Vibration-resistant quarter-turn locks for a wide range of applications

With this vibration-resistant quarter turn, EMKA offers a robust lock suitable for a wide range of applications. Whether in rail transport, machine building and plant engineering, or industrial cabinet design, the cost-effective, patented locking solution meets the most demanding specifications required by the ingress protection class IP69K and is characterised by a long service life. Users also benefit from the lock's simple operation.

It is recognised that electronic equipment requires protection determined by the surrounding environment once installed and how it is used. Therefore, the housing and the locking mechanisms are of special importance, and in particular, almost all machines, systems, and vehicles are subject to perpetual vibrations and oscillations.

This puts high demands on housing and locking mechanisms. The company's vibration-resistant quarter turn delivers maximum protection for these demanding applications, securing doors and flaps throughout its service life.

The unique design of the quarter turn's housing and extra elements supply maximum protection and prevent the housing from coming apart. Because of the permanent internal spring-loaded and interlocking mechanism – in combination with two positive end positions – the lock noticeably engages in the final locking positions. This 'engagement' can also be heard acoustically by the operator. At the same time, the operation is extremely simple – a 90° turn causes the latch inside the cabinet to engage behind the door frame, thus locking the door or flap. The vibration-resistant quarter turn provides similar protection as the classic safety quarter turn but is easier to use. Because the locking mechanism is less complex, the new locking solution is also a more cost-effective variant.

The company has patented the vibration-resistant quarter turn and subjected it to a wide range of tests so that users may benefit from reliable locking performance over the lock's full service life. All vibration and shock resistance requirements according to DIN EN 61373 are reliably fulfilled.

Also, the new locking solution meets the needs of the highest ingress protection class, IP69K, making it excellent for use in robust and mobile outdoor applications, such as the railway sector, road vehicles, or agricultural machinery. Internal electronic components are safely protected from dust and water during high-pressure and steam jet cleaning.

The vibration-resistant quarter-turn lock is manufactured using the zinc die-casting process and is available in two surface finishes and several actuation variants.