300 rail fastening systems

The 300 type rail fastening system is designed for C & D category according to EN 13481-2 standard, with a maximum permissible axle load of ≥260kN and minimum curve radius of ≥150meters for conventional rail and ≥400meters for high-speed trains.

This rail fastening system is provided with a Elastics pad of static stiffness 22,5kN/mm ±15%.

Due to the mid-loop of the SKL15 clip, which is mounted over the rail foot, this rail fastening solution is characterized by additional flexibility.

This eliminates the possibility of overloading the clip arms and their plastic deformation, as well as prevents
rail rotation.

Technical aspects of 300HH system

typical field of application – Conventional rail & high speed
axle load – max. 260kN
speed – ≤250km/h for CR
speed – ≥250km/h for HS
high rail longitudinal
electrical resistance ≥5kΩ
static stiffness of elastic pad 22.5kN/mm±15%
clamping force for SKL15 (nominal) – The theoretical minimum clamping force after loading must be ≥7kN acc. to DB drawing
gauge adjustment in the range of ±16mm
high adjustment in the range of -4mm/+76mm
possibility to use anti-thief screws with a triangle head shape
all of the components can be pre-assemble