|D/F Water-Cooled MIG Pistol Grip Gun Model NC-21/HT-21|
D/F Water-Cooled Semi-Automatic MIG Hand-Held Pistol Grip Gun Model NC-21/HT-21 - Push MIG Gun
With more than 44 years of aluminum and steel trailer welding, D/F Machine Specialties Water-Cooled Semi Automatic MIG Pistol Grip Gun Model NC-21/HT-21 has been push welding aluminum trailers.
The D/F water-cooled MIG semi-automatic pistol grip gun offers a design with complete interchangeability of nozzle lengths for manual MIG welding of aluminum and stainless steel, using .030" through 1/8" diameter wire. The torch may be adapted to spot or continuous fusion welding, and is ideal for welding with 3/64" and 1/16" AL & SS wire.
Remember the great Linde ST-5 torch (part no. 46V34) that was used exclusively for gas metal arc (MIG) spot welding of aluminum and hard wires? Very similar in design to the Linde ST-5 and ESAB ST-21 (part no. 995950) but with improvements and new features, and proven to be a superior replacement alternative, the D/F water-cooled handheld pistol grip MIG push gun is a rugged all purpose, water-cooled, manual MIG welding torch designed to operate at welding currents up to 600 amperes continuous duty using all types of shielding gases. The torch utilizes a pistol grip design for convenient start-stop welding control and easy handling, and its in-line type construction allows all service lines to enter through the torch barrel. Like the ESAB ST-21, the D/F Pistol Gun is easily connected to the ESAB MIG-35 wire feeder. The DF Pistol is also intended for use with all wire feeders that have provision for water cooling and will handle all types of welding wire from .035" diameter through 1/8" diameter flux cored wire, and 3/64" AL through 3/32" Aluminum wire.
To provide maximum resistance to the abuses of day to day service, the pistol grip torch is of heavy duty construction with all metal parts well insulated from current carrying members. The in-line body and pistol grip handle allow the D/F Pistol to be used in a variety of applications with easy maneuverability and comfortable operation. To facilitate maneuverability, all service lines are internally connected to the torch body and exit from the rear of the torch barrel. The torch can use either threaded contact tips or slip-in contact tubes which are secured with a collet nut supplied with the torch. The contact tip can be quickly and easily replaced by unscrewing the metal nozzle and collet nut, and removing the tip. Six water-cooled metal nozzles with different lengths and different I.D./O.D. are available for use with the D/F Pistol for continuous fusion welding and for spot welding applications. The water-cooling requirements for the D/F Pistol are described below.
Naturally, manufacturers and fabricators have taken a number of measures over the years to combat heat exposure. While intense heat can certainly be irritating for the welder, the impact is more than an issue of comfort. There are significant safety, liability and productivity considerations as well. Reflective heat when welding is very hot. The reflective heat and weld puddle that is present when MIG welding aluminum is even hotter. The D/F Machine Specialties Heat Shield for the MIG Pistol gun directs the heat away from the hands, significantly reducing temperatures. Unlike other heat shields, the D/F heat shield has a dual wall design. The outside wall reflects the heat and provides and insulator from the inside wall. It also protects the hands and the torch from weld spatter. What’s more, the heat shield is comfortable and lightweight, so it can be mounted on a D/F Pistol gun without sacrificing performance. You won’t even notice the heat shield is there.
Each D/F gun is fully assembled and ready to install. In order to make the installation complete, the code number, wire size, make/model (Lincoln wire feeders, Miller wire feeders, Tweco wire feeders, ESAB wire feeders, & EURO Quick-Disconnect 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.
Comparing Push Guns, Push-Pull Guns, and Spool Guns
Push Gun Benefits
Spool Gun Limitations
Push-Pull Gun Limitations
Push Welding vs. Push-Pull Welding
Pushing Aluminum Wire