Our rotary air seals are designed to replace rope packing on rotary air locks and is maintenance-free due to its self-adjusting rotary air lock design. Custom seal housing types are available in aluminum and stainless steel. The seals can be rebuilt with inexpensive repair kits. All of Cinchseal's mechanical seals, including our rotary shaft seals and rotary air lock seals, are a cut above the competition. We're experienced rotary air lock manufacturers that you can rely on!