What is type IV rail fastening system
The Type IV rail fastening system is a boltless railway fastening system, it has advantages of a compact structure, strong buckle pressure, and good gauge maintenance ability. It is used for 60kg/m rails without shoulders, serving passenger trains at 350km/h with an axle load of 170kN and mixed passenger-freight trains at 250km/h with an axle load of 230kN.
Type IV rail fastening system component
The fastening system is composed of several key components, including the C4 rail clip with joint JA and JB elastic bars, a Type IV embedded rail shoulder, an insulating gauge block, and a rubber rail pad.
We GNEE specialize in manufacturing railway equipment and are committed to providing high-quality and safe rail fastening systems, customized to meet the specific requirements of different types of rail tracks.
Type IV rail fastening system specification
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Fastener type |
Elastic IV type fastener |
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Taxonomy |
Elasticity is not separated |
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Withstand lateral forces |
Sustained by the embedded iron seat |
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With the basic connection method |
Embedded iron seat |
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Embedded part pull-out resistance |
Not less than 60kN |
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Rail Clip |
Types |
Type C4 |
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Buckle pressure |
>11 kN |
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Stretch range |
13 mm |
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Fastening method |
None bolt fastening |
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Tightening torque |
- |
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Rail longitudinal resistance |
>9 kN |
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Elastic cushion |
Settings |
Single-layer rubber pad between rail and sleeper bearing surface |
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model |
RP4 |
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Size |
170×194×10 |
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Static stiffness |
50～70 kN/mm |
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Executive standard |
Technology Foundation [2007] 207 |
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Rail height |
Rail height |
186mm |
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Adjustment |
Cannot adjust |
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Adjustment method |
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gauge |
Adjustment |
-8～+4 mm |
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Adjustment method |
Replacing different numbers Track blocks |
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Adjustment level |
1 mm |
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Rail joint processing |
Using joint bars and gauge blocks |
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Applicable sleeper type |
IIIb type non-blocking concrete pillow |
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Drawing number and standard |
Research Line 0601 Technology Foundation [2007] 207 |
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Application conditions |
250 to 350 km/h |
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Conventional resistance section |
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GNEE, a reliable type IV rail fastening system supplier
GNEE rail specialized in manufacturing and supplying railway equipments, including type IV rail fastening system and other railway fastening systems, rail fasteners, rail joints, rail tracks, and fastening system components parts for railway construction. Feel free to conatct us.
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