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RADNOR™ Back cap
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Airgas Part #:RAD64005643
Manufacturer Part #:57Y02
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$4.27
Each
$4.27
/Each
Item Details
- The Radnor 64005643 (Industry Part Number 57Y02) is a long-style TIG back cap designed for Gas Tungsten Arc Welding (GTAW) torches. It functions as a mechanical seal and electrode securing mechanism, specifically engineered for the 3-Series (Large) TIG torch family to provide a gas-tight seal and electrical insulation during high-amperage operations.
Features
- Full-Length Tungsten Accommodation: Allows for the use of full 7-inch (175mm) tungsten electrodes to minimize waste
- Electrode Tensioning: Compresses the collet against the collet body to create a friction lock preventing electrode slippage
- Atmospheric Seal: Integrated O-ring creates a gas-tight seal to direct shielding gas (Argon/Helium) to the weld pool
- Electrical Insulation: Plastic body provides a dielectric barrier between the energized electrode and the operator
- Heat Resistance: Material composition designed to withstand radiant heat and high-amperage operations
- Threaded Design: Allows for secure installation and removal to minimize downtime
Specifications
- Manufacturer: RADNOR™ (Airgas Exclusive Brand)
- Manufacturer Part Number (MPN): 57Y02
- Airgas Part Number: RAD64005643
- UPC Code: 639890056431
- Style/Length: Long
- Physical Length: 4.75 inches (120.65 mm)
- Thread Specification: 3/8-24 UNF
- Weight: 0.06 lbs - 0.09 lbs
- Body Material: High-temperature impact-resistant phenolic plastic/polymer
- Internal Threading: Brass or copper alloy insert
- Sealing Component: High-grade rubber O-ring (Industry standard 98W18)
- Torch Series Compatibility: 3-Series (Large)
- Air-Cooled Torch Compatibility: WP-17, WP-17V, WP-26, WP-26V, PTA-17, PTA-26
- Water-Cooled Torch Compatibility: WP-18, WP-18V, WP-18SP, WP-18SC, PTA-18, W-350, W-400
- Amperage Range: 150 Amps - 400 Amps
- Duty Cycle: 100%
- Polarity: DC Straight Polarity
- Regulatory Compliance: California Prop 65
Applications
- General Fabrication: Open-access welding where torch length is not restricted
- Heavy Duty Welding: High-amperage applications requiring 18 and 26 series torches
- Long-Run Operations: Production environments utilizing full-length electrodes to reduce replacement frequency
- Aerospace Manufacturing
- Pressure Vessel Fabrication
- Automotive Manufacturing
- Structural Fabrication
Product Attributes
Accessory Type
» Back capTorch Amperage
» 150 A» 160 A
» 175 A
» 180 A
» 200 A
» 220 A
» 230 A
» 250 A
» 300 A
» 310 A
» 320 A
» 350 A
Torch Model
» HW-17» HW-18
» HW-26
» WP-17
» WP-18
» WP-26
