300HH rail fastening systems

300HH type rail fastening system is designed for E category according to EN 13481-2 standard, with a maximum permissible axle load of ≥ 350 kN and minimum curve radius of 150 meters.

This rail fastening system is provided with an elastics pad of static stiffness 37.5 kN/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 – Heavy Haul for slab track
axle load – ≤ 35 t
speed – ≤ 160 km/h
high rail longitudinal resistance – min. 9 kN
electrical resistance ≥ 5 kΩ
static stiffness of elastic pad 37.5 kN/mm± 15 %
gauge adjustment in the range of ± 16 mm
clamping force for SKL15 (nominal) – The theoretical minimum clamping force after loading must be ≥ 7 kN acc. to DB drawing
height adjustment -4/+26 mm
angle head shape
all of the components can be pre-assembled