W14 Rail Fastening System

Description

The SKL14 rail fastening system is a common rail fastening system. The following is a detailed introduction to its components, working principle, functional features, and application scenarios:

Components

• Rail clip（SKL14）: It is a key component of the SKL14 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.
• Insulated gauge block（wfp14k-12）: It is used to maintain the gauge of the rail and also serves as an insulating function to prevent the current from being transmitted from the rail to the sleeper and avoid short circuits in the track circuit.
• Rail pad（ZW 148*185*6/ZW /ZW 148*165*6, etc.）: Placed between the rail and the sleeper, 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.
• Screw spike(SS35/DHS35/SS25/DHS25)with Uls7 flat washer: They are used to fix all components of SKL14 rail fastening system on the sleeper to ensure the stability and reliability of the fastener.
• Dowel(Sdu9/Sdu25): It is pre-embedded in the sleeper and cooperates with the SS35/DHS35/SS25/DHS25 Screw spike to form a reliable anchorage, which can bear the running load of the train and prevent the fastener from loosening.

Working Principle

• The SKL14 rail fastening system mainly relies on the elastic deformation of the SKL14 rail clips to achieve the buckling and fixation of the rail. During installation, the SKL14 rail clip is installed on both sides of the rail. Through the tightening force of the SS35/DHS35/SS25/DHS25 Screw spike, the elastic clip undergoes elastic deformation, thus applying a certain clamping force to the rail. This clamping force can effectively prevent the lateral and longitudinal displacement of the rail during the train operation and ensure the stability of the rail gauge. At the same time, the elastic effect of the rail pad can absorb the vibrations and impacts generated when the train passes, reducing the damage to the track structure and playing the role of shock absorption and noise reduction.

Functional Features

• Good elasticity: Components such as the SKL14 rail clip and Rail pad have good elasticity, which can adapt to various forces generated during the train operation and ensure the smoothness and stability of the track.
• Reliable clamping force: The clamping force provided by the SKL14 rail clip can ensure a tight connection between the rail and the sleeper, effectively preventing the rail from creeping and the rail gauge from expanding.
• Good insulation performance: Components such as the wfp14k-12 insulated gauge block and rail pad have good insulation performance, which can meet the requirements of the track circuit and ensure the accuracy and reliability of signal transmission.
• Shock absorption and noise reduction: Components such as the rail pad can effectively absorb the vibrations and noises generated during the train operation and reduce the impact on the surrounding environment.
• Convenient installation and maintenance: The SKL14 rail fastening system has a relatively simple structure, which is convenient for installation and disassembly, making it easy for daily maintenance and inspection work.

Application Scenarios

• Ordinary railways: The SKL14 rail fastening system is widely used in various ordinary railway lines, including mainline railways, branch railways, and local railways etc., and can meet the operation requirements of trains at different speed levels.
• Urban rail transit: In urban rail transit lines such as urban subways and light rails, the SKL14 rail fastening system has also been widely applied. Its good elasticity and shock absorption performance can effectively reduce the vibration and noise pollution to the urban environment during the train operation.
• Heavy-haul railways: After appropriate improvement and reinforcement, the SKL14 rail fastening system can also be applied to heavy-haul railway lines. It can withstand the huge pressure and impact force brought by heavy-haul trains and ensure the stability and reliability of the track structure.

Technical Specifications

Advantages

How to Find a Qualified Rail Fastener Manufacturer?

Please choose LTRF.

Why Choose LTRF?

• Strong Technical Expertise

LTRF has a dedicated R&D center and maintains long-term collaborations with major industry players such as China Railway, CRCC, and the Academy of Railway Sciences, as well as leading railway universities. And LTRF has developed various innovative fastening systems for domestic and international markets, all of which possess independent intellectual property rights. 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 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. 
LTRF advanced testing equipment ensures comprehensive quality inspection capabilities for the entire fastener system. Additionally, LTRF hold ISO and the CRCC certification for railway products.