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 inter face providing only the necessary controls in a compact machine.

Inverter-based, DC power source has a simple-to-use operator inter face providing only the necessary controls in a compact machine.

Thermal overload protection with indicator light helps prevent machine damage if the duty cycle is exceeded or airflow is blocked.

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.

Built-in pulsing capabilities allow the operator to select from four fixed pulse frequencies to satisfy the application.

Built-in pulsing capabilities allow the operator to select from four fixed pulse frequencies to satisfy the application.

Adjustable postflow gives operator better control of the gas parameters affecting weld zone.

Remote amperage control provided through 14-pin receptacle on front of the machine. This permits use of standard remote amperage control devices.

Selectable trigger configuration allows the operator to choose 2T or 4T trigger method.

HF start for non-contact arc starting that eliminates tungsten or material contamination.

Adjustable Hot Start™ for Stick arc starts. Adjust the optimal start current for the application. The current auto -matically increases the output amperage at the start of a weld.

Adjustable postflow gives operator better control of the gas parameters affecting weld zone.

Adjustable postflow gives operator better control of the gas parameters affecting weld zone.