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The iron shoulder is cast in the concrete ties for fixation of elastic rail clips. Our rail cast iron shoulders include M.C.I. shoulder manufactured from pearlitic malleable iron and S.G.C.I. shoulder manufactured from spheroid graphite iron. We offer two types of iron shoulders. One is Single Stem Iron Shoulder used in pre-stressed concrete ties and the other is Twin Stem Iron Shoulder used in Bi-Block or Twin Block concrete ties.
Casting shoulders are pressed in concrete sleeper and assembled with E clip in order to fasten the rail. The material we use is cast iron and the mechanical property and chemical composition of the rail cast iron shoulder are shown below:
| Material | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) |
| QT400-15(GGG40) | 400 | 250 | 15 |
| QT450-10(GGG45) | 450 | 310 | 10 |
| QT500-7 (GGG50) | 500 | 320 | 7 |
| C | Si | Mn | P | S | |
| QT400-15 | 3.6-.36 | 3.0-3.2 | 0.5 | 0.07 | 0.02 |
| Qt450-10 | 3.4-3.9 | 3.7-3.0 | 0.5 | 0.07 | 0.03 |
| QT500-7 | 3.4-3.8 | 2.5-2.9 | 0.6 | 0.08 | 0.025 |
This type of rail shoulder is produced by hot forging, used together with clip bolt and special rail clip to fix the rail. The material can be low carbon steel and mid carbon steel, according to our customers' requirement.
Weld-on shoulder is used for the typical position of rail. This rail cast iron shoulder is welded on flat steel plate instead of the standard tie plate and is produced according to AREA standard. Designed for use with E style elastic rail clips, the weld on shoulder fastening allows customers to fabricate rail retaining units on both steel sleepers and steel base plates.
The rail cast iron shoulders can also be welded on to longer length steel sleeper sections or bearers for use in the fabrication of switch and crossing layouts where vertical rail geometry is employed. The railway shoulder's ability to be welded in the specific position as dictated by the layout design makes it particularly useful and cost effective in this role.
The shoulder accessories are supplied for specific rail sections with design criteria which ensure that the correct elastic clip toe loading is achieved. Certain shoulders are supplied with milled weld area faces to assist in achieving the necessary weld integrity.
We can offer weld-on types to suit Pandrol style clips 30lb up to 113lb.
Adhering to our quality first policy, SUYU pays great attention to quality control management. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to ensure all our rail cast iron shoulder are of high quality and up to customers' requirements.
As a leading manufacturer of rail fastening based in China, SUYU also produces many other railway fasteners, such as track bolt, sleeper screw, rail anchor, rail joint bar, tie plate, rail clips, elastic rail clip, SKL tension clamp, and so on.
Rail anchor is manufactured in one-piece construction for spring steel or equal, heat-treated and designed to eliminate creepage of track. The rail anchors provide a large bearing surface against both rail base and tie, avoiding undo cutting and wear, thus prolonging the life of wooden ties.
Tie plates are generally used to take the load of rail and distribute the load to the sleepers offering proven economies. We manufacture all types of base plates suitable for various rail sections, for use on wooden, steel or concrete sleepers and ballast-less tracks used with elastic fastenings on wooden sleepers and 'K' type fastening system.
Adhering to our quality first policy, SUYU pays great attention to quality control management. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products.
We produce E type rail insulator and guide plate for SKL rail fastening and Nabla fastening system. The material we use for rail insulator is PA66, with the color white, dark brown and black.
Rail plastic sleeve is pressed in concrete sleeper and assembled with sleeper screws, guide plates and rail clip to fix the rail. Our rail plastic sleeve is made using either HDPE or PA66 and the product color is available in white, black and dark brown.
We deal in all types of fish plate, also known as joint bar, splice bar and angle bar. We have in-house rolling, forging, machining, and drilling and punching facilities to ensure accurate rail fish plate size.
Rail sleeper screw spikes are used to fasten sole plates and ribbed base plates to wooden sleepers. In rail construction with the concrete sleepers, the rail sleeper screw is used in combination with a plastic dowel pressed in the concrete sleeper, indirect or direct fastenings of rails on concrete and wooden sleepers.
A rail spike is a large nail with an offset head that is used to secure rails and base plates to the sleepers in track. The rail spikes are roughly chisel-shaped with a flat-edged point.
Sticking to our quality first policy, SUYU pays great attention to quality control management. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to ensure all our railway bolt products are of high quality and up to customers' requirements.
We are extremely capable of producing elastic rail clip for any type of toe load and axle load requirements to fix the rails on wooden, steel or concrete sleepers. We offer various elastic rail clip with size steel bar diameter from 12mm to 20mm.
Our rail cast iron shoulders include M.C.I. shoulder manufactured from pearlitic malleable iron and S.G.C.I. shoulder manufactured from spheroid graphite iron.
Need reliable railway fastening solutions? Contact us today for more information!
SUYU can offer diversified train wheels like the casting wheel and forging wheel.
SUYU can provide a complete set of rail fastening system of SKL14, SKL12, elastic rail clip system, and Nabal clip system.
SUYU is a specialized rail fastening manufacturer based in China.
