GNEE RAILWAY RAILWAY Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of railway fastening system nabla rail clip in China, also supports customized service with low price. Please feel free to buy cheap railway fastening system nabla rail clip made in China here from our factory.
Product Introduction
The railway fastener system is a track connection device composed of sleeper bolts, gussets, rubber pads, spring washers and other components. According to the elasticity of the fasteners, it can be divided into rigid fasteners and elastic fasteners. Rigid fasteners are suitable for heavy-duty railway turnout areas that require extremely high track stability and can withstand frequent train turning loads; elastic fasteners are often used in urban rail transit. By absorbing the vibration generated by train operation, they reduce the impact on surrounding buildings, reduce the wear between rails and sleepers, and extend the service life of the track.
Railway Fastening System Nabla Rail Clip Composition and Classification:
Usually composed of Nabla shrapnel, insulators, high-strength bolts, nuts and washers. From the perspective of application scenarios, it can be roughly divided into types suitable for ballasted track and ballastless track. In ballasted track, it works with the ballast track bed to ensure the stability of the rail; on ballastless track, such as some ballastless track examples in France, by setting a boot-type elastic cushion under the sleeper or concrete support block to simulate the elasticity of the ballast track bed, it cooperates with the Nabla shrapnel fastener system to ensure track performance.
Key Components
Nabla shrapnel: It has a special shape and is mostly made of alloy spring steel. When the nut is tightened, the shrapnel can generate a dynamic and stable buckling pressure on the rail to ensure the stability of the rail and prevent its lateral or longitudinal displacement.
Insulators: specially designed to match Nabla shrapnel, also known as support pads, can effectively achieve electrical insulation, prevent current from being transferred from the rails to other components, and ensure the normal operation of the railway power supply system and the safety of equipment and personnel around the track.
High-strength bolts, nuts and washers: used to connect and tighten various components to ensure the structural stability of the entire system and withstand various forces generated during train operation.
Product Specifications
| 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 end 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 |
Product Packaging & Delivery
Biodegradable bamboo fiber woven bags are used as primary packaging. Fasteners are put into the bags in batches, and the bag mouths are tied with hemp ropes and paper labels are hung. The woven bags are then neatly stacked on pallets made of honeycomb cardboard. The edges of the pallets are equipped with slots for inserting corrugated cardboard partitions to separate the goods. The outermost layer is wrapped with bio-based plastic film, which not only meets environmental protection requirements but also prevents the goods from scattering.
GNEE RAILWAY RAILWAY is a foreign trade enterprise specializing in the export of railway fastener systems, committed to providing high-quality fastener solutions for global railway construction projects. The main products include a full range of railway-specific fasteners such as spring clip fastener systems, sleeper bolts, insulated gauge blocks, and anti-loosening nuts. All products strictly follow international railway industry standards and meet the requirements of different national standards such as EN, BS, and DIN. We have established long-term and stable cooperative relationships with many large domestic fastener manufacturers that have passed ISO 9001 certification to ensure stable and reliable product quality and timely delivery. The company has established a complete quality control system, implementing full-process quality monitoring from raw material procurement to finished product delivery. Each batch of products undergoes strict dimensional inspection, mechanical property testing, and anti-corrosion treatment inspections.
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