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Product Introduction
The various types of railway fastener systems meet the needs of different railway scenarios. Among them, the gusset plate structure of the KPO system enables it to flexibly adapt to rails and sleepers of different specifications during the upgrading and reconstruction of railway lines; the Nabla system significantly reduces the noise of train operation by optimizing the materials and structures of shrapnel and pads, and has obvious advantages in the underground tunnel environment of urban subways;
Nabla type fastener system
Structural composition: usually composed of Nabla elastic clips and connecting plates, etc., used to connect rails to sleepers.
Features:
Stable buckle pressure: When the nut is tightened, the special shape of the Nabla spring can generate a dynamic and stable toe load on the rail, which can effectively fix the rail and prevent its longitudinal and lateral movement.
Good shock absorption performance: The design can effectively absorb and disperse vibration and impact forces in railway operations, reduce wear on track structures and train components, reduce noise, and also help improve passenger riding comfort.
| Items | Specification | |
| 1 | Fastening system | Nabla Rail fastening system |
| 2 | Rail type(kg/m) | 50 |
| 3 | Track Gauge(m) | 1435m |
| 4 | Axle Load(Ton) | 12.5-23 |
| 5 | Running speed(km/h) | ≤120 |
| 6 | Clamping Force(kN) | ≥20 |
| 7 | Pull out Force(kN) | ≥60 |
KPO type fastener system
Structural composition: The KPO rail fastening system for concrete sleepers is also called the K-type rail fastening system, which is generally composed of a base plate, a K-type gusset plate, bolts, nuts, sleeper screws, plastic sleeves and spring washers.
Features:
Applicable to many types of tracks: Suitable for a variety of tracks, such as UIC54, UIC60, 50KG, 60KG, S49, etc.
Strong clamping force and long life: Compared with ordinary fastening systems, it has better clamping force, can effectively fix the rails, and has a higher fatigue life, which can reduce replacement and maintenance costs.
| KPO fastening system | ||||||
| KPO clamp | Screw spike | HS bolt | Hex nut | spring washer | Base plate | |
| Pieces required | 4 | 8 | 4 | 4 | 8 | 2 |
| Material | Q235 | Grade 4.6: Q235 Grade 5.6: 35# Grade 8.8: 45# | Grade4.6: Q235 Grade5.6: 35# Grade8.8: 45# | Grade 5: 35# Grade 8: 45# | 65Mn | Casting iron QT500-7, QT450-10, or forging low carbon steel or high carbon steel; |
| Type; | KPO3, KPO6, KPO9 | M24X150mm M24 x160mm M24 x180mm | HS26, HS32 | As ordered | As ordered | UIC54,UIC60, 50kg rail, 60kg rail,S49 in ordered size |
In the construction of railway infrastructure, fastener systems are essential to ensure the smooth operation of trains. GNEE RAIL focuses on this key area, and its product line includes a series of products such as spikes, bolts and nuts, and spring clips of various specifications. By introducing advanced manufacturing processes and strict quality inspections, our products excel in vibration resistance and corrosion resistance. We pay special attention to the environmental friendliness of our products, and all material selection and production processes comply with international environmental standards. With a global service network, we can respond quickly to customer needs and provide professional technical support and supply guarantees.
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