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D/F Machine Specialties Water Cooled Pistol Grip NC-21/HT-21: Direct Replacement for Linde/ESAB ST-21


D/F Water-Cooled Pistol Grip Model NC-21/HT-21


D/F Machine Specialties Water Cooled Pistol Grip NC-21/HT-21: Direct Replacement for Linde/ESAB ST-21

Water Cooled Pistol
Instruction Manual 163WP-
NC-21/HT-21




EURO QUICK-DISCONNECT
Water Cooled Pistol
Instruction Manual 162WP Pistol Euro
The D/F Water-Cooled pistol grip MIG gun offers a design with complete interchangability of nozzle lengths for manual MIG welding, using .030" through 7/64" diamater wires. The torch may be adapted to spot or continuous fusion welding, and is ideal for welding with 3/64" and 1/16" aluminum wire.

Very similar in design to the Linde/ESAB ST-21 but with improvements and new features, and proven to be a superior replacement alternative, the D/F Water-Cooled pistol grip MIG 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. The D/F Pistol is intended for use with all wire feeders which have provision for water cooling and will handle all types of welding wires from .035" diameter through 7/64" diameter including flux cored wire, 3/64" AL through 3/32" Aluminum wire.

To provide maximum resistance to the abuses of day to day service, the 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.

MODEL EXPLANATION

NC-21 - Normal Duty Pistol, Water-Cooled Collet Action (Slip-in Current Tip)
HT-21 - Heavy Duty Pistol, Water-Cooled Threaded Current Tip

Features
  • Water-Cooled inner body and nozzle
  • NC-21S - Optional directly cooled spot nozzle
  • Small frontal area for hard-to-reach locations
  • Nozzle length may be extended by applying either of three (3) different
    length Water-Cooled nozzle assemblies
  • Quick-disconnect available
HT-21/NC-21 SPECIFICATIONS
Current Capacity
  HT-21 Series 600 amp
  NC-21 Series 450 amp
Gun Dimensions
  Overall length with 3" nozzle 9.250"
                                      4" nozzle 10.250"
                                      5" nozzle 11.250"
  Diameter of Body Housing 1.625"
Recommended Wire Diameter Range
  HT-21 .030"-.062" Hard
   .045-7/64" Cored
  NC-21 .030"-.062" Hard
   3/64"-3/32" Aluminum
Weight (approx.) without services 2.5 lbs.
Cooling Required 5 pints/min.

Ordering Information (Hard & Cored Wire)
Water Cooled Pistol Grip NC-21/HT-21 - 11231, 11236, 11251, 11233, 11237, 11252, 11234, 11238, 11253,
, 11261, 11266, 11271, 11262, 11267, 11272, 11263, 11268, 11273

Ordering Information (Aluminum Wire)
Water Cooled Pistol Grip NC-21 - 11286, 11287, 11288,
11305, 11306, 11307





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