GRM AY1 rail fastening system designed to work with the specific requirements of the heavy haul railways.
GRM AY1 rail fastening system connects the rails up to 35 tons axle loads. Fatigue resistance feature is much more capable rather than other systems. The set which consisted of well-qualified components stands over 2,8 mm displacement values are easy to install and durable.
All the components of the system are produced in Gürmak Railway facilities with correct and reliable raw materials and patented by Gürmak.
|General Field of Application||Heavy Haul|
|Axle Load||≤ 35 t|
|Speed||HH ≤ 160 km/h|
|Curve Radius||HH ≥ 400 m|
|Gauge Adjustment||± 10 mm|
|Vertical Fatigue Strength GK 1||2,8 mm|
|Static Stiffness (Rail Pad)||50 – 400 kN/mm EN 13146-9|
|Toe Load||12,5 kN EN 13146-7|
|Electrical Resistance||≥ 5 kΩ EN 13146-5|
|Rail Creep Resistance||≥ 9 kN EN 13146-1|
|System Approval||EN 13481-2|
HH: Heavy Haul
Gürmak GRM AY1 rail fastening system is tested and approved by Munich Technical University
The system can be configured according to needs concerning different rail types.
|SS 23/35||Sleeper Screw|
|SDU 9/SDÜ 25||Dowel|
|GAS 139 / 175||Rail Ped|