Flux-core only · Lincoln Electric

Lincoln Electric K6080-1 Flux-Core Welder

Flux-core only, up to 211 A, 230 V

Updated October 2026

Quick verdict

Made for outdoor and gasless repairs.

Strength
Up to 211 A output.
Trade-off
Duty cycle not stated with amps.
Right buyer
Outdoor and gasless repairs.
Output range
20-211 a
Input power
Dual-Voltage 120/230 V
Duty cycle
30% duty cycle at 175 A
Max steel (maker)
up to 3/8 in
Wire sizes
0.025-0.045 in
Dimensions (seller)
22 x 10.75 x 15.5 inches
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What it welds

The Lincoln Electric K6080-1 Flux-Core Welder is a flux-core only with a maker-stated output of 20 to 211 amps on 230-volt input.

Miller's starting rule, 1 amp for each 0.001 inch of steel, puts 211 amps at roughly 0.211 in of steel in one pass; thicker work means bevels and more passes. Run the amperage selector.

The maker's thickness claim reads "up to 3/8 in". Makers often mean multiple passes or flux-core wire when a claim runs past the amps rule; the wording here says which.

The listing doesn't give a duty cycle with its amperage, which makes long beads hard to plan; the rating plate or manual should state it. Why it matters.

Wire sizes, per the maker: 0.025-0.045 in. Miller's table puts.030 inch at 40 to 145 amps and.035 inch at 50 to 180 amps.

As a flux-core machine it runs self-shielded wire with no gas bottle, which suits outdoor work; expect slag to chip off and less finesse on thin sheet.

It needs a 240-volt circuit; have a licensed electrician install the receptacle the manual specifies. 120 V vs 240 V.

Eye protection: OSHA's minimum is shade 10 for most of this machine's range. Full table.

Also on the listing: dimensions of 22 x 10.75 x 15.5 inches and a weight of 41 lb.

Is it the right machine for the job?

Buy it for

  • Outdoor and gasless repairs
  • Steel to about 0.211 in per pass

Skip it for

  • Steel much past 0.211 in in one pass
  • Aluminium

What it does well, where it falls short

Does well

  • Up to 211 A output
  • No gas bottle needed

Falls short

  • Duty cycle not stated with amps
  • Needs a 240 V circuit
  • Slag cleanup

Power and setup notes

  • Ratings are the maker's own, stated under the maker's conditions. Follow the manual, wear eye protection of at least OSHA's minimum shade, keep combustibles away, ventilate, and have a licensed electrician install new circuits.

Rated output and specs

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Model numberK6080-1Retailer
Dimensions (seller)22 x 10.75 x 15.5 inchesRetailer
Product weight41 lbRetailer
Output range20-211 aRetailer
Duty cycle30% duty cycle at 175 ARetailer
Input powerDual-Voltage 120/230 VRetailer
Max steel (maker)up to 3/8 inRetailer
Wire sizes0.025-0.045 inRetailer

Machines to put next to it

Other mig and flux-core welders in the same amp range

Every mig and flux-core welders on one spec sheet · All Lincoln Electric machines listed

Final verdict

Made for outdoor and gasless repairs.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

How thick can the Lincoln Electric K6080-1 Flux-Core Welder weld?
The maker states "up to 3/8 in". By Miller's 1 A per 0.001 in rule its 211 A top output reaches about 0.211 in in one pass.
What is the Lincoln Electric K6080-1 Flux-Core Welder's duty cycle?
The listing doesn't state it with an amperage; check the rating plate or manual.
What power does the Lincoln Electric K6080-1 Flux-Core Welder need?
230 volts per the maker; the manual states the circuit and plug.