Maxstar 161 STH vs TIG230

Same fields. Each cell is that model's published text. A blank stays "Not published by manufacturer." The outlet chip does not hide either column.

By the WeldFacts editorial team · Checked 2 November 2026 · How we verify

Spec	Maxstar 161 STH	TIG230
Process	Stick (SMAW), Lift-Arc TIG (GTAW), high-frequency TIG (GTAW), and pulsed TIG (GTAW-P). High frequency and pulse are marked STH model only. Source	AC/DC TIG and stick. The page lists nine AC waveforms, including square, sine, triangle, and hybrid. Source
Output amp range	120 V: 5–130 A DC TIG and 20–90 A DC stick. 240 V: 5–160 A DC TIG and 20–160 A DC stick. Source	TIG 2–230 A. Stick 10–200 A. Source
Rated duty cycle	TIG, 120 V: 90 A at 13.6 VDC, 100% duty cycle, and 130 A at 15.2 VDC, 30%. TIG, 240 V: 110 A at 14.4 VDC, 100%, and 160 A at 16.4 VDC, 20%. Stick, 120 V: 60 A at 22.4 VDC, 100%, and 90 A at 23.6 VDC, 30%. Stick, 240 V: 110 A at 24.4 VDC, 100%, and 160 A at 26.4 VDC, 20%. Source	TIG: 35% at 230 A, 60% at 175 A, 100% at 136 A. Stick: 35% at 200 A, 60% at 152 A, 100% at 118 A. The duty lines are not split by voltage. Source
Input voltage and plug	120–240 V, 1-phase. Amps input at the higher duty-point ratings: TIG 22.6 A at 120 V and 15.05 A at 240 V; stick 23.16 A at 120 V and 22.55 A at 240 V. Separate 120 V and 240 V power cords are included. Source	90–275 V, 50–60 Hz. That range covers a 120 V outlet and a 240 V outlet. Input amperes are not in the specifications block. Source
Wire or rod size	Not published by manufacturer Source	Not published by manufacturer Source
Weight	13 lb. (5.9 kg). Source	46 lb. Dimensions 22 in. long, 8 in. wide, 16 in. high. Source
Material thickness	Not published by manufacturer Source	Not published by manufacturer Source

Outlet check, Maxstar 161 STH · Outlet check, TIG230