Our Welding Cups Look a Little Different.

Don’t get us wrong, we’re fans of the pink cups, too. We simply provide an alternative to what’s out there by producing welding cups made from glass – enabling you to see your weld as you go.

EDGE Welding Cups Pyrex Recommendations


EDGE 1/16 Diffusers do not use above 80 amp (DC) 

GL920, GL1718, CB920. CB1718 (P4-10)

*We recommend DC only, 180 amp unless using pulse settings.

Can be used with any size and type electrode.

*Best used with metals such as Stainless steel, Titanium and Inconel.

*Aluminum based material should use with #10 or #12 in shorter runs

*We do not recommend walking the cup with Pyrex glass cup.  (This will cause premature failure)

GL920-P12, GL920-P15 AND GL920-18

*We recommend DC only, 180 amp unless using pulse settings.

*Best used with metals such as: Stainless steel, Titanium, Inconel,Nickel based & thin aluminum   based.

*Recommended use with 1/16, 1/8 and  3/32   (2.4) electrode.

*The tungsten can be extended up to 3” out in controlled environment  for clearance.

*We do not recommend walking the Pyrex glass cup.  (This will cause premature failure.)

EDGE Quartz for aluminum we still recommend DC, but can be used at Higher Temperature ratings 

edge custom welding cups image

Made from highly-durable laboratory glass


Double O-ring for a gas-tight seal


Works with your existing gas lens


EDGE Welding Cups are made in the USA


With over 25 years of glassblowing experience, our products are guaranteed to withstand the toughest jobs and environments.

If we don’t have a standard cup in production that meets your needs, we can create a custom cup for your application.

Reliability & Durability

Edge Welding Cups are designed to withstand the harshest environments and treatment.

Fast & Easy Assembly

One advantage with Edge Welding Cups is the speed and ease in which you can assemble your welding torch setup.

Fast & Easy Disassembly

Disassembly is just as quick and easy, allowing you to switch cups, as needed, with minimal downtime between welds.

Corey Gerrick

Every welder has said to himself at one time or another, “I wish I could see what I was welding – while I’m welding!” It takes tremendous practice and concentration to develop the senses that compensate while using traditional ceramic welding cups.

I was very pleased to discover EDGE welding cups. They are exactly what welders need to learn better and faster while practicing their skill. Especially useful for those hard to see angles that make a job extra challenging. EDGE welding cups are a valuable tool for any welder. Edge has always proved excellent customer service and they are always willing to work on providing a product that will fit any specific application that you may have.

Corey GerrickZero Lag Performance

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