MicrOring® Seals

Sealing the Smallest Devices

Apple Rubber has earned a reputation for solving tough sealing problems associated with smaller designs. Even our competitors have recommended us for challenging microminiature applications that were beyond their capabilities. With engineering expertise and advanced manufacturing technology, Apple Rubber's capability to hold tolerances on microminiature seals is unsurpassed. In addition, Apple Rubber can develop special compounds to meet the needs of your application.

What Is a MicrOring® Seal?

As a general definition, a MicrOring® seal is any o-ring that measures less than 1 mm in either inside diameter or cross section. Apple Rubber offers MicrOring® seals in more than 2,000 sizes, ranging from the largest, with an inside diameter or cross section of .039 in. (1.0 mm), down to .008 in. (.20 mm) inside diameter and cross section.

MicrOring® seals were developed by Apple Rubber to meet the ever-increasing demand for effective seals in a wide range of miniaturized applications – from precision instruments and medical devices to aerospace and fiber optics. Today's smaller designs can present some big challenges for the design engineer, particularly the tight tolerances required for microminiature sealing applications.

microminiature composite seals

The Benefit of Micro-Miniature Composite Seals

Apple Rubber can ease installation and reduce assembly costs with a composite microminiature seal custom-engineered for your specific application. Composite seals combine the structural advantages of metal or plastic with the sealing performance of elastomers. They can provide the tighter tolerances and added finesse required in today's microminiature designs. We can develop microminiature composite seals – incorporating the seal and another component in one part instead of two – that may even simplify the design of your product.

The Leader in Micro Sealing Solutions

Apple Rubber offers the largest selection of microminiature o-ring sizes available anywhere. Plus, no other company offers more experience and expertise in custom-engineered microminiature sealing solutions. We are continually adding to our microminiature experience and have earned a reputation for solving tough sealing problems associated with smaller designs. Even our competitors have recommended us for challenging microminiature applications that were beyond their capabilities.

For more information on micro parts and seals, contact Apple Rubber today.