Rail anchors made in one-piece construction from spring steel are designed to fasten the steel rail tight on the base of the rail to prevent the rail from longitudinal movements, i.e. the " creeping" of the rail, caused by changing temperature, grades, traffic patterns, and braking action of trains.
Rail anchors are applied to the rail base directly and lodge up against the tie. Rail anchors provide a large bearing surface against rail base and railroad tie, preventing cutting and wear, and eventually to prolong the working life of the railroad ties. Anchors are made for a specific rail weight and base width, which can be classified into two types: the Drive-on rail anchors and Spring type rail anchor.
Drive-on anchor
Features
Installation method: The design enables it to be mounted to the rail by a vehicle or mechanical device drive, without the need for manual installation.
Improve efficiency: The use of drive machinery can greatly increase the installation speed and reduce the need for manual labor.
Enhance track stability: A drive-on rail anchor is particularly suitable for the construction and maintenance of large rail projects, such as high-speed railways, heavy haul railways, or large-scale track renovations.
Application scenario
High-speed and heavy haul railways: These railways often have high requirements for track stability, and Drive-on rail anchors help ensure the long-term stability of the track system by providing greater installation efficiency and reliability.
Track maintenance: In the routine maintenance and inspection of the track, the use of drive anchors can significantly increase the working speed and reduce downtime.
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Spring type rail anchor
A spring type rail anchor is a clip made of spring steel that is attached to the base of a railway rail to prevent its longitudinal movement caused by thermal expansion or vibration. It clamps tightly onto the rail base and pushes against the side of the sleeper (cross tie) to resist the rail from creeping forward or backward. This helps maintain track stability and prolongs the life of the sleepers.
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Rail anchors specifications
| Type | Used in 50Kg, 85Kg,90/91LB, 115RE /136RE ,UIC54 & UIC60 rail, or other types upon customers' drawings. | ||
| Material | 60Si2MnA | 45# | QT500-7 |
| Chemical composition(%) | C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 | C:0.42-0.50, Mn:0.50-0.80, Si:0.17-0.37, Cr:≤0.25, P:≤0.035, S:≤0.035 | C:3.60-3.80, Mn:≤0.6, Si:2.50-2.90, P:≤0.08, S:≤0.025 |
| Surface | plain (oiled),color painting, zinc painted or HDG | ||
| Standard | AS1085.10-20002 , DIN, ISO-9001 | ||
