MR4P - CK Worldwide MR4P Clear Pyrex Cup for Micro Torch

CK Worldwide MR4P Pyrex Cup for Micro Torch

The CK Worldwide MR4P is a specialized replacement cup designed exclusively for the CK Worldwide Micro Torch series, specifically the MR70 and MR140 TIG torches. In the demanding field of precision welding, visibility is paramount. Standard ceramic cups can obstruct the welder's view, especially when working on minute components, inside small diameter piping, or within recessed corners. The MR4P solves this problem by utilizing high-temperature Pyrex glass, providing a clear line of sight to the tungsten electrode and the weld puddle from virtually any angle.

This clear glass cup features a 1/4-inch orifice and a length of approximately 0.6 inches, making it compact enough to maneuver into the tightest spaces while still providing adequate shielding gas coverage for the tungsten. The use of Pyrex material ensures that the cup can withstand the thermal shock and high heat associated with TIG welding, although it is specifically rated for the amperage ranges typical of the Micro Torch series (up to 70A or 140A depending on the torch head used). It is an essential consumable for industries requiring high-precision fabrication, such as aerospace, electronics, jewelry repair, and medical device manufacturing.

The MR4P is a direct replacement part for the glass cup found in the CK Worldwide AK-MR Accessory Kit. Over time, glass cups can become clouded with fume residue or damaged due to accidental impact. Having a replacement MR4P on hand ensures that your micro-welding operations can continue without interruption. At Josef Gas, we understand the importance of having the right tools for specialized applications. This cup is sold individually, allowing you to replace only what you need without purchasing a full accessory kit.

Key Features:

• Enhanced Visibility: The transparent glass construction eliminates blind spots, allowing for precise electrode placement and puddle control.


• Precision Fit: Engineered to fit securely on CK MR70 and MR140 Micro Torch heads.


• Compact Design: Small form factor allows access to difficult-to-reach joints and confined areas.


• Quality Material: Made from durable Pyrex to resist heat and thermal cycling.