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The KPO clamp rail fastening system is a commonly used solution for securing railway tracks. It consists of KPO clamps, iron pads, and bolts that connect the rails to the sleepers. The KPO system employs a rigid connection ensuring that the rails remain firmly fixed in place and preventing track loosening or movement. Its effectiveness in supporting heavy loads and its durability under harsh conditions make it a preferred choice for heavy railways, port transportation, and mining tracks.
The complete KPO fastening system for each sleeper consists of the following components
| Part name | Pieces required | Material | Type | Note |
| KPO clamp | 4 | Q235 | KPO3, KPO6, KPO9 | Standard: DIN5906 |
| Screw spike | 8 | Grade 4.6: Q235 Grade 5.6: 35# Grade 8.8: 45# | M24×150mm M24 ×160mm M24 ×180mm | Standard: ISO898-1, UIC864-1 and NF F500-50 |
| HS bolt | 4 | Grade4.6: Q235 Grade5.6: 35# Grade8.8: 45# | HS26, HS32 | Diameter: 22mm or 24mm. Length: 55mm, 65mm, 75mm, 90mm |
| Hex nut | 4 | Grade 5: 35# Grade 8: 45# | As ordered | Standard: DIN985 |
| spring washer | 8 | 65Mn | As ordered | Standard: UIC864-3 |
| Base plate | 2 | Casting iron QT500-7, QT450-10, or forging low carbon steel or high carbon steel; | UIC54,UIC60, 50kg rail, 60kg rail,S49 in ordered size | Standard: UIC864-6 |
The fist rail fastening system is firstly developed in Sweden. This rail fastening system is widely used in the railroad in South Africa, Zimbabwe, Botswana, Swaziland and Namibia.
The demand for fast clip rail fastening system is growing faster than other railroad fastener in the industry.
W14HH type rail fastening system is designed for heavy haul rail with a maximum acceptable axle load of 350 kN.
The W14 fastening system is designed according to the EN13481-2 standard, allowing a maximum axle load of 260kN.
The W30 rail fastening system is widely used on ballasted tracks and concrete sleepers.
The RNY rail fastening system is designed for use in railway projects across Mexico and North America, specifically for securing 115RE rails on concrete sleepers.
The NY-ES rail fastening system is designed for railway projects in Mexico and North America, specifically for securing 115RE rails on concrete sleepers.
The NY-GN rail fastening system is specifically designed for railway projects in Mexico and North America, ideal for securing 115RE rails on concrete sleepers.
The E-clip rail fastening system is a widely adopted solution for securing railway tracks, featuring E-clip fasteners along with iron pads or embedded fittings that connect the rails to the sleepers.
The Nabla clip rail fastening system is a commonly used solution for securing railway tracks, consisting of Nabla elastic clips and connecting plates that join the rails to the sleepers.
The SKL clip rail fastening system is widely used for both ballasted tracks and concrete sleepers.
The KPO clamp rail fastening system is a commonly used solution for securing railway tracks.
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