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Product Introduction
The KPO fastener system is a professional fastening device developed for the connection needs of railway tracks, covering KPO3, KPO6, KPO9 and other series. The system consists of KPO clips, screw spikes, bolt and nut assemblies, rail rubber pads and iron pads. Among them, KPO clips are made of Q235 carbon structural steel, and screw spikes and other load-bearing parts are made of 35# and 45# steel according to strength requirements. The system is mainly used for the fastening of railway line rails and sleepers, and can effectively disperse the load generated by train operation. Its advantages are simple and reliable structure, which can be quickly installed through standardized components. The production process includes forging, mechanical cutting, heat treatment strengthening and surface galvanizing anti-corrosion treatment.
KPO rail fastener system belongs to the gusset fastener system, which is a fastener system for railway tracks. It is usually used for ordinary railway tracks and may also have certain adaptability in some special track applications such as crane tracks.
Composition: It is generally composed of gussets, threaded spikes, spring washers, iron seats and buffer pads. The threaded spikes are anchored in the reserved holes of the concrete sleeper support platform with cement mortar, and then the gussets are fastened with bolts to achieve the connection between the rails and the sleepers.

Railway Track KPO Crane Rail Clamps Features:
Simple structure: The structure of this fastener system is relatively simple, with a small number of parts, which is easy to install and disassemble. It can improve work efficiency and reduce labor intensity during track construction and maintenance.
Convenient track gauge adjustment: The track gauge can be adjusted by replacing gusset plates with different numbers to meet the needs of different line designs and later line reconstruction.
Application: It is widely used in railway tracks and is suitable for different types of rails and sleepers, including railway lines with ballasted and ballastless track beds. In some crane tracks, if the track fixation requirements are not particularly high, and the crane operating speed, load and other parameters meet the load-bearing capacity and performance characteristics of the KPO type fastener system, this fastener system can also be used to fix the crane track to achieve rail tightening and track gauge maintenance.
Product Specifications
| 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 |
GNEE RAIL is a professional trader of railway fasteners with 30 years of export experience. It mainly deals in various standard railway fasteners, high-strength bolts and insulation components. All products meet the latest international standards. It has established an industry-leading testing laboratory that can conduct professional tests such as fatigue life and environmental adaptability. It is equipped with a service team composed of senior foreign trade experts and multilingual talents to provide 24-hour online technical support. Innovatively develop an intelligent supply chain management system to achieve visual tracking of the entire order process.






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