The difference between SKL and KPO rail fasteners system

Aug 20, 2025 Leave a message

Rail fastening system is used for fastening the steel rail and railway sleeper. The function of rail fastening system is to maintain the gauge and prevent the vertical and horizontal movement of rails relative to the position of the sleeper. A fastening system is usually consist of rail tie plate, spike, clip, rail anchor or other fasteners.

 

The SKL/KPO railway fastening systems manufactured by GNEE RAIL effectively withstand vertical, horizontal, and longitudinal forces generated during train operation. Simultaneously, they exhibit exceptional elasticity to cushion vibrations and noise, ensuring smooth and safe train movement.

 

SKL Rail Fixing System

 

SKL rail fastening systems (SKL3, SKL12, SKL14 ) are known for their excellent fatigue resistance and stability and are widely used in European railway systems. It applies to high-speed railway and urban rail transit.

 

rail clip
Item Quantity Material
SKL tension clip 2 60Si2CrA, 60Si2CrA, 38Si7
Ss35 screw spike 2 Grade 4.6: Q235
Grade 5.6: 35#
Grade 8.8: 45#
Flat washer 2 Q235
Plastic dowel 2 HDPE, Reinforced Nylon 66 (PA66)
Guide plate 2 Reinforced Nylon 66 (PA66)
Rail pad 1 EVA, or rubber

 

Features

 

Strong elasticity: SKL fasteners have high elasticity and can effectively reduce vibration and noise when trains are running.

 

High reliability: With scientific design, it is able to withstand high dynamic loads in complex environments for a long time.

 

Low maintenance cost: Simple installation and maintenance, long service life.

 

rail pad

 

KPO Railway Fasteners System

 

The KPO fastening system is a wedge-shaped fastening commonly used on wooden and steel sleepers, applicable to ordinary railways, light rails, and low-speed railways.

 

rail spike
Item Quantity Material
KPO clip 2 Q235
Screw spike 2 Grade 4.6: Q235
Grade 5.6: 35#
Grade 8.8: 45#
HS bolt 4 4 Grade4.6: Q235
Grade5.6: 35#
Grade8.8: 45#
Hex nut 2
2
Grade 5: 35#
Grade 8: 45#
Double coil spring washer 2 65Mn

 

Features

 

Simple structure: KPO fasteners consist of a wedge-shaped design, which makes installation easy.

 

High stability: It can provide a stable track-fixing force.

 

Low Cost: The manufacturing and maintenance costs are relatively low.

 

track fasteners