Disc Spring stacks for Holding Down Device

In modern railway crossing systems, maintaining stability and minimizing dynamic impact during train passage is critical. A hydraulic-mechanical holding-down device plays a key role in achieving an uniform deflection of the wing rail and the swing nose of the crossing.

The key element of holding down device is disc springs stack, which provides a reliable mechanical preload. Disk springs package generates a consistent contact force that is transmitted via a cross beam, pressing the swing nose firmly onto the sliding plates of the crossing. Before switching begins, a hydraulic cylinder compresses disc springs, releasing the cross beam and enabling movement of the swing nose.

The holding-down device is typically mounted on the wing rail, forming a compact and robust assembly directly at the crossing.

During train passage, holding down device ensures that the wing rail and the swing nose deflect uniformly under load.

Key Benefits of Disc Springs in Holding-Down Devices 

• Consistent Preload Force: Ensuring continuous contact
• Shock Reduction: Effectively reducing dynamic loads in the crossing transition zone
• Enhanced Protection: Providing additional protection by preventing wheel impact at the tip of the swing nose.

OPTIMUM Disc Spring has been manufacturing disc springs for holding-down devices since 1984.

Need expert advice? Contact our engineer today for customize solutions at jc@optimum-spring.com !