EDGE Large Diameter (LD) Series TIG Cups
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Find the right solution for your setup
Need Help Choosing the Right Setup?
Choosing the right equipment depends on your application, material, and welding conditions.
- For more control and precision → use smaller components and tighter setups
- For more coverage and larger welds → use larger setups and higher gas flow
- For high-heat applications (like aluminum) → use materials designed to handle increased temperatures
- For tight spaces → use more compact profiles
If you’re unsure what you need, start with a complete setup or kit and build from there.
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EDGE LD Series – Large Diameter Pyrex TIG Cups
The EDGE Large Diameter (LD) Series TIG cups are engineered for welders who demand maximum gas coverage, superior arc visibility, and cleaner welds on critical materials. Hand-made in the USA from premium borosilicate (Pyrex) glass, the LD Series delivers the laminar gas flow performance EDGE is known for — scaled up for large diameter applications.
Key Benefits
- Engineered Gas Coverage – Large diameter design maximizes shielding gas coverage over the weld puddle, reducing oxidation and contamination on reactive metals.
- Greater Stick Out – Extended tungsten stick out gives you improved access to tight joints and better arc visibility without sacrificing gas coverage.
- Improved Visibility – Clear Pyrex glass lets you see the weld puddle clearly, giving you full control over your arc.
- Cleaner Welds – Laminar gas flow eliminates turbulence, delivering consistent, contamination-free shielding from start to finish.
- Built for Real-World Welding – Heat treated and precision fit for reliable performance in demanding shop and field environments.
Available Sizes
- #10, #12, #15, #18, #21
Diffuser Options
- 1/16, 3/32, 1/8, 5/32
What Makes EDGE Different
- Hand-made in the USA from borosilicate (Pyrex) glass
- Integrated diffuser technology for true laminar flow
- Precision fit — size-labeled for easy identification
- Heat treated for durability and longevity
Torch Compatibility
Compatible with WP9, WP20, WP25, WP17, WP18, and WP26 series torches when used with the appropriate large diameter gas lens.
Recommended Applications
- Stainless steel
- Titanium
- Inconel
- Nickel-based alloys
- Aluminum
Setup Guidelines
For best results, use with a quality gas lens body and set your argon flow rate based on cup size and application. Larger diameter cups may require slightly higher flow rates to maintain full laminar coverage.
Note: Always inspect your cup for chips or cracks before use. Handle with care — glass cups are precision instruments, not consumables.
EDGE Gas Lens Large Diameter Adapter and O-Rings sold separately.