Posted to News on 9th Jul 2025, 11:30
Locking technology able to withstand shocks and vibrations
Whether in railway transport, machinery and plant engineering, or industrial cabinet construction, locks must reliably prevent unintended opening even under continuous stress. EMKA's vibration-resistant quarter turn was specifically designed for such demanding applications.
This cost-effective, patented locking solution meets high sealing standards and boasts a long service life.
Electronic devices must be protected from external influences depending on where they are used and installed. Therefore, the quality of the enclosure and especially the locking system is crucial. Highest demands are placed on the housing and locking mechanism when machines, plants, and vehicles are exposed to constant vibrations and oscillations. EMKA's vibration-resistant quarter turn offers maximum protection for these challenging environments and reliably secures doors and flaps throughout their entire service life.
Cost-effective, secure, and easy to operate
The specially designed quarter turn and additional functional elements ensure maximum protection against unintentional loosening. Constant spring pressure on the internal mechanism, combined with two positive-locking end positions, ensures secure latching, which is also audible.
Operation is quite simple: a simple 90 turn engages the locking cam behind the inner door frame, reliably locking the door or flap. This vibration-resistant quarter turn provides the same level of protection as a traditional safety quarter turn while offering enhanced ease of use. Thanks to the lower complexity of the locking mechanism, this locking solution is also the more cost-effective option.
Tested, certified and patented
EMKA has patented its vibration-resistant quarter turn and subjected it to extensive testing. Users benefit from consistently high locking performance throughout the product's entire service life. All requirements for vibration and shock resistance according to DIN EN 61373 are fully and reliably met. The stainless steel version also complies with the fire protection standard DIN EN 45545-3 with an E60 classification, making it especially suitable for use in railway vehicles.
Moreover, this locking solution meets all criteria for deployment in rugged and mobile outdoor applications - such as in railway systems, road vehicles or agricultural machinery - in accordance with protection class IP66. Internal electronic components are effectively shielded from ingress of dust and water, even under high-pressure and steam-jet cleaning.
An upgrade to the highest ingress protection rating, IP69K, is currently in development. The vibration-resistant quarter-turn is available in both zinc die-cast and stainless steel, with two surface finishes and a variety of actuation options.
