What are the characteristics of a rail shoulder?

 

A rail shoulder is a component that provides lateral support to the rail, often embedded in a concrete sleeper to securely hold the fastening clips. Key characteristics include high resistance to pressure, wear, and corrosion, a durable and stable structure that resists deformation, and a long service life requiring low maintenance. They are designed for high-performance applications and to withstand harsh conditions.

 

Functional and physical characteristics

 

• Lateral support: The primary function is to provide lateral support to the rail, holding it firmly against the sleeper.

 

• Deformation resistance: It must resist deformation caused by environmental factors and stresses from passing trains.

 

• Material properties: High-quality materials are used for durability and resistance to wear and corrosion, such as QT450-10 cast iron or other high-strength materials.

 

 

• Fastening integration: It is designed to work in conjunction with specific rail fastening systems, such as Pandrol E clips, to securely hold the rail.

 

• Embedded design: For concrete sleepers, the shoulder is typically cast into the concrete at the time of manufacturing to ensure a strong, permanent connection.

 

• Durability: Shoulders are built to be durable and long-lasting, with a long service life.

 

 

Rail shoulder is a key part in rail fastening system. It is cast in concrete sleeper to fix the elastic rail clips to fasten the rails. GNEE RAILWAY RAILWAY supplies the cast-in shoulder and the weld-on rail shoulder for Pandrol E clip system and Fast clip system.

 

Cast in Rail Shoulders

 

Cast in Shoulder is made by casting from iron, and such shoulder is used by being pre-embedded in the concrete sleepers and works with the elastic clip to fasten the rail.

For materials, cast in shoulder includes 3 types: M.C.I. shoulder by malleable iron and S.G.C.I. shoulder by malleable iron and S.G.C.I. shoulder by spheroid graphite iron.

 

 

Weld-on Shoulder

 

Weld-on shoulder is made by hot forging, and such shoulder is used for places where standard sleepers are unable to be easily used so the shoulders need to be welded on the flat steel base plates. In this way, it can fabricates the rail retaining units on both the steel ties and base plates, according to AREMA standard always.

 

 

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

 

GNEE RAILWAY RAILWAY 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.

 

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