Description of W12 Rail Fastening System
The W12 Rail Fastening System meets the operating conditions of Class E, and can be used directly under the operating conditions of Class A~C! In full compliance with EN 13481-3. The following is a detailed introduction:
Components of W12 Rail Fastening System
SKL12 Rail Clips
It is a key component of the W12 Rail Fastening System, usually made of spring steel. It generates a clamping force through its own elastic deformation and fastens the rail tightly on the sleeper.
Hs32 T- bolts with M22-SW39 Hex Nuts and ULs6 Flat Washers
These three parts are used to connect the SKL12 rail clips and the tie plate together.
Ss8 Screw Spikes with FE6 Double-layer Spring Washers
This part is used to fix the tie plate and the sleeper together to ensure the stability and reliability of the fastener.
Rail Pads
Placed between the rail and the tie plate, it has good elastic and shock-absorbing properties. It can absorb the vibrations and impacts generated during the operation of the train, reducing the damage to the sleeper and the roadbed.
Base Plates
The tie plate is a core component of the fastening system, which has four functions including load transmission, structural connection, state adjustment and foundation protection. Its design directly affects the stability, smoothness and durability of the track, especially in heavy-load and high-frequency train operation scenarios.
Functional Features
Efficient Load Distribution:
Evenly spreads loads, minimizing sleeper/foundation damage—ideal for heavy-haul railways.
Precise Adjustment:
Flexibly tunes gauge and vertical alignment to adapt to installation errors and operational deformations.
Easy Maintenance:
Modular design allows independent component replacement, reducing inspection time and costs.
Durability & Damage Resistance:
Isolation protection and anti-corrosion treatment extend service life, suitable for harsh environments.
Strong Compatibility:
Universal interfaces adapt to different rails/sleepers, enabling high-standardization and easy procurement.
Application Scenarios
With its modular design and adjustment capabilities, the W12 Rail Fastening System is widely used in various railway scenarios:
Urban Rail Transit:
Suitable for the high-frequency operation of subways and light rails. The elastic clips and elastic pads buffer vibrations, while the shoulderless design saves space and allows for gauge adjustment.
Switch Areas:
Rigid connections suppress the jumping of switch points, elastic pads ensure close contact, and anti-loosening designs guarantee stability.
Bridge Structures:
Adaptable to temperature changes and vibrations, elastic pads reduce fatigue, and anti-corrosion coatings extend service life.
Sleeper Adaptation:
Rigid connections with concrete sleepers enable height adjustment; on wooden sleepers, they buffer to prevent cracking and allow for quick installation.
Special Scenarios:
The W12 Rail Fastening System, with its efficient load transfer, flexible adjustment, and strong adaptability, has become a reliable choice for railway construction.
Technical Specifications of W12 Rail Fastening System
| Item | Name of Product | Type | Material | Qty For One Sleeper |
| 1 | Rail Clips | SKL12 | 38Si7/60Si2Mn | 4 |
| 2 | T- bolts | HS32-55 | Grade 5.6 | 4 |
| 3 | Hex Nuts | M22, SW=39 | Grade 5 | 4 |
| 4 | Flat Washers | Uls6 | S235/Q235 | 4 |
| 5 | Rail Pads | Zw138/165/6 | EVA | 2 |
| 6 | Double-layer Spring Washers | FE6 | 61SiCr7/65Mn | 8 |
| 7 | Screw Spikes | Ss8-142 | Grade 5.6 | 8 |
| 8 | Base Plates | PR 140/20/160 | S275/S355/35# | 2 |
Advantages
How to Find a Qualified Rail Fastener Manufacturer?
Please choose LTRF.
Why Choose LTRF?
- Strong Technical Expertise
LTRF boasts a dedicated R&D center. Moreover, it maintains long-term collaborations with major industry players such as China Railway, CRCC, and the Academy of Railway Sciences. In addition, it also partners with leading railway universities. As a result, LTRF has been able to develop various innovative fastening systems for both domestic and international markets. Notably, all these systems possess independent intellectual property rights. Indeed, to date, LTRF holds over 30 invention and utility model patents.
- Professional Manufacturing
LTRF always aims for the best. We carefully choose the materials we use and make sure every part is made with great care and skill. And we believe in doing things perfectly, so we keep coming up with new ideas and check the quality of our products very carefully to make sure they’re good.
We work fast to make sure you get your order on time. And we offer good service before and after you buy something. At LTRF, we also focus on what our customers need. We’re committed to making good products and providing great service in everything we do.
- Competitive Pricing + Superior Quality
LTRF control the cost of each process, and the finance department updates the cost calculation regularly.
Furthermore, LTRF’s advanced testing equipment endows the company with comprehensive quality inspection capabilities for the entire fastener system. This meticulous quality-control measure is crucial for ensuring product reliability. Importantly, LTRF holds ISO and CRCC certification for railway products. These certifications not only demonstrate the company’s compliance with international and industry-specific standards but also enhance its credibility in the market.
