STH 270

Industrial Applications
Petro/Chemical
Mechanical Contractors
Shipboard Installation
Process Piping

Processes
Stick (SMAW)
TIG(GTAW) Lift-Arc
Pulsed TIG (GTAW-P)

Input Power 400 V, 3-Phase Power
Amperage Range 5–270 A
Rated Output 270 A, 30.8 V @ 40% Duty Cycle
Weight 24 kg (52.9 lb)

The Power of Blue =

Portable in the shop or at the job site —at 24 kg the STH 270 easily moves from location to location.
Inverter-based, DC power source has a simple-to-use operator interface providing only the necessary controls in a compact machine.
Lift-Arc™ start provides TIG arc starting without the use of high frequency.                                                            VRD function is a simple design that reduces the open-circuit voltage to 12 volts when the welding power source is not in use.
Adjustable Hot Start™ for Stick arc starts. Adjust the optimal start current for the application. The current automatically increases the output amperage at the start of a weld.
Adjustable Arc force™ prevents sticking. Adjust the optimal arc force value. Adjustable arc force supports positional welding by increasing the output amperage.
Built-in pulsing capabilities allow the operator to select from four fixed pulse frequencies to satisfy the application