Microminiature o-rings, or “MicrOrings®”, are any o-ring that measures less than 1 mm in either inside diameter or cross section. Today’s smaller designs can present some big challenges for the design engineer, particularly the tight tolerances required for microminiature sealing applications. 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.
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. To put that into perspective, our smallest o-ring’s inner diameter is about a quarter of the size of a poppy seed.
How are Microminiature Seals used?
Microminiature o-rings and seals are used in a variety of applications, and are commonly found in the medical, instrumentation, and fluidics industries. Among their applications, uses for micrOrings® include sealing microsensors, microfluidic connectors, and micro housings.
The Benefit of Microminiature 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 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.
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.For more information on micro parts and seals, contact Apple Rubber today.