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Cobra MX MIG Welding Gun

Cobra® MX- Push-Pull Gooseneck


  • Models:             Air Cooled 1/4" Tip: (P/Ns below), Air Cooled 3/8" Tip: (P/Ns below)
  • Models:             Water Cooled 1/4" Tip: (P/Ns below), Water Cooled 3/8" Tip: (P/Ns below)
  • Models:             Compatible: MK, Lincoln, Miller, Fronius, ESAB and Euro (P/Ns below)
  • Lengths:           15 ft, 25 ft, 35 ft and 50 ft lengths.

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, Fronius, ESAB and Euro wire feeders. Water and Air Cooled models: 15 ft, 25 ft, 35 ft and 50 ft lengths. (P/Ns below)

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
Duty Cycle 100%
Rated Output
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, ESAB 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

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 14 Pin
Part Numbers
Fronius 9 Pin
Part Numbers
Euro 7 Pin
Classic Cup 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
Classic Cup 1/4" Tip

276-815
276-825
276-835
276-850

278-815
278-825
278-835
278-850
Classic Cup 1/4" Tip

280-815
280-825
280-835
280-850

282-815
282-825
282-835
282-850
Classic Cup 1/4" Tip

284-815
284-825
284-835
284-850

286-815
286-825
286-835
286-850
Classic Cup 1/4" Tip

298-815
298-825
298-835
298-850

299-815
299-825
299-835
299-850
Part Numbers
MK
Part Numbers
Lincoln 7 Pin
Part Numbers
Miller 14 Pin
Part Numbers
Fronius 9 Pin
Part Numbers
Euro 7 Pin
MAX Cup 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
MAX Cup 3/8" Tip

277-815
277-825
277-835
277-850

279-815
279-825
279-835
279-850
MAX Cup 3/8" Tip

281-815
281-825
281-835
281-850

283-815
283-825
283-835
283-850
MAX Cup 3/8" Tip

285-815
285-825
285-835
285-850

287-815
287-825
287-835
287-850
MAX Cup 3/8" Tip

300-815
300-825
300-835
300-850

301-815
301-825
301-835
301-850

Consumables Overview

  • Snake Skin (Standard)
  • 931-0110 15ft
  • 931-0122 25ft
  • 931-0132 35ft
  • 931-0123 50ft

  • Consumables
  • Barrels and Gas Cups
  • Contact Tips
  • Tip extenders
    (P/Ns below)
Air Cooled / Water Cooled
Air Cooled and Water Cooled Consumables
  • More Consumables
  • Barrel Liners
  • Drive rolls
  • Tips for Hard Wire
  • Wire Type and Diameter
    (P/Ns below)


Consumables
More Consumables

Consumables - 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 Adapter 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
Barrels
Cobra MX - Classic A/W
Tip Extenders
P/N 621-0017
Stackable up to 5
Adapters
Not Applicable
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
Barrels
Cobra MX - MAX A/W
Tip Extenders
P/N 621-0423
Stackable up to 5
Adapters
Not Applicable
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 Tip Extender 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
Barrels
Cobra MX - Classic A/W
Tip Extender
Tip Extenders
Not Applicable
Brass Adapter
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
Barrels
Cobra MX - Classic A/W
Tip Extender
Tip Extenders
Not Applicable
Brass Adapter
Adapters
P/N 431-1630
Contact Tips
3/8 inch diameter

Gas Cups

Finned Cup

More Consumables

Barrel Liners: Aluminum
Teflon
931-0137

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

Read More

wire
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)

Drive Rolls

Additional Enhancements For Aluminum Capabilities

Drive Roll Kits:

  • Knurled (Standard)
  • Insulated Grooved (Opt)
  • Insulated Knurled (Opt)

  • 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

Read more

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

Hoses

MK Lincoln Miller Fronius Euro
MK Classic Connections to wire feeder

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

---

---
MK Classic Connections to wire feeder

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
MK Classic Connections to wire feeder

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
MK Classic Connections to wire feeder

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
MK Classic Connections to wire feeder

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

Cables

MK Lincoln Miller Fronius Euro

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

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

Conduits

MK Lincoln Miller Fronius Euro

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

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

Owners Manuals - MK and Compatible Guns

Click on images of each Manual to open PDF.

MANUAL MK MANUAL Lincoln 7 Pin MANUAL Miller 14 Pin MANUAL Fronius 9 Pin MANUAL Euro 7 Pin

Related Products

Cobramatic Wire Feeder
Contact Tips
Gas Cups
Drive Rolls
  • Cobra Welding Systems and Orbital Welding Equipment
  • mkproducts.com            800 787 9707

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