A rail fastening system is the whole set fasteners that are used to join the rails and railroad ties (or other type of rail foundation). Normally, rail fastening system is consist of rail spike, rail bolt, rail clip, tie plate, rail pad and plastic dowel, etc. Rail fastening system is also known as an intermediate coupling part.
Nabla Rail Fastening system
The Nabla Fastening System is an safe and reliable system, most widely used in Europe. It can be used in Tram, LRT, Metro, Main Line and High Speed tracks.
Structurally, a Nabla clip rail fastening system contains these parts like nabla clips, insulator, double end screw spike, special spring washer, hex nut and plain washer.
| Nabla Rail Fastening System | |||
| Part Name | Pcs / Set | Types | Material |
| Nabla Clip | 2 | Thickness: 4mm or 4.5mm | 60Si2MnA / 60Si2CrA |
| Rail Insulator | 2 | For Rail of UIC54,UIC60, | Reinforced Nylon 66 (PA66) |
| 50kg rail,60kg. | |||
| Double Head Screw Spike | 2 | For Rail of UIC54,UIC60, | Grade 4.6: Q235 |
| 50kg, 60kg. | Grade 5.6: 35# | ||
| Grade 8.8: 45# | |||
| Nut | 2 | Can be customized | Grade 5: 35# |
| Grade 8: 45# | |||
| Spring | 2 | Can be customized | ML08AL, 60Si2MnA, 65Mn |
| Spring Washer | 2 | 18.25×34×78mm | ML08AI |
Nabla Rail Fasteners Technical Parameters
| Nabla Rail Fasteners Technical Parameters | ||||
| Part name | Type | Material | Finish | Remark |
| Nabla clip | 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 | UIC54, UIC60, S49 rails | Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other colors | Different designs are available. |
| Double head screw spike | 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 | 18.25x34x78mm | ML08Al | Plain oiled, black oxide, galvanized, hot dip galvanized | For protecting the thread of the double end screw spike |
| Hex nut | As ordered | Grade 5: 35# | Plain oiled, black oxide, galvanized, hot dip galvanized | Standard: DIN985 |
| Plain washer | As ordered | Q235 | Plain oiled, black oxide, galvanized, hot dip galvanized | Standard: DIN125 |
GNEE RAIL is a professional supplier of railway fasteners serving the global market, with products widely used in high-speed railways, heavy-haul railways, urban rail transit, and port dedicated lines. Our product range includes rail clips, gauge plates, rail joint bars, sleeper bolts, rubber pads, T-bolts, fish plates, bolts and nuts, providing reliable fastening solutions for various types of railway projects.
In addition to supplying high-quality products, GNEE RAIL offers customized production, export packaging, and on-site technical guidance services to help customers improve efficiency in project construction and maintenance. Contact us to discuss cooperation opportunities.