not close.
A clean show face. Capacitor discharge leaves the reverse of thin sheet unmarked, which matters on panels, appliances and anything painted or polished.
Fasteners that do not shake loose. A drawn arc stud is fused over its full section, so there is nothing to work loose under vibration.

The work we see most often: control and electrical panels, elevator panels, transformer tank manufacture, heat exchangers, insulation pinning in shipbuilding and ducting, automobile and earth-moving equipment, power plant fabrication, farm equipment and cookware.

Not sure which side of the line your job falls on? Send the stud size, the base metal and its thickness, and whether the reverse face is visible — that is all it takes. Our welding process selection guide applies the same reasoning to the rest of the range.

ESAB India

BDS Germany

PROMOTECH Poland

FEIN Germany

Laser Technologies

ARTECH India

Sudha & KEMPER

ARTECH Stud Welding Machines