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This compression type rail damping fastener mainly utilizes the compressive deformation of rubber between rail supporting plate and lower base plate to obtain elasticity by vulcanization; it is highly safe and reliable. With used in the sections with medium requirements for vibration reduction. Its damping effect is about 5～9dB.
QY-Y-1 rail damping fastener
QY-Y-2 rail damping fastener
QY-Y-3 rail damping fastener
QY-Y-4 rail damping fastener
QY-Y-7 rail damping fastener
QY-Y-8 rail damping fastener
Rail transit is an effective way to solve traffic congestion in large and medium-sized cities at home, and it has many advantages such as fast, convenient, efficient and low consumption, but while it brings conveniences to the people, it also generates the problem of vibration noise, causing non-negligible influence to the urban environment. Hence, to reduce the vibration and noise impact of rail transit is one of the key issues for improving the living quality of the residents along rail lines, guaranteeing safe operation of the rail transit system and enabling the sustainable development of rail transit.
| Product type | Product type | Product name | Vibration damping effect (dB) |
| Medium vibration reduction | Track vibration damping fastener | Compression type vibration damping fastener | 5～9 |
| Mixed type vibration damping fastener | 7～13 | ||
| High vibration reduction |
Suspension type vibration damping fastener | 10～15 | |
| Raft board vibration isolation devices | Single-layer raft board vibration isolation device | 15～20 | |
| Special vibration reduction | Double-layer raft board vibration isolation device | ＞20 |
This hybrid rail vibration damper mainly utilizes the compression and shear deformation of rubber between upper and lower iron backing plates to obtain elasticity. With damping effect about 7～13dB, it is used in the sections with medium requirement for vibration reduction.
 QY-J-1 rail damping fastener |
 QY-J-2 rail damping fastener |
 QY-J-3 rail damping fastener |
 QY-J-4 rail damping fastener |
QY-F type rail damping fastener mainly utilizes the shear deformation of rubber to obtain elasticity while steel rail is suspended with rubber block and fixing device. It is applicable to the sections with high requirement for vibration reduction.
QY-F type rail damping fastener utilizes damping parts to clamp and suspend steel rail that is allowed to have significant vertical displacement. This type of product has good damping effect and low height of installation to improve the stability of train. With damping effect of 12～15 dB, it is subject to fatigue tests for over 3 million times.
Mainly used in the sections subject to vibration over 15dB over the standard level or other sections with special requirements for the environment, such as operating room of hospital, music hall, precision instrument factory and protected historic site etc.
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