CD Cupped Head Weld Pins are capacitor-discharge insulation weld pins designed for attaching blanket insulation to ducts, boilers, ovens, tanks, and hot or cold-process equipment.
Unlike conventional weld pins, the insulation is positioned first, the cupped head pin is pushed through the insulation, and then welded directly to the base material. This installation method provides fast, reliable insulation retention while minimizing exposed fastening hardware.
CD Cupped Head Weld Pins provide an efficient insulation fastening solution for commercial and industrial insulation systems. Their weld-through design simplifies installation by allowing the insulation to be positioned before the pin is welded to the base material.
Manufactured from galvanized low-carbon steel, these insulation weld pins are available in standard and mini cup head styles with multiple lengths to accommodate a wide range of insulation thicknesses.
The table below outlines the weight-to-length ratios for both the Standard and Mini cupped head configurations across all catalog lengths.
| Standard Length (L) | Standard CHP Weight (Lbs/1,000 pcs) | Mini CHP Weight (Lbs/1,000 pcs) |
|---|---|---|
| 0.375" | 9 | 6 |
| 0.5" | 10 | 7 |
| 0.625" | 11 | 8 |
| 0.75" | 11 | 8 |
| 0.875" | 11 | 8 |
| 1" | 11 | 8 |
| 1.125" | 12 | 9 |
| 1.25" | 12 | 9 |
| 1.375" | 12 | 9 |
| 1.5" | 12 | 9 |
| 1.625" | 12 | 9 |
| 1.75" | 13 | 9 |
| 1.875" | 13 | 10 |
| 2" | 13 | 10 |
| 2.125" | 14 | 11 |
| 2.25" | 14 | 11 |
| 2.5" | 14 | 11 |
| 2.625" | 15 | 12 |
| 2.875" | 15 | 12 |
| 3" | 16 | 13 |
| 3.125" | 16 | 13 |
| 3.5" | 17 | 14 |
| 4" | 18 | 15 |
| 4.125" | 18 | 15 |
| 4.5" | 19 | 16 |
| 5" | 20 | 17 |
| 5.5" | 21 | 18 |
| 6" | 23 | 19 |
CD Cupped Head Weld Pins provide an efficient insulation fastening solution for applications where insulation is installed before the welding operation. Their design simplifies installation while maintaining dependable insulation retention.
The cupped head design allows the pin to pass through insulation before welding, eliminating the need to pre-install weld pins on the base material.
Manufactured specifically for the CD stud welding process, these pins produce clean welds on sheet metal and plate with minimal backside marking.
Available with both standard and mini cupped heads, allowing selection based on insulation type, coverage area, and installation requirements.
Both the weld pin and cupped head washer are galvanized to provide improved durability in industrial insulation environments.
Offered in a broad range of standard lengths to accommodate varying insulation thicknesses across commercial and industrial applications.
Compatible with dedicated chuck assemblies and optional paper washers supplied either separately or pre-installed for production efficiency.
For help choosing the right cup head diameter, selecting appropriate pin lengths for your insulation depth, or coordinating bulk paper washer installations, please contact your Complete Stud Welding representative.