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Lincoln Electric AC-225 AC Arc Welder, Transformer, 230 Volt, 40-225 Amp Output, Model# K1170

Item# 167743
"Lincoln Electric AC-225 AC Arc Welder, Transformer, 230 Volt, 40-225 Amp Output, Model# K1170"
Lincoln Electric AC-225 AC Arc Welder, Transformer, 230 Volt, 40-225 Amp Output, Model# K1170

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Lincoln Electric AC-225 AC Arc Welder, Transformer, 230 Volt, 40-225 Amp Output, Model# K1170

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  • Full range 40-225 Amp selector switch quickly sets the welding current and ensures a uniform arc
  • Arc welding capabilities
  • Welds a wide variety of materials including carbon, low alloy and stainless steels as well as cast iron
  • 225 Amp AC output is enough for 3/16in. (4.8mm) diameter general purpose mild steel electrodes and 5/32in. (4.0mm) sizes of other electrodes
  • 230 Volt operation with 40-225 Amp output

  • Prop 65 Warning: See Details

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  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Accessories

  • Warranty

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Product Summary

The Lincoln Electric AC-225 Compact AC Arc Welder produces an extremely smooth AC arc for welding a wide variety of materials including carbon, low alloy and stainless steels as well as cast iron. Ideal for home, farm, shop, repair and maintenance, build-up welding and light fabrication. Easy to install with attached input power cable and NEMA 6-50P plug, plus it's easy to operate: a full range 40-225 Amp selector switch quickly sets the welding current and ensures a uniform arc each and every time you weld. Smooth arc makes it easy to weld with different electrodes, including mild steel, low hydrogen, stainless steel and hardfacing electrodes.

What's Included

    (1) Lincoln Electric AC-225 AC Arc Welder, Model# K1170 Stick welder, (1) Insulated electrode holder and cable, (1) Work clamp and cable

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Built For Superior Performance

Versatility To Match Your Job

Need one welder that can do it all? The Lincoln Electric AC-225 is great for use in the shop, on the farm, or for maintenance and repair needs, and its compact size makes it mobile enough to take almost anywhere. The broad 40–225 amp range produces a smooth arc regardless of the metal you are welding. With this smooth arc, it's easy to weld with a variety of electrodes.

Durability To Go The Long Haul

The AC-225 is durable enough to handle job after job. This powerful machine is designed for 16-gauge metals and higher and is capable of welding multiple metals, including steel, cast iron and stainless steel. An insulated electrode holder and cable and a heavy-duty work clamp and cable help set this machine above the rest.

Powerful Output To Get The Work Done

The AC-225 offers an open circuit voltage of 230 Volts plus 225 Amp AC output. These features ensure an easy strike to start welding and a smooth AC arc to keep you welding. This machine is a great choice for build-up welding and light fabrication.

Easy To Use

User-Friendly Design

Whether you're a beginner or an experienced welder, the simple design of this machine makes it very easy to use. Just plug it into a 230 Volt outlet and you're ready to go. The full range amp selector switch quickly sets the welding current and ensures a uniform arc each and every time you weld.

Ready To Weld Right Out Of The Box

The AC-225 comes with everything you need to weld right out of the box. This machine includes an insulated electrode holder and cable, a heavy-duty work clamp and cable and an input cable with attached plug, making setup easier than ever.

Easy-To-Operate Amp Selector

If you're looking for versatility, this welder has it, with a full range 40–225 amp selector switch. The switch quickly sets the welding current and ensures a uniform arc each time you weld. The smooth arc also makes it easy to weld with different electrodes, including mild steel, low hydrogen, stainless steel and hard-facing electrodes.

Built To Last

Time-Tested Original

The Lincoln Electric AC-225 Stick Welder is a quality built machine that uses top-notch components to deliver lasting performance. This machine is NEMA rated, UL listed and CSA approved, so you never have to think twice about the quality you're getting.

Add The Extras

By adding a few extras you can customize performance and enhance this welder to meet your needs. The Lincoln Electric wheel kit (Item #49520, sold separately) adds easy portability throughout the shop. Additional electrodes are also available (sold separately) to match your welding needs.

Weld With Confidence

Expert Answers Are Available

Northern Tool + Equipment is here to help you succeed. Our field-trained, dedicated team of welding experts is ready to help — call or email and you'll get a prompt response.

The Lincoln Electric Advantage

The Lincoln Electric Stick Welder is built to last and perform. But to give you extra peace of mind, Lincoln Electric stands behind this product with a 3-year limited warranty.

Guaranteed Satisfaction

Shop in complete confidence, knowing that Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.

Features + Benefits

  • Full range 40-225 Amp selector switch quickly sets the welding current and ensures a uniform arc
  • Arc welding capabilities
  • Welds a wide variety of materials including carbon, low alloy and stainless steels as well as cast iron
  • 225 Amp AC output is enough for 3/16in. (4.8mm) diameter general purpose mild steel electrodes and 5/32in. (4.0mm) sizes of other electrodes
  • 230 Volt operation with 40-225 Amp output
  • Duty cycle: 20% at 225A, 25V
  • Attached input power cable and NEMA 6-50P plug for easy installation
  • Minimum 50 Amp circuit required
  • Smooth arc makes it easy to weld with different electrodes, including mild steel, low hydrogen, stainless steel and hardfacing electrodes
  • NEMA rated
  • UL listed
  • CSA approved

Key Specs

AttributeSpecification

item#

167743

Brand

Lincoln Electric

Manufacturer's Warranty

3 year limited warranty

Ship Weight

99.0 LB

Volts

230

Max. Amps

225

Power Type

AC

Multi-process

No

Max. Weld Thickness

0.25 in
AttributeSpecification

Duty Cycle

20% At 225a

Weldable Materials

Carbon, Low Alloy, Stainless Steel, Cast Iron

Min. Amps

40

Power Cord Length

6 ft

Clamp Cable Length

10 ft

Electrode Cable Length

10 ft

Product Weight

lb

Dimensions L x W x H (in.)

12.0 x 17.25 x 24.0 in

Reviews

Questions & Answers

75 Reviews This action will navigate to reviews.

Questions

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  1. What size of Generator would I need for this welder?

    1. Yup 11500 watts / 230volts=50amps.

      Helpful?

    2. needs to be able to push 50 amps for you to get all the power out the welder

      Helpful?

    3. I researched the same thing and found that anything less than 10,000 watts won't work very well. Also, its a little hard to find any generator less than 10,000 watts that has a 240v receptacle.

      Helpful?

    4. You would need a generator that would have at least 11,500 surge watts to operate this welder. You would need a 6-50R receptacle on the generator.

      Helpful?

  2. Can this welder weld aluminum?

    1. My wife's uncle welds for a living. I asked him to weld a skeg on my boat stern drive which is cast aluminum. He said he had some aluminum sticks he would try because his tig wasn't set up at the moment. Went back together like a charm. Looks factory. So yes, this welder can weld aluminum it just depends on the type I guess.

      Helpful?

    2. No.
      I tried. Small stick, low amps..... just burned holes in the aluminum. Maybe someone else knows of a trick that works, but I haven't found any success.

      Helpful?

    3. This particular welder isnt designed for aluminum welding.

      Helpful?

    4. This Lincoln welder is not recommended for welding aluminum.

      Helpful?

  3. Does this unit have a TIG option?

    1. This stick welder doesn't have a TIG option or capability. See our item# 96578.

      Helpful?

    2. It does not.

      Helpful?

  4. with a 50 amp breaker for the 225 arc welder, what size wire do I need

    1. 6 gauge but that depends on cable length from breaker. There are charts on line that give you size wire for amps at certain distances

      Helpful?

    2. Power transmission from a 50 Amp 240V breaker would require 6 gauge wire.

      Helpful?

  5. What kind of electrical service do I need for a K1170 welder?

    What kind of electrical service is needed for the Lincoln Electric AC-225 welder, model #K1170?

    1. 50 amps

      Helpful?

    2. This welder would require a 50 amp circuit.

      Helpful?

  6. What cable comming out of the machine top or bottom is the ground?

    1 answer

    1. The shorter cable with the heavy-duty clamp is the work/ground cable. The longer cable with the electrode holder is for your welding rod. You would plug the ground cable into the lower terminal on the front of the welder. Attach the ground clamp to the workpiece or a sturdy metal welding table.

      Helpful?

  7. How long are the leads that come with it ?

    1 answer

    1. The electrode cable lengths are 10 feet.

      Helpful?

  8. Will this weld aluminum

    1 answer

    1. This machine is not designed to weld aluminum.

      Helpful?

  9. can it weld an open root pass with 6010?

    1 answer

    1. The welder is 225 amp @ 20% duty cycle. The maximum it will weld with 6010 is 1/4".

      Helpful?

  10. What is the current needed for the welder? Thanks 

    1 answer

    1. The welder has an input current of 50 amps.

      Helpful?

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Warranty

Manufacturer's Warranty

3 year limited warranty