Cast-in Rail Shoulder in Railway Fastening System

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Cast-in Rail Shoulder in Railway Fastening System

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Product Description

Basic Information

Model NO.:Rail shoulder

Type:Shoulder

Transport Package:Cartons, Woven-Bags or Gunny-Bags in Wooden Cases

Origin:China

HS Code:7318150000

Production Capacity:20000PCS/Day

Product Description

Rail shoulder is cast in the concrete rail ties to fix the elastic rail clips. There are two types of rail shoulders available, the cast-in shoulder and the weld-on shoulder, both of which are used for the fixing of elastic rail clips.

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).

Material Specs	UIC54	UIC60	Other Standards
Name	QT500-7	QT450-10	QT400-15
Standard	GB 1348-88	GB 1348-88	GB 1348-89
Tensile Strength	≥500 Mpa	≥450 Mpa	≥400 Mpa
Hardness	170~230HB	160~210HB	130~180HB

Types of Rail Shoulder

The rail shoulder is a semi-embedded part cast in the concrete rail ties to fix the elastic rail clip to the base plate. There are two common types of rail shoulders available: Cast-in Shoulder and Weld-on Shoulder.

Cast-in Rail Shoulder

Casting shoulders are pressed in concrete sleepers as an embedded part of the railway fastening system. They work alongside the E-clip to secure the rail. These are manufactured using high-quality casting iron following global standards.

⚙️ Mechanical Property (Cast-in):

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

Weld-on Rail Shoulder

The weld-on shoulder is used where the rail shoulder is welded onto a flat steel plate rather than a standard tie plate. These are produced via hot forging and fabricated according to AREA standards. They can be made from low or medium carbon steel based on requirements.

This type is particularly cost-effective for fabrication in switch and crossing layouts where vertical rail geometry is employed, allowing for precise positioning.

Frequently Asked Questions (FAQ)

1. What is the primary function of a rail shoulder? Rail shoulders are used to fix elastic rail clips to the concrete rail ties or steel plates, ensuring the stability and alignment of the rail within the fastening system.

2. What are the differences between cast-in and weld-on shoulders? Cast-in shoulders are embedded directly into concrete sleepers during production, while weld-on shoulders are welded onto steel plates or sleepers, often used in specialized switch and crossing layouts.

3. What materials are used for rail shoulder production? Common materials include ductile iron (such as QT400, QT450, and QT500) for cast-in shoulders and low or medium carbon steel for weld-on forged shoulders.

4. Which international standards do these rail shoulders meet? Our products are manufactured according to various international standards including GB/T 1348, NF EN 1563, ISO1038, DIN 1693, JIS G5502, and BS EN 1563.

5. Are rail shoulders compatible with different rail types? Yes, they are designed to be compatible with various rail profiles such as UIC54, UIC60, 115RE, 50kg, 60kg, BS80lbs, and BS100lbs.

6. What is the production capacity for these components? The current production capacity is approximately 20,000 pieces per day, ensuring timely supply for large-scale infrastructure projects.