The range of applications is therefore very broad: from railway and commercial vehicle construction to wind turbines, mechanical and industrial plant engineering, and outdoor and offshore applications. To cover this range, EMKA offers rotary compression seals in three systems and around 190 standard variants. Depending on the model, many other special variants are also available. “Our experience shows that three models in particular are in high demand, as they reliably meet the typical requirements of many applications,” explains Thomas Dettmar, Head of Product Management at EMKA.
Three locking mechanisms, three requirement profiles
. Depending on the project, different requirements take precedence. In many applications, the insert type is already predetermined, for example, by end-customer requirements or established operating and service procedures. For this requirement, the short-shaft compression lock is a proven standard: robust and easy to install. In other cases, the depth of construction and manufacturing tolerances determine the selection. If the door and frame come from different manufacturers or if the sealing compression needs to be readjusted, adjustment options are crucial, also to reduce the number of variants. The compression lock with a groove insert and long shaft provides the necessary adjustment range and facilitates adjusting the latch height. And where it is necessary to check multiple locking points during operation, the optical status indicator becomes a safety and maintenance factor. Especially in applications where safety is paramount, such as rail transport or wind turbines, it must be immediately obvious whether a lock is properly closed. The compression seal with optical status and rotation direction indicator meets these requirements and therefore allows for quick and unambiguous visual inspection during operation and maintenance.
All three variants are made of die-cast zinc and coated with black powder paint, a proven standard for robust applications. This allows for specific consideration of different design, assembly, and operating requirements, and provides designers with clear guidance for selecting the appropriate compression seal.
