This air-cooled machine torch positive contact assembly is readily adaptable to automatic welding for multi-process wire welding in the automotive manufacturing, pressure vessels/heavy plate, or job shop fabrication industries, particularly when code quality work is required. It is furnished completely assembled and ready for installation. Both versions of the single arc contact nozzle assembly--the MAC - Machine, Air-Cooled, Slip-in Tip and MAT - Machine, Air-Cooled, Threaded Tip models--have the feature of individual replaceable service connections to add to the durability and long life of the barrel assemblies for boom mounting – your top choice for neat, uncluttered semiautomatic work stations. This arrangement is readily adaptable to Dedicated or Automatic Welding applications such as the Lincoln NA-3, NA-4, NA-5 & NA-5R Automatic wire feeders, and Power Feed 10M wire feeders. Direct mounting is accomplished by the D/F Machine Specialties Lincoln Electric NA3, NA4, NA5, NA5R Feeder Adapter (DF part #16880), Power Feed 10M wire feeder adapter (DF part #13480 - Lincoln Power Feed 10, LF72, LF74), and Miller series, ESAB, Euro Connector and Tweco #4 power pins, utilizing interconnections to the welding head or wire drive. Shielding gas is accommodated by a horizontal gas hose connection.

The D/F air-cooled automatic machine torch #12705 is a superior replacement alternative for the Lincoln Electric NA-5 & NA5R feeders with K148A & K148B torches. The D/F Machine Automatic Air-Cooled Positive Contact assemblies are designed to provide long trouble-free service. With the various models available, a contact assembly selection may be made to suit individual torch requirements.

The Direct Mount Air-Cooled Contact Assembly can accommodate three (3) different Air-Cooled Nozzle Assemblies. This arrangement is readily adaptable to Dedicated or Automatic Welding applications such as the Lincoln NA-3, NA-4 & NA-5 Automatic wire feeders.
The A/C Torches can run the complete line of D/F standard size C122 DHP contact tips and the complete line of D/F standard size CrZr (chromium zirconium) long-life contact tips, as well as any custom current tip configuration you may need. .030" (.8mm), .035" (.9mm), .045" (1.2mm), .052" (1.4mm), 1/16" (1.6mm), 3/64" (1.2mm), 5/64" (2mm), 3/32" (2.4mm), 1/8" (3.2mm) and other diameters.

These Automatic Machine welding assemblies are designated by Torch Models. The Model NCM (slip-in Contact Tip) has a current capacity range of 400 amps in CO2 and 275 amps in argon shielding. These accommodate slip-in current tips fastened by a collet action nut. The wire diameter range with hard wire is .030"-1/16", cored wire .035"-1/8", and aluminum wire range of .035"-3/32".

The Torch Model HTM (Threaded Contact Tip) has a current capacity range of 400 amps in CO2 and 275 amps in argon shielding.. Rating will be contingent on the combination of current tip and shielding gas to be used. The Model HTM employs threaded CrZr (chromium zirconium copper) current tips and will accommodate .030" - 1/16" hard wire, .035" – 1/8" cored wire and 3/64" - 3/32" aluminum wires.

In some instances C122 DHP is adequate, but for stainless steel and stiff, high column strength or abrasive wires such as Flux cored / Metal cored, CrZr is the correct choice. D/F Machine Specialties can increase several key characteristics creating a higher-quality consumable with increased conductivity, even higher softening temperature and improved hardness. This means a reduction in "arc start failures" and increased tip life. Copper chromium zirconium (CuCrZr) contact tips increase productivity.

Each D/F Automatic Welding Torch head is fully assembled and ready to install. In order to make the installation complete, the code number, wire size, make/model Automated Welding System (Thermadyne Thermal Arc Wire Feeders, Lincoln wire feeders, Miller wire feeders, Linde/ESAB wire feeders), and inlet as needed must be specified when ordering. If special welding tools or accessories other than those listed previously are required, please consult with the factory. Get the Right Feeder Adapter Connection to Fit Your "MIG" Wire Feeder.

MODEL EXPLANATION

MAC - Machine, Air-Cooled, Collet Action (Slip-In Current Tip)
MAT - Machine, Air-Cooled, Threaded Current Tip

This air-cooled short machine torch single arc positive contact nozzle assembly is readily adaptable to automatic welding. It is furnished completely assembled and ready for installation. Both the MAC - Machine, Air-Cooled, Slip-in Tip and MAT - Machine, Air-Cooled, Threaded Tip models have the feature of individual replaceable service connections to add to the durability and long life of the barrel assemblies for single arc welding at high currents. This arrangement is readily adaptable to Dedicated or Automatic Welding applications with the Power Feed 10A Controller (K2362-1) built on the enduring and trusted foundation of the NA-5 controller to be used with  the Lincoln NA-3, NA-4, NA-5R, LN-10 & DH-10 Automatic wire feeders, Boom Wire Feeders; 10M single or dual industrial wire feeders (K2314-1 Power Feed 10M Single Boom Model, Power Feed 10M Dual Boom Model K2316-1), and Bench Wire Feeders; 10M single or dual industrial wire feeders (K2230-1 Power Feed 10M Single Bench Model, K2234-1 Power Feed 10M Dual Bench Model). Direct mounting is accomplished by utilizing interconnections to the welding head or wire drive. Shielding gas is accommodated by a horizontal connection. The contact nozzle assembly has numerous variations for different nozzle configurations with different sized gas cups and contact tips for getting into difficult or hard to reach areas.

MODEL EXPLANATION

MAC - Machine, Air-Cooled, Collet Action (Slip-In Current Tip)
MAT - Machine, Air-Cooled, Threaded Current Tip