By Published On: April 11, 2015Categories: News0 Comments

Traditional elastic O-Rings have long been a source of frustration throughout steel mills, mining operations and other heavy industries. The rings twist, rubber band, roll and stretch. Installation turns into an exercise in manual dexterity, and yet they’re still never quite right. This results in early failure and equipment downtime.

System Seals set out to change that when it developed the 261 Mill-Duty Static Seal with a unique square geometry that stabilizes the seal in the groove. Stability is reinforced by the ring’s NBR or Polyurethane materials, which naturally resist abrasion and extrusion.

The ring is so robust and stable that it even eliminates the need for a backup ring. Customers who have upgraded to the 261 are astonished by the ease of installation and maintenance-free performance.

Eliminate rubber-banding, rolling and extrusion with a Mill-Duty 261 Static Seal in sizes up to 2100mm. Contact System Seals to learn how this high-performance product can work in conjunction with your seal systems.

For more information on the 261 Static Seal visit the System Seals Product Page or contact a System Seals specialist by calling 216.220.1800.


System Seals is an international research-based seal manufacturer that works in close collaboration with OEMs and maintenance-and-repair customers. The company’s Cleveland-based engineers use state-of-the-art testing and design tools to identify and overcome weaknesses in stock seals, as they develop ways that multiple seals can be optimized together as a system. The company serves a wide variety of industries, including metal processing, mining, forging, oil & gas, cylinders and cylinder repair, injection molding, mobile hydraulics, hydraulic presses, pulp and paper, wind energy, compressors, valves and instruments. For more information visit