High Performance Rail vibration reduction Fastening System

Model CM-CGⅢ High Performance Rail vibration reduction Fastening System employs a single-layer steel plate confined compression structure. Its microcellular polyurethane under-rail pad delivers superior creep and fatigue resistance. With a single-layer vibration-damping design, the system achieves a Z-vibration reduction of 6–8 dB over conventional dampers. The low-profile assembly (approx. 40–45 mm total height) enables direct replacement of standard medium-damping fastenings while reducing track bed height variants.

Product Details

PRODUCT OVERVIEW

The CM-CGⅢ high-elasticity track fastening system comprises Type Ⅲ spring clips, gauge blocks, screw spikes, spring washers, flat washers, under-rail elastic pads, eccentric gauge-adjusting sleeves, a single steel backing plate, under-plate elastic pads, coupling pads, pre-embedded sleeves, and sleepers. Supplementary components include shim plates of varied thicknesses and special-number gauge blocks for rail height and gauge fine-tuning.

PRODUCT FEATURES

Single-layer steel plate confined compression structure – Fewer components than conventional medium-damping fastenings for metro systems, ensuring reliable assembly, straightforward installation, and simplified maintenance.

Microcellular polyurethane under-plate pad – Exhibits outstanding creep resistance and fatigue life under cyclic loading.

Toothed engagement between steel plate and eccentric sleeve – Provides lateral force restraint while enabling gauge adjustment from +14 to –18 mm; up to ±10 mm adjustment is achievable without changing gauge blocks.

Boss on anchor-hole top face of steel plate – Prevents debris ingress into friction interfaces, preserving long-term durability and system stability in harsh environments.

Flanged boss around bottom anchor holes – Directs transmitted lateral forces primarily into shear on anchor bolts, minimising bending moments from excessive lateral loads.

Single-layer compression damping configuration – The microcellular polyurethane pad’s favourable stiffness and dynamic-to-static ratio deliver marked vibration attenuation, reducing Z-vibration levels by 6–8 dB relative to standard products. The streamlined design optimises interface compatibility and ensures consistent long-term performance. With a total assembled height of approximately 40–45 mm, the system reduces track bed height specifications and permits direct interchangeability with existing medium-damping fastenings, facilitating retrofit and standardisation.

Quality Assurance

Changmei Technology has designed, manufactured, and exported Buried Tram Track Fastening System for over 20 years. Our products are installed on more than 10 tram lines across major Chinese cities like Shenzhen, Wuxi.

Before leaving our factory, Tram rail fastener will be tested strictly according to standard requirements . For customers who require more, we carry out type tests at our inhouse testing centre.

Custom Mould Design & Manufacturing

– In-House, Start to Finish

Our Mould Engineering Department operates a full digital workshop equipped with more than 20 CNC machines, including machining centres, spark eroders, and wire cutters. This allows us to design and manufacture a wide range of moulds for the rail transit industry – injection moulding, rubber, SMC, and specialised types such as auto-core-pulling bush moulds.

Annual output stands at 300 sets of moulds and tooling.

If your project calls for a non-standard shape for Elastic Ballast Mat, a special material, or a unique production feature, we have the equipment and the experience to deliver.