Arc Stud Welding Machine

You are here: Home > Product > Stud Welder > Arc Stud Welding Machine

Arc Stud Welding Machine

Stud Welder

Inverter arc stud welding machine using digital soft-switching inverter technology, giving small size and low weight for easy movement on site. Automatic compensation for supply-voltage fluctuation keeps the weld consistent. Welding current and welding time are controlled by a microcontroller, so heat input is accurate and the first-piece pass rate is high. A gun-test function lets the operator check torch action before welding. Automatic and manual modes are selectable, which suits special applications such as multi-layer through-deck welding, and manual arc welding is also available. Current and time are shown on a clear digital display, and the machine protects itself against under-voltage, phase loss and over-temperature. Applications Mainly for welding studs in carbon steel and stainless steel. Widely used in building steel structures, bridges, rolling stock, shipbuilding, boilers and industrial furnaces.

« Back to Product Center

Key Features

Inverter drawn-arc stud welding with deep fusion and high joint strength
Covers stud diameters from M6 to M24 and above
Suited to structural parts in plate of 3 mm and thicker
Stable welding process, little affected by supply fluctuation
Automatic compensation for supply-voltage fluctuation
Automatic and manual modes, including multi-layer through-deck welding
Ideal for shear connectors and insulation pins in batch installation

Typical Applications

Structural studs and shear connectors for composite floors
Bridge and building steel structures
Ship outfitting and insulation pin welding
Heavy machinery and pressure vessel attachments

Selection & Setup Notes

Drawn-arc stud welding is the standard for structural work: ample penetration, with joints usually stronger than the stud or parent metal. For volume site work, run visual and bend tests on first-off each shift. See the stud welder section.

Standards & Further Reading

External reference: American Welding Society (AWS) — Welding procedure and qualification references published by the American Welding Society.

Frequently Asked Questions

Is grinding required before welding?

Yes — remove rust, mill scale, coatings and oil, or you get lack of fusion and spatter. Grind zinc off galvanised parts locally.

How is a weld judged acceptable?

Visual inspection plus a 30° bend test or torque test; fracture in the parent metal counts as a pass.

What happens if the gun is tilted?

A tilted gun causes one-sided lack of fusion — the leading cause of site rework. Use a guide sleeve and keep plunge force steady.

Arc Stud Welding Machine