The rail fastening system is an important part of the railroad track structure composed of various rail fasteners (OTM materials).such as rail clip,rial pad,rail anchor,railway gauge rod,railroad tie plate etc. Its main function is to firmly fix the rails on the sleepers or track plates to ensure the stability of the rails.
Common Rail Fastening Systems
SKL3/SKL12/SKL14 rail fastening system
SKL rail fastening systems (SKL3, SKL12, SKL14 ) are known for their excellent fatigue resistance and stability and are widely used in European railway systems. It applies to high-speed railway and urban rail transit.
| Part name | Quantity | Type | Material | Finish | Remark |
|---|---|---|---|---|---|
| SKL tension clip | 2 | Dia. 13mm | 60Si2CrA, 38Si7 | Plain oiled, color painting, or the other required ones. | Hardness: 42-47HRC |
| Fatiguetest: When the clip spring deflection reaches 9.1mm and the swingdeflection is 1.42mm, the fatigue life will be 5 millions cycles withoutbreaking. | |||||
| Standard: DIN17221, GB/T1222 | |||||
| Ss35 screw spike | 2 | M24×150mm | Grade 4.6: Q235 | Plain oiled, black oxide, galvanized, hot dip galvanized, Dacromet and sherardized | Standard: ISO898-1, UIC864-1 and NF F500-50 |
| M24 ×160mm | Grade 5.6: 35# | ||||
| M24×180mm | Grade 8.8: 45# | ||||
| Plain washer | 2 | Uls7 | Q235 | Standard: EN10025, EN10139 | |
| Plastic dowel | 2 | For different sizes of screw spike | HDPE, Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other color | For insert into concrete sleeper |
| Guide plate | 2 | UIC54, UIC60, 50kg rail, 60kg rail, and other sizes as ordered | Reinforced Nylon 66 (PA66) | Different designs are available. Different designs are available. | |
| Rail pad | 1 | UIC54,UIC60, and size as ordered | EVA, or rubber |
E Clip Rail Fastening System
The E-type fastening system is one of the most widely used railway fastening systems, used primarily for concrete sleepers. It is widely used in ordinary railways and heavy-load railways and is suitable for standard tracks of high-speed railways.
| Part name | E clip | Shoulder | Rail pad | Insulator | |||||
| Quantity | 2 | 2 | 1 | 2 | |||||
| Type | Dia. 16mmDia. 18mmDia. 20mm | UIC54,UIC60, 115RE,50kg rail, 60kg rail,BS80lbs,BS100lbs and size as customer required. | |||||||
| Material | 60Si2MnA, 60Si2CrA,55SiMn | QT500-7 QT450-10 | HDPE, EVA, or rubber | Reinforced Nylon 66 (PA66) | |||||
| Finish | Plain oiled, color painting, or the other custom finish | Plain oiled, color painting | Black or other colors | Black, blue, yellow, green or other colors | |||||
KPO Rail Fastening System
The KPO fastening system is a wedge-shaped fastening commonly used on wooden and steel sleepers, applicable to ordinary railways, light rails, and low-speed railways.
| Part name | Quantity | Type | Material | Finish | Remark |
|---|---|---|---|---|---|
| KPO clip | 2 | KPO3, KPO6, KPO9 | Q235 | Plain oiled | Standard: DIN5906 |
| HS bolt | 4 | HS26, HS32 | Grade4.6: Q235 | Plain oiled, black oxide, galvanized, hot dip galvanized | Diameter: 22mm or 24mm. |
| Grade5.6: 35# | Length: 55mm, 65mm, 75mm, 90mm | ||||
| Grade8.8: 45# | Standard: UIC864-2 | ||||
| Hex nut | 2 | As ordered | Grade 5: 35# | Standard: DIN985 | |
| Grade 8: 45# | |||||
| Double coil spring washer | 2 | As ordered | 65Mn | Standard: UIC864-3 | |
| screw spike | 2 | M24×150mm | Grade 4.6: Q235 | Plain oiled, black oxide, galvanized, hot dip galvanized, Dacromet and sherardized. | Standard: ISO898-1, UIC864-1 and NF F500-50 |
| M24 ×160mm | Grade 5.6: 35# | ||||
| M24 ×180mm | Grade 8.8: 45# | ||||
| or other length as ordered | |||||
| Base plate | 1 | UIC54,UIC60, 50kg rail, 60kg rail,S49 in ordered size | Casting iron QT500-7, QT450-10, or forging low carbon steel or high carbon steel | Plain oiled | Standard: UIC864-6 |
Nabla Clip Rail Fastening System
The Nabla fastening system is a fastening system named after its special Nabla shape. It is suitable for heavy-duty railways and corrosive environments, such as railways in mining areas.
| Part name | Quantity | Type | Material | Finish | Remark |
|---|---|---|---|---|---|
| N clip | 2 | Thickness 4mm or 4.5mm | 60Si2MnA, 60Si2CrA | Plain oiled, red color painting, or the other required by customers | Hardness: 42-47HRCFatigue |
| life: 3 millions cycles without breaking | |||||
| Standard: DIN17221, GB/T1222 | |||||
| Insulator | 2 | UIC54, UIC60, S49 rails | Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other colors | Different designs are available. |
| Double end screw spike | 2 | UIC54, UIC60, 50kg rail, 60kg rail | Grade 5.6: 35# | Plain oiled, black oxide, galvanized, hot dip galvanized | Bending at 30 degree without crack. |
| Special spring washer | 2 | 18.25×34×78mm | ML08Al | For protecting the thread of the double end screw spike | |
| Hex nut | 2 | As ordered | Grade 5: 35# | Standard: DIN985 | |
| Plain washer | 2 | As ordered | Q235 | Standard: DIN125 |
