Millermatic 255 vs Unlimited 140

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.

Spec	Millermatic 255	Unlimited 140
Process	MIG (GMAW), pulsed MIG (GMAW-P), and flux-cored (FCAW). Source	GMAW/FCAW, SMAW, and GTAW. Source
Output amp range	20–350 A. Source	GMAW/FCAW 30–140 A. SMAW 30–75 A. GTAW 20–110 A. Source
Rated duty cycle	230 A at 25.5 V, 60% duty cycle. Source	GMAW/FCAW 30% at 90 A. SMAW 40% at 75 A. GTAW 20% at 110 A. Source
Input voltage and plug	208–240 V, single-phase. Auto-Line 208–575 V, single-phase. The quick specs do not print input amperes. Source	120 VAC / 60 Hz. Current input: GMAW/FCAW 21 A, SMAW 21.3 A, GTAW 20.5 A. Source
Wire or rod size	Not published by manufacturer Source	Solid core .025 / .030 / .035 in. Flux-cored .030 / .035 in. Wire speed 80–275 IPM. Spool capacity up to 12 lb. Source
Weight	Machine only: 84 lb. (38 kg). Machine with running gear: 148 lb. (67 kg). Source	Not published by manufacturer Source
Material thickness	Not published by manufacturer Source	Not published by manufacturer Source