Overview
The CK Worldwide 2A8 13N12 are premium alumina TIG cups designed for standard collet bodies on CK Worldwide 2 series torches. CK Worldwide 2A8 13N12 cups are manufactured from high-strength alumina oxide and are size #8 with a 1/2″ (0.50″) orifice. This pack contains 10 individual cups, making it an economical choice for shops and field welders who need reliable consumables in stock.
Key Features
- High-strength alumina material — exceptional impact and heat resistance
- Standard length design — compatible with 2 series standard collet bodies (2CBxx)
- 1/2″ orifice (#8 size) — directs shielding gas efficiently toward the weld puddle
- Spatter resistance — alumina resists spatter buildup for longer cup life
- Superior electrical insulation — high dielectric properties for safe operation
- Pack of 10 — economical bulk purchase for shops and production welding
Technical Specifications
- Part Number: 2A8 (alternate: 13N12)
- Cup Size: #8
- Orifice Diameter: 1/2″ (0.50″ / 12.7 mm)
- Cup Type: Standard length
- Material: Alumina oxide (high-strength ceramic)
- Series: 2 Series (standard collet body)
- Thread Pattern: 5/16″ x 24
- Quantity per Package: 10 cups
- Color: White/tan (alumina)
Typical Applications
CK Worldwide 2A8 13N12 cups are recommended for most general TIG welding operations on 2 series torches, including:
- Steel and stainless steel welding
- Aluminum welding (moderate applications)
- Mild steel fabrication and repair
- General production and field welding
- Maintenance and backup stock for shops
Not recommended for use in confined spaces due to the standard cup length.
Compatibility & Replacements
Compatible With
- CK Worldwide 2 series torches: Models 9, 20, 100, 110, 130, 200, 230FL2L, CKM230, CWH230, WCM230
- Weldcraft, Lincoln, WeldTec, and Profax equivalent 2 series torches with standard collet bodies
- Standard collet bodies: 2CB series (2CB20, 2CB40, 2CB116, 2CB332, 2CB418)
- GTAW (gas tungsten arc welding) process
Replaces / Drop-In Replacement For
- Weldcraft 13N12 (#8 standard alumina cup)
- Lincoln Electric equivalent alumina #8 TIG cups for 2 series
- Generic / aftermarket #8 alumina cups for 2 series torches
Works With
- All CK Worldwide 2 series standard (non-gas-lens) collet bodies
- 2 series tungsten electrode sizes (typically #4, #5, #6, #7, #8 tungsten)
- Standard shielding gases: argon, argon-helium, argon-COâ‚‚
- Weldcraft, Lincoln, and other compatible 2 series torches





