Item: 3" Cup Head Capacitor Discharge Weld Pins With Paper Insulating Washers

Head Material: Galvanized steel
Head Edge: Beveled edge washer to prevent cutting of insulation material.
Head Diameter (B): 30mm
Pin Material: Galvanized steel
Pin Diameter: 2.7mm
Pin Length: 3" / 76.2mm

Photo

Cup head capacitor discharge weld pins consist of a round washer and a nail.

Washer material

Washer

size (B)

Nail

material

Nail

dia (A)

Pin

length (L)

Galvanized steel 

25mm,

30mm,

38mm,

Galvanized steel,

Copper coated steel

2mm,

2.7mm,

3.0mm,

3.4mm

3/8" - 12"

Note 

The washer and nail size could be customized .

Beveled edge cap

Prevents tearing of duct liner

Faster welds

Forged diamond point design creates more electrical resistance for faster welds.

Better plating

Zinc and copper plating exceeds SMACNA standards and gives a more professional appearance.

Reduced down time

Consistent point quality reduces frequency of machine adjustments.

Stronger welds

Hardened steel point assures positive electrical contact for complete sheet to pin fusion.

Applied with standard equipment

Easily applied with automatic pin welder or most standard hand held or hopper fed resistance welders.

Item: Cup Head Capacitor Discharge Weld Pins

Application: used for aluminum foil faced insulation materials

Step:

1. Hanging the insulation
2. Directly weld the cup head insulation pins through the insulation materials

Recommended for

Pin length before welding

1/2" insulation(all densities)

12.67mm

1" insulation(1-1/2"ib density)

17.63mm

1" foam

25.55mm

1" insulation(3ib densities)

23.72mm

1-1/2" insulation(all densities)

28.42mm

2" insulation(1-1/2"-2" ib density)

37.95mm

2" insulation(3ib densities)

48.77mm

3" insulation(all densities)

69.85mm

4" insulation(all densities)

95.00mm

1. 2000 pcs / 3000 pcs/ 5000 pcs per carton