Firstly introduced in France (tire-fond in French) and the screw spike is widely used in continental Europe. A screw spike is used to fix the tie plate or fasten the rail to the sleeper with the help of a plastic dowel. Compared with other spikes, screw spike has greater power and the manufacture cost is higher. According to different thread profiles, lengths, diameters and drive heads, screw spike can be classified into Ss series sleeper screw, square-head screw spike, hexagon screw spike and double-head screw spike.
Correct installation of SS6 screw spikes is crucial for ensuring railway safety. Prior to installation, preparatory work must be completed, including inspecting whether the sleeper holes meet requirements, clearing debris from the holes, and performing reaming when necessary.
During installation, first align the spike vertically with the hole, then apply appropriate pressure and begin rotating. Initial rotation should maintain a constant speed to avoid damaging the threads. After approximately one-third of the spike length has been embedded, rotation speed may be appropriately increased. As full installation approaches, control the applied force to prevent overtightening, which could result in sleeper cracking.
Upon completion, inspect whether the spike's protrusion height complies with standards-typically requiring a certain distance between the head and the sleeper surface. Simultaneously, verify the vertical alignment of the spike, as tilting may compromise its securing effect. When installing on concrete sleepers, special care must be taken to avoid damaging the concrete.
GNEE RAIL can provide you with professional installation guidance. Contact us for various types of railway spikes, as well as railway fasteners, fish plates, gauge rods, under-rail pads, ballast mats, rail clips, and more.
