Lincoln Electric AC-225 User manual

Recommended General Options
Wheel Kit, Carbon Arc Welding Torch
The AC-225 compact stick welder has a broad welding amperage range of 40-225
amps. It 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.
Metals 16 gauge and heavier can be easily arc welded with the AC-225.
Applications include: repair and maintenance welding, fabricating or modifying
equipment, building tools or fixtures, build-up welding on worn parts or dies, and
hardfacing new or worn parts for longer service life. Also for cutting and piercing
holes in steel.
Order
K1170 AC-225 230/1/60
K1290 AC-225 220/1/50
K1170-4 AC-225 230/1/60
Unit Includes
• Insulated electrode holder and cable
• Heavy duty work clamp and cable
• Lightweight headshield with lenses
• Sample pack of electrodes
• Helpful Welder’s Guide
• Input cable with attached plug
• Welding Helmet
K1170-4 also includes
• Wheel Kit
• Welding Gloves
AC-225
Publication E2.30 2/05
www.lincolnelectric.com
STICK WELDERS
Processes
Stick
Description
Output Input
AC
50
Hz
60
Hz
TECHNICAL SPECIFICATIONS
Product Product Input Rated Output Input Current Output Dimensions Net Weight
Name Number Power Current/Voltage/Duty Cycle @ Rated Output Range H x W x D lbs (kg)
AC-225 K1170 230/1/60 225A/25V/20%(1) 50A 40-225 Amps 109
K1170-4 Max OCV: 79 (49.5)
24.0 x 17.25 x 12.0
50-250 Amps (610 x 438 x 305) 108
AC-225 K1290 220/1/50 225A/25V/15% 63A Max OCV: 76 (49.0)
• Easy to install. Comes with attached 6 ft. (1.8m) input power
cable and NEMA 6-50P plug.
• Easy to operate. Full range 40-225 amp selector switch
quickly sets the welding current and ensures a uniform arc each
and every time you weld.
• Traditional design provides long-life and low cost operation.
• Compact size allows for easy storage and handling.
• Smooth arc makes it easy to weld with different electrodes,
including mild steel, low hydrogen, stainless steel and
hardfacing electrodes.
• 225 amp AC output is enough for 3/16” (4.8mm) diameter
general purpose mild steel electrodes and 5/32” (4.0mm)
sizes of other electrodes.
• Optional carbon arc welding torch for brazing and soldering
applications, for heating rusty nuts for easier removal, and for
bending or straightening metal.
• Fan-cooled for extra thermal protection.
• Vermin resistant mesh bottom keeps rodents and pests out of
the case.
• Powder paint finish for increased durability.
• NEMA rated (60 Hz only).
• UL listed and CSA approved (60 Hz only).
• 3 year warranty on parts and labor.
• Manufactured under a quality system certified to ISO 9001
requirements.
Advantage Lincoln
(1) Except 70 amp setting which can be used continuously for 1 hour.

Fleetweld® 180 (6011)
7018AC
1/4” STEEL AND UP
THE LINCOLN ELECTRIC COMPANY
22801 St. Clair Ave., Cleveland, OH 44117-1199 • 216.481.8100 • www.lincolnelectric.com
CUSTOMER ASSISTANCE POLICY
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed
their expectations guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular
purpose, with respect to such information or ions. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information
in our possession at that time. Lincoln Electric is not in a position to warrant advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or
advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility
of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements.
Subject to Change — This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.
GENERAL OPTIONS
Wheel Kit
Includes axle, two wheels, and
assembly hardware. Can be
installed in minutes.
Order K761
Carbon Arc Welding Torch
Increases versatility of the welder. Some
applications include: welding aluminum and
copper alloys, heating, bending and straight-
ening, brazing and soldering. Convenient
thumb control. Rated 100A at 40V.
Order K1876-1
Carbons
For use with Carbon Arc Welding Torch.
Order KP1905-1 for 1/4" Diameter.
Order KP1905-2 for 5/16" Diameter.
RECOMMENDED OPTIONS
A CLOSER LOOK
Important Safety Note:
This welder is not recommended in electrically hazardous conditions such as: damp locations, while wearing wet clothing, on metal
structures, or in cramped positions. Use a DC stick or wire welder.
1/16” TO 7/64” STEEL
1/8” TO 3/16” STEEL
3/32”
ELECTRODE
DIAMETER
3/32” - 1/8”
ELECTRODE
DIAMETER
1/8” - 5/32”
ELECTRODE
DIAMETER
Fleetweld® 37 (6013)
Fleetweld® 47 (7014)
7018AC
JET-LH® 78 (7018 H4R)
Fleetweld® 180 (6011)
Fleetweld® 37 (6013)
Fleetweld® 47 (7014)
7018AC
JET-LH® 78 (7018 H4R)
Fleetweld® 180 (6011)
Medium
Plate
Thickness
Heavy
Thick
STICK ELECTRODE SELECTION CHART