Cobra MX MIG Welding Gun

Cobra® MX- Push-Pull Gooseneck

Models: Air Cooled and Water Cooled (P/Ns below)
Models: Compatible: MK, Lincoln, Miller and Fronius (P/Ns below)
Lengths: 15 ft, 25 ft, 35 ft and 50 ft lengths

Price: Cobra MX - Air Cooled - Standard 25 ft

Description

The Cobra MX is a direct replacement for the Cobra Gold with a gas valve in the gun and with all of MK Products’ latest features and manufacturing techniques. This gun features our famous push-pull gooseneck design and weighs only 2 lb 5 oz. The patented Cobra MX is ready to fit all your aluminum and hard wire welding needs.

Compatibility:

Direct plug-in connectors available for Lincoln, Miller and Fronius wire feeders. Water and Air Cooled models: 15 ft, 25 ft, 35 ft and 50 ft lengths. (P/Ns below)

How to Buy

FEATURES

Models: Classic cup w/ 1/4” tip or MAX cup w/ 3/8” tip
Cobra® fix mount barrel with high temp barrel insulator
Protected fingertip speed control in the handle
Uses the original Cobra® rear trigger location
Covered wire feed mechanism
Covered lever wire release in the handle
Wire feed speed 800 IPM

Wire Type and Diameter:
Solid and Hard wire .030” - .045” (0.8 mm - 1.1 mm)
Aluminum and Cored wire: .030” - 1/16” (0.8 mm - 1.6 mm)
Snake Skin (Standard)
931-0110 15ft, 931-0122 25ft, 931-0132 35ft, 931-0123 50ft

Duty Cycle 100%

Rated Output

Rated Output determined by the gun having an Air Cooled (A/C) or Water Cooled (W/C) barrel.

Cobra MX A/C is 175 Amps
Cobra MX A/C is 200 Amps
Cobra MX W/C is 225 Amps
Cobra MX W/C is 250 Amps

Options / Compatibility

Optional Ultra Flex power cable offers more durability and less strain when welding. (Part Numbers below)
Capable of Aluminum Welding as well as Hard Wire Welding (Steel, stainless steel and flux core steel wires)

Plug-in direct compatibility with MK, Lincoln, Miller, Fronius and Euro systems. (Part Numbers below)
Available in both Water Cooled and Air Cooled models
Available in Lengths: 15 ft, 25 ft, 35 ft and 50 ft

Ultra Flex Power Cable

Compatibility Part Numbers

Plug-in direct Compatibility Back end connectors (Lincoln, Miller, Fronius)

Part Numbers - MK and Compatible Guns

Compatible guns used with Lincoln Power Feed 25M (model K2536-4) require a kit for adaptability. Call factory for details.

Part Numbers MK	Part Numbers Lincoln 7 Pin	Part Numbers Miller 10 Pin	Part Numbers Fronius 9 Pin
Cobra MX 1/4" Tip 15ft AC: 266-815 25ft AC: 266-825 35ft AC: 266-835 50ft AC: 266-850 15ft WC: 262-815 25ft WC: 262-825 35ft WC: 262-835 50ft WC: 262-850	Cobra MX 1/4" Tip 276-815 276-825 276-835 276-850 278-815 278-825 278-835 278-850	Cobra MX 1/4" Tip 280-815 280-825 280-835 280-850 282-815 282-825 282-835 282-850	Cobra MX 1/4" Tip 284-815 284-825 284-835 284-850 286-815 286-825 286-835 286-850

Part Numbers MK	Part Numbers Lincoln 7 Pin	Part Numbers Miller 10 Pin	Part Numbers Fronius 9 Pin
Cobra MX-HD 3/8" Tip 15ft AC: 267-815 25ft AC: 267-825 35ft AC: 267-835 50ft AC: 267-850 15ft WC: 263-815 25ft WC: 263-825 35ft WC: 263-835 50ft WC: 263-850	Cobra MX-HD 3/8" Tip 277-815 277-825 277-835 277-850 279-815 279-825 279-835 279-850	Cobra MX-HD 3/8" Tip 281-815 281-825 281-835 281-850 283-815 283-825 283-835 283-850	Cobra MX-HD 3/8" Tip 285-815 285-825 285-835 285-850 287-815 287-825 287-835 287-850

Owners Manuals - MK and Compatible Guns

MANUAL MK Compatible	MANUAL Lincoln 7 Pin	MANUAL Miller 10 Pin	MANUAL Fronius 9 Pin

Consumables

Gas Cups

1/4 inch Contact Tips

3/8 inch Contact Tips

Spring Loaded Tips

Tip Extenders and Adapters

Barrel Liners: Aluminum

Teflon
931-0137

Barrel Liners: Hard Wire Spiral Steel Liner
615-0343
615-0258
615-0259

Drive Rolls

Additional Enhancements For Aluminum Capabilities

Drive Roll Kits:

Knurled (Standard)
Insulated Grooved (Option)
Insulated Knurled (Option)

Drive roll installation / removal tool (931-0100)

For P/Ns Read More

Contact Tips for Hard Wire

Steel, Stainless and
Flux Core Steel wire

Cobra MX (1/4” Tips)
.023”(0.6 mm) 621-0328-25
.030”(0.8 mm) 621-0326-25
.040”(1.0 mm) 621-0077-25
.045”(1.1 mm) 621-0002-25

Cobra MX (3/8” Tips)
.030”(0.8 mm) 621-0396-25
.035”(0.9 mm) 621-0397-25
.045”(1.1 mm) 621-0398-25

Cups and Tips Connectivity - Extend Your Reach and Save Barrel Tip Threads

Not only can tip extenders extend the reach of your gun, but they also protect the threaded end of your barrel from damage. Some extenders are stackable and some are not – see below to determine.

Barrel	Tip Extender	Contact Tip	Gas Cup

Connectivity Purpose: Take a Cobra MX - Classic cup and extend the tip, still using a 1/4 inch tip and a classic cup.
Barrels Cobra MX - Classic A/W	Tip Extenders P/N 621-0017 Stackable up to 5	Contact Tips 1/4 inch diameter	Gas Cups Classic Cup

Connectivity Purpose: Take a Cobra MX - MAX cup and extend the tip, still using a 3/8 inch tip and a MAX cup.
Barrels Cobra MX - MAX A/W	Tip Extenders P/N 621-0423 Stackable up to 5	Contact Tips 3/8 inch diameter	Gas Cups MAX Cup

Convert to a “beefier” tip & cup configuration

Adapters allow you to change the output rating on your guns by changing the contact tip and gas cup configuration to a “beefier” tip & cup configuration.

Barrel	Adapter	Contact Tip	Gas Cup

Connectivity Purpose: Take a Cobra MX - Classic cup and use an Adapter to convert it to use a 3/8 inch tip and a MAX cup.
Barrels Cobra MX - Classic A/W	Adapters P/N 003-2210	Contact Tips 3/8 inch diameter	Gas Cups MAX Cup

Connectivity Purpose: Take a Cobra MX - Classic cup and use an Adapter to convert it to use a 3/8 inch tip and a FINNED cup.
Barrels Cobra MX - Classic A/W	Adapters P/N 431-1630	Contact Tips 3/8 inch diameter	Gas Cups Finned Cup

Gun Lead Assembly Components - MK AND COMPATIBLE GUNS

U.S. Customary Units / Metric: 15 ft/4.6m, 25 ft/7.6m, 35 ft/10.7m, 50 ft/15.2m

MK	Lincoln	Miller	Fronius

Hoses

MK	Lincoln	Miller	Fronius
Gas Hose 552-0242-15 552-0242-25 552-0242-35 552-0242-50 Water Hose MK 552-0243-15 552-0243-25 552-0243-35 552-0243-50 --- ---	Gas Hose 552-0241-15 552-0241-25 552-0241-35 552-0241-50 Water Hose Blue 552-0239-15 552-0239-25 552-0239-35 552-0239-50 Water Hose Red 552-0209 all lengths	Gas Hose 552-0241-15 552-0241-25 552-0241-35 552-0241-50 Water Hose Blue 552-0239-15 552-0239-25 552-0239-35 552-0239-50 Water Hose Red 552-0209 all lengths	Gas Hose 552-0241-15 552-0241-25 552-0241-35 552-0241-50 Water Hose Blue 552-0238-15 552-0238-25 552-0238-35 552-0238-50 Water Hose Red 552-0211 all lengths

Cables

MK	Lincoln	Miller	Fronius
Control Cable 005-0690 005-0691 005-0740 005-0692 Power Cable (AC) 843-0630-15 843-0630-25 843-0630-35 843-0630-50 Power Cable (WC) 005-0387-15 005-0387-25 005-0387-35 005-0387-50 Power Cable Ultra Flex (AC only) 843-0580-15 843-0580-25 843-0580-35 843-0580-50	Control Cable 005-0690 005-0691 005-0740 005-0692 Power Cable (AC) 843-0640-15 843-0640-25 843-0640-35 843-0640-50 Power Cable (WC) 005-0388-15 005-0388-25 005-0388-35 005-0388-50 Power Cable Ultra Flex (AC only) 843-0715-15 843-0715-25 843-0715-35 843-0715-50	Control Cable 005-0380-15 005-0380-25 005-0380-35 005-0380-50 Power Cable (AC) 843-0640-15 843-0640-25 843-0640-35 843-0640-50 Power Cable (WC) 005-0388-15 005-0388-25 005-0388-35 005-0388-50 Power Cable Ultra Flex (AC only) 843-0715-15 843-0715-25 843-0715-35 843-0715-50	Control Cable 005-0381-15 005-0381-25 005-0381-35 005-0381-50 Power Cable (AC) 843-0640-15 843-0640-25 843-0640-35 843-0640-50 Power Cable (WC) 005-0388-15 005-0388-25 005-0388-35 005-0388-50 Power Cable Ultra Flex (AC only) 843-0715-15 843-0715-25 843-0715-35 843-0715-50

Conduits

MK	Lincoln	Miller	Fronius
Aluminum Welding Only - Conduit 615-0601-15 615-0601-25 615-0601-35 615-0601-50 Hard Wire Welding Only Flat Spiral Steel - Conduit 615-0208 615-0216 615-0219 615-0218	Aluminum Welding Only - Conduit 615-0620-15 615-0620-25 615-0620-35 615-0620-50 Hard Wire Welding Only Flat Spiral Steel - Conduit 615-0621-15 615-0621-25 615-0621-35 615-0621-50	Aluminum Welding Only - Conduit 615-0620-15 615-0620-25 615-0620-35 615-0620-50 Hard Wire Welding Only Flat Spiral Steel - Conduit 615-0621-15 615-0621-25 615-0621-35 615-0621-50	Aluminum Welding Only - Conduit 615-0620-15 615-0620-25 615-0620-35 615-0620-50 Hard Wire Welding Only Flat Spiral Steel - Conduit 615-0621-15 615-0621-25 615-0621-35 615-0621-50