Rail anchors are an essential component of the railway fastening system, primarily used to secure the longitudinal position of rails. They prevent rails from shifting or creeping longitudinally due to train movement, braking forces, or temperature variations, thereby ensuring track geometry stability and operational safety.
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:3.60-3.80, Mn:≤0.6, Si:2.50-2.90, P:≤0.08, S:≤0.025 | ||
| 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 | ||
| Surface | plain (oiled),color painting, zinc painted or HDG | ||
| Standard | AS1085.10-20002 , DIN, ISO-9001 | ||
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When trains operate at high speeds or heavy trains pass over the tracks, rails are subjected to significant longitudinal forces. Without proper anchoring, rails may gradually move, causing gauge deviations, uneven track, and in severe cases, derailments. Rail anchors grip the rails and transfer longitudinal forces to the sleepers and track bed, keeping the rails in their designed positions and ensuring the safe passage of trains or industrial vehicles.
Rail anchors are typically used in conjunction with rail pads, rail clips, rail clip springs, and bolt systems, forming a complete track fastening assembly. Beyond preventing longitudinal movement, rail anchors also provide restraint during rail thermal expansion and contraction, maintaining track gauge accuracy and structural stability under varying temperature conditions.
Depending on the sleeper type and application environment, rail anchors can be classified into wooden sleeper anchors, concrete sleeper anchors, and screw-type anchors. They are usually made of high-strength carbon steel or alloy steel to meet the demands of high-frequency, heavy-haul railways and industrial tracks. Proper installation and maintenance of rail anchors are vital for extending track life and ensuring operational safety.
GNEE RAIL supplies a full range of rail anchors and associated fastening components. We also offer custom processing and installation guidance to help clients achieve long-term track stability. For professional selection advice or quotations, please contact GNEE RAIL.
