Locking Railway Safety with Reliable W300 Fastening Systems
Rail safety takes precedence over passenger comfort, freight efficiency, and infrastructure durability. A crucial element of safe rail operations is the fastening system, which joins rails to sleepers or baseplates while ensuring correct gauge and absorbing dynamic loads. Contemporary rail systems—particularly high-speed lines, heavy-haul tracks, and urban metros—demand fastening solutions with high durability, stability, and low maintenance.

SFFST’s W300 Fastening System is the answer to these needs. It is a heavy-duty, versatile solution that can be used for both new construction and track upgrading, providing long-term operating efficiency and safety.
Overview of the W300 Fastening System
What Is the W300 Fastening System
W300 Fastening System is a high-performance rail fastening system that secures rails and provides controlled movement and energy dissipation. This synergy enhances track stability, minimizes vibration, and prolongs the lifespan of the infrastructure. The system is modular, corrosion-resistant, and fully compatible with standard track gauges.
Key Features
- Durable and Modular Components: Modular construction and anti-corrosion material make installation, inspection, and replacement easier.
- Optimized Clamping Force: Rail clips hold the rail in place with assured elasticity under dynamic loading.
- Vibration and Shock Control: Polyurethane pads and insulators cushion the impact of passing trains, minimizing noise and track wear.
- Wide Compatibility: Compatible with P60 / UIC60 rail profiles commonly used in national and international railway systems.
Advantages Over Traditional Systems
- Enhanced resilience to environmental stress, including water, UV radiation, and temperature changes.
- Less maintenance needs due to modular parts and long-lasting materials.
- Improved ride quality and stability, especially crucial for heavy-haul and high-speed rail.
- Tested according to BS EN 13146-6:2012 and designed to meet the performance requirements of EN 13481-2:2022.
W300 Fastening System Core Components
Rail Clips
W300 Fastening System is furnished with advanced W-Tension Clamps, manufactured on fully automatic lines for uniform quality. Clips securely fasten rails in position while providing the elasticity to take up dynamic loads, minimizing track stress and maintenance requirements.
Insulators and Pads
Polyurethane rail pads and baseplate insulators electrically insulate rails from sleepers and baseplates, control vibration, and distribute loads evenly.
Baseplates and Anchoring Mechanisms
High-strength forged steel baseplates, in combination with embedded nuts, bolts, and dowels, anchor the rail-sleeper assembly. This provides even anchoring under heavy load conditions and in varying track conditions.

Compatibility with Railway Components
Rail Types
The W300 Fastening system is pre-dimensioned for P60 rails but can be used with other standard rail profiles. This facilitates its use in national railway projects and foreign applications.
Sleeper Materials and Configurations
The system is appropriate for composite, steel, and concrete sleepers. The flexible design of its baseplate enables use on varying track formations, such as slab tracks and ballasted tracks.
Adaptability to Track Conditions
The W300 Fastening system operates under varying conditions, ranging from urban metro lines to freight lines in mountainous terrains. The system accommodates changes in curvature, gradient, climatic exposure, and load requirements, as verified by comprehensive in-service testing.
Performance Benefits in Railway Projects
Improved track stability and safety
The W300 Fastening system offers excellent lateral and vertical restraint to preserve track geometry during dynamic loading. The result is better safety in passenger and freight operations.
Resistance to environmental stress and fatigue
Every part is thoroughly tested according to international specifications. All components are designed for easy inspection, disassembly, and reassembly, supporting efficient maintenance throughout the service life.
With parts designed to withstand corrosion, UV degradation, moisture ingress, and thermal cycling, W300 Fastening system provides extended service life.
Low maintenance needs
With its modular construction and high-quality materials, the W300 Fastening system minimizes inspection frequency and intervals of replacement. This translates to life-cycle cost savings for operators—a key consideration for large or remotely located infrastructure.
Why SFFST’s W300 Fastening System is Trusted
SFFST’s devotion to quality and innovation
SFFST plans to invest over 50,000㎡of industrial land in Zhejiang Province. The total investment in SFFST amounts to over 50 million RMB, with a yearly production capacity of 5 million sets of rail fastening systems. Over 100 sets of imported automated production equipment are used on different specialized lines. All works adhere to the ISO9001 Quality Management System and CRCC Certification standards.

Adherence to industry standards
Our products meet the EU directives by adhering to standards such as BS EN 13146-6:2012 and BS EN 13481‑2:2022. Every batch is subjected to rigorous performance testing in our own labs before being applied to any project.
Proven track record in various projects
We have provided fastening solutions for prestigious railway projects such as:
- Morocco Kenitra-Marrakech High-Speed Railway Project.
- Fenghong and Jingshen Heavy-Haul Railway.
- Chengdu Metro Line 17.
- Wuhan-Guangzhou High-Speed Railway.
These samples illustrate our capability to provide dependable systems in differing geographic and operating conditions.
Conclusion
The W300 Fastening System delivers a reliable, durable, and low-maintenance solution for modern railway infrastructure. Designed to meet international standards and perform under demanding conditions, it supports safer and more stable track performance for high-speed, heavy-haul, and metro applications. Backed by SFFST’s advanced manufacturing capabilities and proven project experience, the W300 Fastening system is a trusted choice for railway operators and contractors seeking long-term value and operational efficiency.
FAQ
Q: Why is W300 Fastening System appropriate for high-speed rail?
A: Optimized elastic characteristics, corrosion-resistant materials, and extremely accurate clamping mechanisms provide stability at high speeds.
Q: Is it possible to use the W300 Fastening system with the current P60 rails?
A: Yes. The system is engineered to operate with P60 rails that are common throughout China’s national rail system.
Q: How does SFFST guarantee quality control?
A: SFFST uses superior raw materials. The structured running of the ISO9001 Quality Management System carries out the “6S” Management System. All products are inspected as per international standards before delivery.
Q: Does SFFST also assist in installation?
A: Offering services of on-site construction consulting, workers’ training for installation.