Fastclip is a non-elastic rail clip. GNEE RAIL's fast clip is made of high-quality spring steel, such as 60Si2Mn, etc., so it has high elastic limit, yield strength and fatigue strength, and is not prone to plastic deformation during long-term use. And it is widely used in some advanced railway lines in Europe, the United States, Japan, South Korea and other countries and regions.
FAST railway clips exhibit distinct characteristics compared to other railway elastic clips such as SKL, KPO, Nabla, and E-type rail elastic clip etc in terms of performance and application scenarios, as summarized below:
| Comparison Items | Fast clip | Other clips |
| Structural Design - Installation Method | Installed by inserting perpendicular to the rail | For example, Clip Type III may be inserted from the side |
| Structural Design - Component Parts | Composed of clips (with insulating caps), insulating gauge blocks, rubber pads and embedded iron bases, etc. The components fit closely and have unique electrical insulation functions | The components may be relatively simple or have different functions |
| Performance Parameters - Clamping Force | The clamping force of fc1504 is (10 ± 1.0) kN, and that of fc1306 is 3 kN | The clamping force of Clip Type I is relatively small, while that of Clip Type II and III is relatively large |
| Performance Parameters - Spring Travel | The spring travel of fc1504 clip is not less than 10 mm, and that of fc1306 clip is not less than 7 mm | The spring travel of each model is different. For example, the spring travel of Clip Type III is different from that of Fast clip |
| Application Range - Track Type | Commonly used in ballasted tracks and widely applied in some high-level railway lines abroad | Applicable to various tracks such as ballasted, ballastless and subway tracks according to their performance |
| Application Range - Train Speed | Suitable for high-speed trains | Some clips are more suitable for medium and low-speed railways |
| Maintenance and Adjustment - Gauge Adjustment | Achieved by replacing different specifications of insulating gauge blocks, with a range from -8 mm to +4 mm | For example, by moving tie plates, adjusting shims, etc., which is different from Fast clip |
| Maintenance and Adjustment - Replacement and Maintenance | With a complex structure, it may be necessary to use special tools to retract the clip to a specific position for operation | Some clips can be directly disassembled and installed without special tools |
