Type DZⅢ track fastening systems are used for ordinary monolithic track bed subway lines with 60kg/m steel rail.
The Type VI track fastening systems for MRT are suitable for laying 75 kg/m steel rails and pre-stressed concrete sleepers with shoulders on heavy-duty freight ballasted tracks.
Type WJ-2 Rail Fastening Systems are composed of rail clips, tie plates, hexagon track bolts, T-head bolts, rubber pads, nylon insulators, nuts, flat washers, spring washers, etc.
Type WJ-2 Track Fastening Systems are composed of rail clips, tie plates, hexagon track bolts, T-head bolts, rubber pads, nylon insulators, nuts, flat washers, spring washers, etc.
Type HB-AT Track Fastening Systems are composed of rail clips, screw spikes, rubber pads, nylon dowels, nylon insulators, nuts, gauge baffles.
WJ-7 Railroad Rail Fastening Systems(WJ-7 Rail Fasteners) is a type of ballastless track fastener system developed to meet the technical requirements of the passenger dedicated line fastener system for laying all kinds of non-shoulderless ballastless tracks. It is based on the original WJ-1 and WJ-2 Track Fastening Systems optimized on the basis of ballastless track fastener system.
WJ-8 Rail Fastening Systems is a kind of rail fastener for high-speed railway, which is composed of screw spikes, flat washers, rail clips, insulators, gauge baffles, under-rail pads, base plates, resilient pads, nylon dowels, etc.
WJ-12 Track Fastening Systems are suitable for laying 60 kg/m or 75 kg/m steel rail, double-block or long sleeper buried ballastless track, the minimum curve radius is not less than 400m, and the maximum axle load is 25-30t.
Type III Track Fastening Systems are rail fasteners without bolts and shoulders. Fasteners without bolts and shoulders are the development trend of sleeper fasteners all over the world and are especially suitable for heavy-load, large-volume, and high-density transportation conditions.
Type II track fastening systems are suitable for connecting 60kg/m steel rails and prestressed concrete sleepers, prestressed wide concrete sleepers, and monolithic track beds on straight lines of standard gauge railways and lines with a radius of R≥300m.
Type I track fastening systems is suitable for 50kg/m and 60kg/m rails that are fixed on concrete shoulders, it’s unnecessary to be fixed with rail clamp, due to it has good elasticity, less force loss and better maintain the geometric shape of rail track, so Type-I rail fastening Systems has become the popular and main fasteners in conventional railway with concrete sleepers.
