Cast in Rail Shoulders - Rail Fastening
Product:Rail Shoulder
Other materials available: QT600-3,QT700-2,ZG25,ZG35,ZG45 and so on.
Standard: GB/T 1348-1988, NF EN 1563(1997), ISO1038, DIN 1693, JIS G5502 (2001), KS D 4302, GOST 7293(1985) or BS EN 1563(1997).
What is a Rail Shoulder?
A rail shoulder is a component used in railway tracks that provides stability by securing the rail clips to the sleeper. They can be either "cast-in," pre-embedded in concrete sleepers during manufacturing, or "weld-on," which are welded onto steel sleepers or base plates. Rail shoulders are crucial for fastening the rail, distributing load, and preventing rail displacement and deformation.
Cast-in rail shoulders are iron components pre-embedded into concrete railway sleepers to provide a secure anchor point for elastic rail clips. This system is used to fasten the rail to the sleeper, ensuring stability and load capacity for the track, especially in new construction projects. The shoulder is pressed into the concrete sleeper before the track is assembled with an elastic clip, which is then used to secure the rail.
Rail Shoulders Specifications
The casting shoulders as the embedded part of the railway fastening system are pressed in concrete sleeper and work together with the E clip to fasten the rail. The cast in shoulder is made by casting from iron, such as, GB/T 1348-1988, NF EN 1563(1997), ISO1038, DIN 1693, JIS G5502 (2001), KS D 4302, GOST 7293(1985) or BS EN 1563(1997).
| Application | UIC54 | UIC60 | 115RE, ,50kg rail, 60kg rail,BS80lbs, BS100lbs, ect. |
| Name | QT500-7 | QT450-10 | QT400-15 |
| Standard | GB 1348-88 | GB 1348-88 | GB 1348-89 |
| Chemical composition(%) | C:3.60-3.80 | C:3.40-3.90 | C:3.50-3.60 |
| C:3.60-3.80 | Mn:0.2-0.5 | Mn:≤0.5 | |
| Si:2.50-2.90 | Si:2.70-3.00 | Si:3.0-3.2 | |
| P:≤0.08 | P:≤0.07 | P:≤0.07 | |
| S:≤0.025 | S:≤0.03 | S:≤0.02 | |
| Tensile Strength | ≥500 Mpa | ≥450 Mpa | ≥400 Mpa |
| Yield Strength | ≥320 Mpa | ≥310 Mpa | ≥250 Mpa |
| Elongation(%) | ≥7 | ≥10 | ≥15 |
| Hardness | 170~230HB | 160~210HB | 130~180HB |
| Metallographic organization | ferrite & pearlite | graphite & ferrite & pearlite | ferrite |
Application for Rail shoulder in E Clip System
| Item | Component | Types | Material |
|---|---|---|---|
| 1 | Rail Clip | E1809, E2052, E1804, E2055, E2005, E2006 | 60Si2MnA |
| 2 | Casting Insert | According to customer's drawing | QT450-10 |
| 3 | Rail Insulator | According to customer's drawing | PA6+30%GF |
| 4 | Rail Pad | According to customer's drawing | Rubber |
How to make the Rail Shoulder? – Lost Foam Technology
Lost Foam is a unique casting process which is ideally suited to the manufacturing of geometrically complex parts with one cast. The main characteristic of the process – as already stated in the name "Lost Foam" – is the use of "lost" patterns made of organic foam materials. The patterns are inserted into a mould material that is free of bonding agents by using vibration compression. During casting, the pattern is then pyrolysed by the molten steel, thereby creating a hollow space which the molten steel fills up. In this way, an exact metallic cast copy of the pattern is created. In addition to the possible geometric complexity, Lost Foam cast parts distinguish themselves through their excellent surface qualities and dimensional accuracy.
other types of railway fastening from gNEE RAIL
Railway fastenings secure rails to sleepers and are categorized into types like spikes, screws, and clips. Common types include spikes (dog spikes and screw spikes), screws (chair screws and fang bolts), and various clip systems such as e-clips, Pandrol Fast Clips, and SKL clips. Other components include tie plates, fishplates, and rail anchors.
GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.
Click here to obtain the detailed product catalog of GNEE RAIL.
rail fastening Packaging & Delivery
Prior to shipment packaging of railway fasteners, classification and sorting, as well as thread protection, must be carried out. Bolts and other threaded fasteners are individually sleeved with thread protectors to avoid thread damage, deformation, or blockage by foreign objects during transportation. The protectors are made of wear-resistant polyethylene material, ensuring a tight fit to the thread structure. For small flat fasteners such as washers and spring washers, partitioned plastic boxes are used for separate packaging by quantity, with each compartment labeled with specifications, and the box cover sealed with snap-fasteners to prevent part leakage. After completing basic protection, various packaging units are placed into reinforced corrugated cardboard boxes according to order ratios. Bubble cushioning pads are laid inside the boxes, and the top of the boxes is sealed with cardboard. Then, nylon strapping bands are used for diagonal cross strapping, with strapping nodes secured with metal buckles, to enhance packaging firmness.
GNEE RAIL is a leading enterprise in the manufacture of railway fasteners and standard parts in China, holding production licenses issued by the Ministry of Railways. Leveraging advanced hot forging technology and high-precision testing equipment, we ensure product strength. Every railway fastener product we provide undergoes impact toughness testing and dimensional accuracy calibration, adapting to diverse installation scenarios such as trunk railways and urban rail transit. Custom manufacturing is available based on customer drawings or samples. The technical team follows through the entire process from requirements coordination to production monitoring, efficiently collaborating from sample confirmation to batch delivery, always adhering to the principle of "supplying optimal products at optimal prices," providing stable fastener support for global rail transit projects.
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