Miller Maxstar 161 S Stick Welder with X-Case, 120/240V, 20-160A, 907709001
The Miller Maxstar 161 S with X-Case is a compact 13 lb (5.9 kg) DC stick welder for maintenance, field repair and light fabrication, supplied with a protective X-Case carrying case. It runs on 120 V (20 A) or 240 V input, delivers 20-90 A on 120 V and 20-160 A on 240 V, and includes electrode holder and work clamp leads.
Duty cycle is 30% at 90 A on 120 V and 20% at 160 A on 240 V. Open-circuit voltage is 48 V DC and drops to 12-16 V DC with VRD switched on. The machine accepts electrodes up to 5/32 in., welds steel from .020 to 3/16 in. and measures 10.3 x 5.6 x 13.5 in. (262 x 142 x 343 mm), with an upgraded shoulder strap and handle for carrying.
The package includes the power source, the X-Case, a 6.5 ft power cord with 120 V and 240 V power adapters, a 13 ft electrode holder and a 10 ft work clamp, both with cable and Dinse connector, plus the shoulder strap and handle. Settings are made on a digital meter interface. This 161 S is a stick-only (SMAW) welder, not TIG capable, and it carries CSA certification for both U.S. and Canadian standards.
Highlights
Stick-only inverter; cannot TIG weld
20-90 A on 120 V, 20-160 A on 240 V
Open-circuit voltage 48 V DC (12-16 V DC with VRD on)
13 lb (5.9 kg); 10.3 x 5.6 x 13.5 in. (H x W x D)
X-Case carrying case included
CSA certification to U.S. and Canadian standards
Specifications
Brand | Miller |
Manufacturer part number | 907709001 |
Process | Stick (SMAW) |
Input power | 120 V (20 A) or 240 V |
Welding amperage range | 20-90 A (120 V); 20-160 A (240 V) |
Duty cycle | 30% at 90 A (120 V); 20% at 160 A (240 V) |
Open-circuit voltage | 48 V DC (12-16 V DC with VRD on) |
Material thickness | Steel .020 to 3/16 in. |
Electrode size | Up to 5/32 in. |
Dimensions (H x W x D) | 10.3 x 5.6 x 13.5 in. (262 x 142 x 343 mm) |
Net weight | 13 lb (5.9 kg) |
Certifications | CSA certified to U.S. and Canadian standards |
What's in the box
Miller Maxstar 161 S power source
X-Case carrying case
6.5 ft power cord
120 V and 240 V power adapters
13 ft electrode holder with cable and Dinse connector
10 ft work clamp with cable and Dinse connector
Shoulder strap and handle
Good to know
Check the input power (voltage, phase and amperage) against your supply before you order.

