SKL 12 Rail Concrete Sleeper Railroad Clips With Color Painting

Basic Information
Place of Origin: China
Brand Name: ZhongYue
Certification: ISO9001:2015
Model Number: E clip
Minimum Order Quantity: 10000pcs
Price: Negociable
Packaging Details: double-layer woven bag+free fumigation wooden pallet
Delivery Time: 10 to 30 days according to your order quantity
Payment Terms: T/T, 30% in advance
Supply Ability: 10,000pcs per week
Product Name:: SKL 12 Rail Concrete Sleeper Elastic Rail Clips With Color Painting Application::: Railway, Subway, Mine
Material:: 60Si2MnA 60Si2CrA 55Si2Mn 38Si7 Hardness: For E Clip: 44-48HRC For Skl Clip: 42-47HRC
Fatigue Life: For Dia.18 Is 3 Millions Cycles Without Breaking Surface: Plain (oiled), Oxide Black, Color Painting
Standard Refers: DIN17221, BS970, GB/T1222
High Light:

railway clips


spring steel clips

SKL 12 rail Concrete Sleeper Elastic Rail Clips With color painting


We are engaged in manufacturing and supplying elastic rail clip products which are exclusively used in railways. Fabricated with optimum quality raw materials, these elastic rail clips are designed with high precision which impart high tensile strength and corrosion resistance. Our products can also be customized according to clients' requirement at a client desired price.



The rail elastic clips are used with concrete 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.




Rail clips processing procedures

Rail clips processing procedures are as follow: Shearing-- Heating to forging temperature -- Forming-- Hardening—Tempering — Inspection — Packing.


SKL 12 Rail Concrete Sleeper Railroad Clips With Color Painting 0


ZhongYue , your trustworthy rail clips manufacturer

Enriched with rich railway industrial experience, ZhongYue can offer its clients an extensive range of heavy duty rail fastening clips, made up of premium quality and seamless performance, to be used to fasten rails to underlying tie plates. The rail clips produced by ZhongYue are made up of premium grade spring steel sourced from a reliable and certified long term producer.


After over 10 years’ experience on producing rail elastic clips, ZhongYue has become the largest and most competitive production base of rail clips in China, qualified to tender nationally large and medium scaled rail projects under the China Ministry of Railways, both at home and abroad.


At each single step of manufacturing the clips are stringently tested and completely authenticated. To save time during installation in track, we can provide a special service by pre assembling a SKL clip with a T-bolt and a washer for the customer at our production base before delivery. Besides, corrosion protection layer of the clip surface can be applied.


For all types of rail clips:

  1. E-type, SKL clip, W-type…
  2. Pre-assembly with T-bolt and washer (supplementary service)
  3. Corrosion protection surface
  4. Time saving and transit safe packing
  5. full rail clip dimension available
Name E clip
Type E clip (e1809, e2006,e2007,e2009,etc)
  Skl clip (skl1,skl3,skl12,skl14)
  Or the type by customers’ drawings
Material 60Si2MnA 60Si2CrA 55Si2Mn 38Si7
Chemical composition(%) C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 C:0.56-0.64, Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03 C:0.52-0.60, Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03 C:0.35-0.42, Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03

For e clip: 44-48HRC

For skl clip: 42-47HRC

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
Standard refers DIN17221, BS970, GB/T1222


SKL 12 Rail Concrete Sleeper Railroad Clips With Color Painting 1

Rail Clip Production Process

How do we produce rail clips?

ZhongYue produces the rail clips according the scientific procedures of rail clip production strictly and the specific procedures are as follow:

  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.

Inspection during the production process

How is the quality control of ZhongYue rail clips?


We own a full set of strict quality control system to produce rail clips, from raw material purchasing till the finished clip application. There’s a professional inspection team to check about each process of the production line and every two hour out of the line.

Inspection machine for finished rail clips.

What does ZhongYue use to inspect the finished rail clips?

  1. Brinell Hardness Tester
  2. Carbon and Sulfur Analyzer
  3. Rockwell Hardness Machine to test metallic materials
  4. Automatic Impact Testing Machine
  5. Metallographic Microscope
  6. Automatic High-speed Analyzer
  7. Fatigue Testing Machine
  8. Metallographic Specimen Polishing Machine
  9. Metallographic Specimen Pointing Machine

Zhong yue's products ranges:


5.6 Grade 35# Screw Spike DIN Standard High Hardness with ZHONGYUE Brand



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