Rail E Clips Fasteners Elastic Rail Clip for Railway Fastening System

• Customization: Available
• After-sales Service: Contact Us
• Warranty: Contact Us
• Model NO.: SA-56622
• Customized: Customized
• Certification: ISO14001, ISO9001, CE, RoHS, ISO 9001:2000, ISO 9001:2008
• Type: Metal Forging Part
• Item: Rail Clip
• Molding Style: Forging
• Molding Technics: Gravity Casting
• Application: Hardware
• Material: Steel
• Heat Treatment: Quenching
• Surface Treatment: Powder Coating
• Forging Tolerance: +/-0.5mm
• Standard: ASTM
• Place of Origin: Shandong, China
• Use: Railway
• Shape: Round, Square, etc.
• Dimensions: as Your Requirement
• Quality Control: 100% Inspected
• Advantages: Within 20 Days After Receiving Last Confirm Info
• Transport Package: Plywood Box
• Specification: SGS
• Trademark: ShengAo
• Origin: Weifang, Shangdong, China
• HS Code: 7325109000
• Production Capacity: 500ton/Month
• Package Size: 60.00cm * 45.00cm * 40.00cm
• Package Gross Weight: 60.000kg

Product Description

Rail E Clips Fasteners Elastic Rail Clip For Railway Fastening System

Product Description

What is Rail Clips

The rail elastic clips (also called rail clip, elastic rail clip) are used with railway sleeper to fasten rails on both sides. The rail clips are usually made of forged spring steel, which are manufactured by hot forging process. The forged rail clips are considered to be better than other metal forming process due to most uniform microstructure.


How does the rail clips works
Rail clips produce buckling force on the track through the bending and distortion of the rail clips, which effectively guarantees the reliable connection between the rails for a long time, maintains the integrity of the track as much
as possible, prevents the rail from moving in the vertical and horizontal directions relative to the sleeper, and ensures the rail The distance is normal to ensure the safety of rail vehicles. In addition, because the train wheels and the rails are in rigid contact, vibration is unavoidable. The special elastic structure of rail clips also allows them to absorb the impact energy generated when vehicles pass by, and achieve the effect of shock absorption. Rail
clips work under repeated alternating stresses. They bear various effects such as bending, torsion, fatigue and corrosion. When vehicles pass, they also bear extremely high instantaneous impact loads, so the performance requirements of rail clips are very strict.

 

Series	Model	Spec.	Hardness
E rail clip	III type rail clip	ø18	44-48HRC
	E1609 rail clip	ø16
	E1809 rail clip	ø20
	E1804 rail clip	ø18
	E1806 rail clip	ø18
	E1813 rail clip	ø18
	E2001 rail clip	ø20
	E2007 rail clip	ø20
	E2009 rail clip	ø20
	E2039 rail clip	ø20
	E2055 rail clip	ø20
	E2056 rail clip	ø20
	E2063 Rail Clip	ø20
	E2091 Rail Clip	ø20

Our Advantages

1. Superior Quality Control - Ensuring products meet the highest standards. 2. Highly Competitive Prices - Get the best value for your investment. 3. Cutting-Edge Technology - State-of-the-art products for modern living. 4. Expert Team - Professional and passionate about lifestyle electronics. 5. Seamless Communication - Smooth, responsive, and easy to work with. 6. Effective OEM & ODM Services - Tailored solutions to meet your unique needs.

Our Mission

Our mission is to advance the safety and efficiency of the rail transit industry by providing excellent track accessories and services. We are dedicated to being a reliable partner for our clients, together facing future challenges and opportunities.

Please feel free to contact us for more information. We look forward to working with you and contributing to the development of the rail transit industry!



1 Abundant capital and strong productivity
We have registered capital of 10 million yuan and fixed assets of 300 million yuan. The annual turnover is more than 1 billion yuan and rolled steel turnover is 300,000 tons/year.
2 Multiple product types
Our products cover four series, involving steel rail sales, mining support material sales and processing, steel sales and processing, machinery parts manufacturing, etc. It is the largest mining support material processing, sales, logistics distribution base in China.
3 Extensive Export experience
Our products have exported to many countries, including Poland, Sudan, Israel, South Korea, Thailand, Australia, Russia, etc
4 Large stock
We have adequate supply and complete specifications. The perennial raw material inventory is more than 20,000 tons per year,
5 High quality
We adhere to ISO 9001-2008 quality control system. We have also obtained the production license of railway products from The Ministry of Railways of China.


Rail clips processing procedures
1. Raw material: Premium grade spring steel sourced from a reliable and certified long term producer.
2. Shearing: The spring steel bar has to be sheared as per length required.
3. Heating: to forging temperature (950-1000 degrees Celsius), but over heating shall be avoided to check decarburization.
4. Forming: Proper heated bar is transferred to power press for forging.
5. Hardening: The forged rail clips are transferred to quenching tank. Dimensional accuracy and quench hardness of rail clips are checked before tempering.
6. Tempering: The rail clips are tempered at about 350 Celsius to achieve appropriate toughness in the spring.
7. Inspection: The products are then checked thoroughly as per China CRCC and customer required specification and design.
8. Packing: Clips can be packed in woven bags or upon customer requirement.

For all types of rail clips:
1. Pre-assembly with T-bolt and washer (supplementary service)
2. Corrosion protection surface
3. Time saving and transit safe packing
4. All rail clips can work well under pressure over 2700lbs.
5. Fatigue life:For Dia.18 is 3 millions cycles without breaking. For Dia.20 is 5 millions cycles without breaking

      Our Services
      1. Long standing reputation in this field.
      2. Specialization is standard and accurate meet your requirement.
      3. OEM quality standard guaranteed.
      4. Product upgrading and expansion of species.
      5. Good quality with competitive prices.
      6. Flexible and convenient logistic service.
      7. Excellent and high quality control.
      8. Long lasting working life time.
      9. Sufficient storage.
     10. Original truck spare parts and professional manufacture.
     11. High technology and stable performance.
     12. Various size and models available.
Quality Control
In order to ensure the quality of the orders,our independent QC members to carry out strict inspection at each 
stage:
*Raw Material Quality Control: Chemical Composition Analysis, Mechanical Performance Test
*Production Process Quality Control: Full-size inspection for the 1st part, Critical size process inspection, SPC process monitoring
*Lab ability: CMM, OGP, XRF, Roughness meter, Profiler, Automatic optical inspector
*Quality system: ISO9001

FAQ: 
 

1. What is an Elastic Rail Clip?

An elastic rail clip (commonly known as a rail fastening clip) is a critical component in modern railway track systems. It is a spring-steel fastener that clamps the rail foot to the baseplate/sleeper, maintaining gauge (distance between rails), absorbing dynamic loads, and allowing controlled longitudinal rail movement to manage thermal stresses.

2. What are the Main Types of Elastic Rail Clips?

• Nabla Clip (also RN Clip or French Type): A widely used, symmetrical omega (∇)-shaped clip.

• SKL Clip (German Type): A robust, asymmetrical clip with a distinctive shape, common in European high-speed lines.

• Pandrol "e" Clip (PR Clip): The most globally recognized clip, with a circular shape and "e" design.

• Fastclip (Vossloh): A pre-assembled, self-locking system for high-speed applications.

• Cobra Clip (Mermec): A lightweight, low-profile clip.

• Dockrail Clip: Common in North American freight corridors.

• Fist Clip (Chinese Standard): The standard clip for Chinese high-speed and heavy-haul railways.

3. What is the Primary Function of a Rail Clip?

Its core functions are:

• Vertical Toe Load: Exerts a constant, elastic downward force on the rail foot (typically 8-15 kN).

• Longitudinal Rail Restraint: Allows the rail to expand/contract under temperature changes (thermal breathing) while preventing uncontrolled movement.

• Electrical Insulation: Most clips are part of an insulated assembly to maintain track circuit integrity for signaling.

• Vibration & Noise Dampening: The clip's elasticity absorbs high-frequency vibrations, reducing noise and fatigue.

4. What Materials are Used?

• Primary Material: Spring Steel (e.g., 60Si2MnA, SUP7, 52CrMoV4, SAE 9254) with high tensile strength (1400-1800 MPa), yield strength, and fatigue resistance.

• Surface Treatment: Hot-Dip Galvanizing is standard for corrosion protection. Epoxy powder coating is sometimes used for additional durability.

• Special Applications: Stainless steel (Grade 316) for highly corrosive environments (coastal, tunnels).

5. What are the Key Performance Parameters?

• Toe Load (Clamping Force): The most critical parameter. Must be sufficient to prevent rail creep but allow thermal movement. Measured at installation and after settling.

• Fatigue Life: Must withstand 2-5 million load cycles (simulating axle passes) without failure or excessive load loss (typically <20%).

• Deflection at Toe Load: The elastic travel distance when applying the toe load.

• Relaxation: The permissible permanent loss of toe load over time due to settling and wear.

6. What are Common Failure Modes?

• Fatigue Fracture: The #1 cause. Cracks initiate at stress concentrators (scratch, corrosion pit, manufacturing defect) and propagate until failure.

• Stress Corrosion Cracking (SCC): In corrosive environments under tensile stress.

• Hydrogen Embrittlement: Caused by improper plating/acid pickling during manufacturing.

• Excessive Plastic Deformation: Loss of toe load due to yielding, often from over-deflection or material issues.

• Corrosion & Wear: Reduces cross-sectional area, leading to overload.

7. How is Installation and Maintenance Performed?

• Installation: Done with specialized hydraulic or electric clip applicators (e.g., Pandrol ADZ machine) to ensure precise, consistent toe load.

• Maintenance Checks:

  • Visual Inspection: For cracks, corrosion, or misalignment.

  • Toe Load Measurement: Using handheld dynamometers or ultrasonic tension meters to check if force is within specified range.

  • Re-tightening/Replacement: Clips that have relaxed beyond tolerance or show defects must be replaced. They are generally not re-tightened but exchanged.

8. What are the Advantages over Rigid Fastenings (like spikes or bolts)?

• Constant Elastic Hold: Maintains clamping force under dynamic loads and track settlement.

• Higher Lateral & Longitudinal Track Stability: Essential for high speeds and heavy axle loads.

• Reduced Maintenance: No periodic re-tightening needed under normal conditions.

• Vibration Absorption: Protects the sleeper and ballast from dynamic pounding.

• Faster Installation & Replacement.

9. How do I Choose the Right Clip for My Application?

Selection depends on:

 

 

Factor	Consideration
Traffic Type	Heavy Haul: High toe load, supreme fatigue resistance (e.g., SKL, Fist). High-Speed: Consistent performance, low relaxation (e.g., Fastclip, SKL). Transit/Metro: Often Nabla or Pandrol.
Axle Load & Speed	Higher values require clips with higher design margins.
Environmental Conditions	Coastal/tunnel: Stainless steel or extra coating. Extreme cold: Attention to steel's ductile-to-brittle transition.
Sleeper/Baseplate System	The clip must be compatible with the specific fastening assembly (e.g., Pandrol clip on a Pandrol shoulder).
Life-Cycle Cost	Consider initial cost, expected service life, and replacement labor.

10. What are the Relevant International Standards?

• Europe: EN 13481 series (Railway applications - Track - Performance requirements for fastening systems).

• International: UIC (International Union of Railways) leaflets.

• North America: AREMA (American Railway Engineering and Maintenance-of-Way Association) Manual.

• China: TB/T standards (e.g., TB/T 3395 for Fist clips).

• Material Standards: EN 10089, ASTM A125, JIS G4801.

Quality First, Price Best, Service Foremost!
We assure you of our best services at all times!