How to Set Up a Stud Gun for Welding Headed Concrete Anchors/Shear Connectors (Threaded Chuck)

WELDER BRANDS:

This setup works for Truweld, Proweld, Midwest Fasteners, Image and Nelson NS20 stud welder heavy and medium duty guns.

ITEMS NEEDED:

Items Needed for Stud Gun to Weld Thru Deck

STEP 1: Screw the Arc Gun Connector Stud into gun.  The shorter end of the stud is screwed into the gun.

Heavy Duty Arc Gun with Connector Stud

STEP 2: Slide the gun cable eyelet onto the Arc Gun Connector Stud.  Attach the Headed Anchor Chuck into Arc Gun Connector Stud.  Use 2 crescent wrenches to hold the Headed Anchor Chuck when tightening.  Make sure the eyelet stays centered or vertical when it is tightened so the eyelet won’t hang up on the legs later.

STEP 3: Screw the Weld Thru Deck Ferrule Grip onto the Weld Thru Deck Foot Assembly.  Choosing the size of the Weld Thru Deck Ferrule Grip depends on the type of ferrule you are using:

 Ferrule Ferrule Grip Size
3/8" Heavy Duty Ferrules or 1/2" Flat Ferrules 1/2"
1/2" Heavy Duty Ferrules or 5/8" Flat Ferrules 5/8"
5/8" Heavy Duty Ferrules or 3/4" Flat Ferrules 3/4"
3/4" Weld Thru Deck Ferrules or 7/8" Flat Ferrules 7/8"
7/8" Weld Thru Deck Ferrules or 1" Flat Ferrules 1"

Weld Thru Deck Foot Assembly with Weld Thru Deck Ferrule Grip

STEP 4: Screw the Arc Legs into the Weld Thru Deck Foot Assembly.  Leave the screws loose until you make your final plunge adjustment.   

Weld Thru Deck Foot Assembly and Arc Legs

STEP 5: Place a stud in the Headed Anchor Chuck.

Arc Stud Gun with Headed Chuck and Stud

STEP 6: Slide the foot assembly into the gun so that a couple inches of the stud stick out past the Weld Thru Deck Ferrule Grip.  Make sure the flat side of the legs are towards the set screw on the gun.  Tighten the screws on the gun that hold the legs. 

Headed Concrete Anchor and Shear Connector Arc Stud Gun Set Up

STEP 7: Adjust the Foot Assembly so that the stud is centered in the middle of the Weld Thru Deck Ferrule Grip.  Tighten the Arc Leg screws in the foot assembly.

Arc Stud Gun with Stud Centered in Weld Thru Deck Ferrule Grip

STEP 8: Put a ferrule on the end of the stud and make the plunge adjustment.  The plunge is the amount the stud that sticks out past the ferrule grip not including the flux ball. 

  • Loosen the leg screws in the gun.
  • Adjust the plunge.
  • Tighten the leg screws in the gun.

Stud Diameter

Plate, Direct to Beam or Angle Plunge

Weld Thru Deck Plunge

3/8” & 1/2

3/16” – 1/4"

3/8”

5/8” & 3/4"

1/4” – 5/16”

3/8”

7/8” & 1”

5/16” – 3/8”

3/8”

Weld Thru Deck Recommendation on Determining the Right Plunge:

Grab another stud and slide the foot assembly so that the amount of the stud sticking out past the ferrule grip is equal to the head of the 2nd stud (3/8”).

Plunge Definition for Stud Welding Thru Deck