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TECHNICAL SPECIFICATIONS
Item
Description
Power Supply
120V, 20A, 50/60 Hz, Single Phase
230V, 36A, 50/60 Hz, Single Phase
No-Load Voltage
69V DC
Output Range - MIG
40 to 90A DC with 120V Input Power
40 to 200A DC with 230V Input Power
Output Range
– STICK
10 to 70A DC with 120V Input Power
10 to 180A DC with 230V Input Power
Output Range
– TIG
10 to 90A DC with 120V Input Power
10 to 180A DC with 230V Input Power
Duty Cycle-MIG
40% @ 90A with 120V Input Power
20% @ 200A with 230V Input Power
Duty Cycle-STICK
40% @ 70A with 120V Input Power
20% @ 180A with 230V Input Power
Duty Cycle-TIG
40% @ 90A with 120V Input Power
20% @ 180A with 230V Input Power
Suggested Wire
Steel, Stainless Steel, Aluminum (With Optional Spool Gun)
Suggested Wire Diameter
.023, .030; .035
Suggested Electrodes
E6013, E7014, E7018, Stainless Steel
Electrode Diameter
1/16 inch to 5/32 inch
Dimensions
21” x 9 ½” x 16 ¼”
Weight
35 lbs.
DESCRIPTION
The Cornwell MMWMP242DVI is an inverter-powered, dual voltage, wire feed welder for flux core and
MIG welding plus a DC stick welder. It features a Synergic LCD control that allows the operator to select
process and weld settings. It comes complete with a regulator and gas hose for easy connection for MIG
welding plus a weld cable and electrode holder for DC stick welding. Directly connect this unit to a 230V
NEMA 6-50R receptacle or attach the supplied 120V adapter cord to operate off of 120V power. It is
designed to weld materials as thin as 24 gauge all the way up to 3/8" in a single pass. The Spool Gun
(B model optional purchase item
MMWEZFSG2
) is capable of welding aluminum with 4" spools of
aluminum wire. This unit can also perform lift start DC TIG welding (B model optional purchase item
MMWACTT2V
) on steel and stainless-steel materials. Argon shielding gas and a TIG filler rod would also
be required for TIG welding.
This unit is intended to be used on a 50-amp 230V AC circuit or 120V, 20A AC circuit, without the use of
an extension cord. If an extension cord is necessary for your application, use the appropriate size and
length of extension cord that will handle 50 amps the entire length of the extension. We highly
recommend talking with a qualified electrician for cord size recommendations. This unit is supplied with a
NEMA Class 6-50P plug and will require a NEMA Class 6-50R receptacle.
Do not remove the power
plug
. Use the supplied 120V adapter when running off 120V power.
Inverter-based welding provides a smoother arc, increases efficiency, and provides better control than
non-inverter welding machines.
