How do pandrol e clips work?

Dec 05, 2025 Leave a message

How do pandrol e clips work?

 

Pandrol e-clips work as self-tensioning, spring-steel fasteners that grip the rail to the sleeper using elastic force, providing continuous clamping without loosening, preventing rail movement, and protecting against thermal expansion/contraction and dynamic forces from trains. They install parallel to the rail into a baseplate and create a strong, consistent grip, reducing rail creep and rollover, essential for high-speed and heavy-haul railway safety.

 

How They Work (Step-by-Step):

 

  • System Components: The system includes the spring steel e-clip, rail shoulders (fixed to the sleeper), a rail pad (for cushioning), and insulators (for electrical isolation).

 

  • Installation: The "e"-shaped clip is driven into a socket on the baseplate, parallel to the rail.

 

  • Elastic Clamping: As the clip is driven, its spring steel design deforms elastically, generating continuous tension.

 

railway clip

 

  • Self-Tensioning: This elastic force creates a constant, high clamping force on the base of the rail, holding it firmly to the sleeper.

 

  • Dynamic Performance: When trains pass, the clips flex but maintain their grip, resisting vertical movement (like spikes might loosen) and longitudinal movement (rail creep).

 

  • Resistance & Adaptability: The "e" shape's geometry provides both spring tension and torsional resistance, preventing rail rollover and ensuring stability under varying conditions.

 

Key Benefits:

 

rail fastening

 

  • High Clamping Force: Provides superior hold compared to traditional spikes.

 

  • Reduced Maintenance: Self-tensioning design means fewer retensioning needs.

 

  • Prevents Rail Movement: Controls thermal expansion forces, preventing buckles or breaks.

 

  • Versatile: Works in various track types (ballasted, slab) and with different sleepers (concrete, wood).

 

E rail clip provide positive and durable rail alignment under the harshest working conditions, which extend the life of railway track. Generally, e rail clips are available at the range from 18mm to 23mm diameter. Rail –e clip is usually made of spring steel. As an important type of elastic rail clips, E-rail clip has a lot of sizes, such as E1, E2, E3, E1609, E1809, E1817, E2001, E2006, E2009, E2055, E2056, etc.

 

rail fasteners

 

Name E-type rail clip
Material 60Si2MnA 60Si2CrA 55Si2Mn 38Si7
Hardness 44-48HRC
Fatigue Life for Dia.18 is 3 millions cycles without breaking
for Dia.20 is 5 millions cycles without breaking
Surface plain (oiled), Oxide black, color painting or according to customer requirement
Standard DIN17221, BS970, GB/T1222

 

GNEE RAIL supplies E-clips, PR clip, SKL clips, Russia rail clip, Deenik clip, Nabla spring blade, KPO rail calmp, gantrex rail clips, fast clip, crane rail clip and other special clips for rails. We have proffesional production cline to design and manufacture standard rail clips or nonstandard clips. welcome to as.

 

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