Skip to Main Content

8-0540 - Thermal Dynamics 8-0540 Buna-N O-Ring (Pack of 5)

Packaging: pack of 5
$10.59/EA $31.95/pack of 5 only $6.39/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Genuine Thermal Dynamics Sealing Solutions


The Thermal Dynamics 8-0540 O-Ring is a vital replacement component designed to maintain the integrity of your plasma cutting system. Sold in a convenient pack of five, these O-rings are manufactured from Buna-N (Nitrile rubber), a material renowned in the industrial sector for its excellent mechanical properties and resistance to various fluids. In plasma cutting applications, maintaining a hermetic seal within the torch body is essential for safety and performance. A compromised O-ring can lead to gas leaks, pressure drops, and ultimately, poor cut quality or torch failure.



This specific O-ring features precise dimensions with an inner diameter of 1-3/16 inches and a cross-sectional width of 1/16 inch. These exact tolerances ensure a snug fit within compatible Thermal Dynamics torch heads and leads. Buna-N is specifically chosen for this application because it resists permanent indentation (compression set) and withstands the thermal cycling inherent in welding and cutting environments. It provides a reliable barrier against gas escape, ensuring that the plasma gas flows directly to the arc zone without waste or turbulence.



Routine maintenance of your plasma torch should always include the inspection of O-rings and seals. Over time, rubber components can dry out, crack, or flatten, compromising the seal. By keeping a pack of Thermal Dynamics 8-0540 O-rings on hand, operators can quickly address sealing issues during consumable changes, minimizing downtime. Trusting genuine OEM parts like these ensures that your equipment operates within the manufacturer's specified parameters, protecting your investment and ensuring consistent, high-quality cuts.



Whether you are performing a scheduled overhaul or a quick field repair, these O-rings are the standard for reliability in Thermal Dynamics systems. Their resistance to oil and water also makes them suitable for shop environments where exposure to contaminants is possible.

Additional Information
Material:Buna-N (Nitrile)
Inner Diameter:1-3/16 inch
Width:1/16 inch
Product Type:O-Ring
Compatible Brand:Thermal Dynamics