The rail anchor or rail anti-climbing device is a spring steel clip, which is connected to the underside of the sleeper plate and rests on the side of the sleeper. The function of the rail anchor is to prevent longitudinal movement of the rail due to temperature changes or vibration.
The rail anchor is directly installed on the rail baseplate and leans on the rail tie rod. The rail anchor provides a large bearing surface for the rail base and sleepers, prevents cutting and abrasion, and ultimately extends the service life of the sleepers. Anchors are manufactured for specific rail weight and base width, and can be divided into two types: driven on rail anchors and spring-loaded rail anchors.