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.
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:
- E-type, SKL clip, W-type…
- Pre-assembly with T-bolt and washer (supplementary service)
- Corrosion protection surface
- Time saving and transit safe packing
- full rail clip dimension available
|Type||E clip (e1809, e2006,e2007,e2009,etc)|
|Skl clip (skl1,skl3,skl12,skl14)|
|Or the type by customers’ drawings|
|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
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|
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:
- Raw material: Premium grade spring steel sourced from a reliable and certified
long term producer.
- Shearing: The spring steel bar has to be sheared as per length required.
- Heating: to forging temperature (950-1000 degrees Celsius), but over
heating shall be avoided to check decarburization.
- Forming: Proper heated bar is transferred to power press for forging.
- Hardening: The forged rail clips are transferred to quenching tank.
Dimensional accuracy and quench hardness of rail clips are checked
- Tempering: The rail clips are tempered at about 350 Celsius to achieve
appropriate toughness in the spring.
- Inspection: The products are then checked thoroughly as per China CRCC and
customer required specification and design.
- 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
Inspection machine for finished rail clips.
What does ZhongYue use to inspect the finished rail clips?
- Brinell Hardness Tester
- Carbon and Sulfur Analyzer
- Rockwell Hardness Machine to test metallic materials
- Automatic Impact Testing Machine
- Metallographic Microscope
- Automatic High-speed Analyzer
- Fatigue Testing Machine
- Metallographic Specimen Polishing Machine
- Metallographic Specimen Pointing Machine
Zhong yue's products ranges:
- Rail Fastening
- Rail Sleeper Screw
- Rail Spike
- Railway Bolt
- Elastic Rail Clip
- Rail Shoulder
- Rail Anchor
- Rail Tie Plate
- Rail Clip
- Railway Washer
- Rail Nylon Insulator
- Rail Pad
- Rail Plastic Sleeve
- Rail Fish Plate
- Brake Block
- Rail Nul
- Rail Fastening System
- Crane rail