As a professional manufacturer dedicated to railway equipment R&D, production and sales, Henan Tiechuang Railway Equipment Co., Ltd. is proud to present the WJ-8 rail fastening system — a core product that empowers the safety and stability of high-speed rail networks across the country. Developed by the China Academy of Railway Sciences, this high-performance elastic fastening system is tailor-made for shoulder-equipped ballastless tracks, setting a benchmark for reliability in high-speed rail operations.
Product Overview: The Backbone of High-Speed Rail Stability
Product Overview: The Backbone of High-Speed Rail Stability
The WJ-8 rail fastening system is a high-performance elastic fastening solution specifically engineered for shoulder-equipped ballastless tracks of high-speed railways. Compatible with 60kg/m rails, it has been widely adopted in 250–350km/h passenger dedicated lines, intercity railways, and mixed passenger-freight lines. As a critical connecting component in track structures, it plays an irreplaceable role in ensuring track stability, operational safety, and riding comfort — laying a solid foundation for smooth and efficient high-speed rail travel.
Product Structure: Integral Design for Optimal Performance
Adopting an integral elastic structure with an iron base plate, the WJ-8 system boasts a complete and refined component configuration, where each part works in harmony to deliver superior performance. The full set includes:
Screw Spike
Flat Washer
Elastic Clip (available in Type W1 and Type X2)
Insulated Gauge Block
Gauge Baffle (available in 11 specifications for general sections and 3 for rail joint sections, with No.7 used for standard gauge)
Rail Pad (optional rubber or composite material)
Iron Base Plate
Elastic Pad Under Iron Base Plate
Embedded Sleeve
Height-adjusting Plate (available for under-rail and under-iron base plate installation)
Core Performance: Engineered for Excellence
The WJ-8 system’s outstanding performance is backed by rigorous testing and precise engineering, making it adaptable to diverse rail operation scenarios:
Applicable Lines: High-speed railways with speeds up to 350km/h, mixed passenger-freight lines, and CRTS I/II ballastless slab tracks. It is also suitable for tracks with a maximum axle load of 230kN and compatible with the operational requirements of 350km/h passenger lines and 250km/h mixed lines.
Elastic Clip Performance:
Type W1: Fastening force > 9kN, deflection of 14mm
Type X2: Fastening force of 6kN, deflection of 12mm (ideal for small-resistance applications on bridges)
Gauge Adjustment: ±5mm per side, with a total adjustment range of ±10mm, enabling precise track alignment.
Vertical Height Adjustment: 0–14mm under the rail plus 0–30mm under the iron base plate, meeting the fine-tuning needs of different track conditions.
System Stiffness:
Type A pad: 30–40kN/mm (suitable for 250km/h mixed passenger-freight lines)
Type B pad: 20–26kN/mm (suitable for 350km/h passenger-dedicated lines)
Insulation Performance: Fully insulated design, perfectly compatible with track circuit signaling, ensuring stable signal transmission. The insulated gauge block and baffle are made of PA66 + 30% GF material, providing strong insulation resistance (> 5 × 10⁶ Ω).
Pull-out Resistance: Embedded sleeve pull-out resistance ≥ 60kN, ensuring structural stability even under high loads.
Material & Fatigue Life: Elastic clips are made of 60Si2Mn / 55CrSi spring steel, with a fatigue life of ≥ 5 million cycles, ensuring long-term reliable operation.
Key Advantages: Why Choose the WJ-8 System from Henan Tiechuang?
Beyond its excellent performance, the WJ-8 system offers unique advantages that make it the preferred choice for modern rail projects — advantages that Henan Tiechuang fully leverages through our professional production and quality control capabilities:
Dual-Clip Compatibility: A single base plate is compatible with both W1 and X2 elastic clips, effectively meeting different longitudinal resistance requirements for subgrade, tunnel, and bridge sections. This design flexibility simplifies installation and reduces inventory costs for project parties.
Superior Vibration & Noise Reduction: Equipped with double-layer elastic pads (rail pad and elastic pad under iron base plate), the system effectively dampens vibrations and reduces noise generated by train operation — a key advantage for urban rail transit and near-residential rail sections.
Precise Adjustment: Millimeter-level gauge and height adjustment capabilities allow for accurate track fine-tuning, ensuring the track remains in optimal condition even after long-term operation.
Exceptional Durability & Corrosion Resistance: All components undergo professional anti-corrosion treatment, enabling the system to adapt to harsh environments such as humidity, acidity, alkalinity, and low temperatures. This durability significantly extends the service life of the track and reduces maintenance costs.
Easy Installation & Maintenance: Standardized components (consistent with Henan Tiechuang’s strict production standards) enable fast construction, convenient replacement, and efficient maintenance, improving project progress and reducing operational downtime.
Stable & Reliable: The system has passed full testing and certification in accordance with national railway standards, including GTJ 0028-2024 (the latest national railway inspection standard for WJ-8 fasteners), ensuring compliance and reliability in every application.
Wide-Ranging Applications
With its versatile performance, the WJ-8 rail fastening system is widely used in various rail projects, including:
High-speed railways (350km/h and below)
Passenger dedicated lines and intercity railways
Mixed passenger-freight railways (max axle load 230kN)
Ballastless tracks for urban rail transit
It has been successfully applied in major high-speed rail projects such as the Zhengzhou-Xi’an Passenger Dedicated Line and the Beijing-Tianjin Intercity Railway, performing stably in long-term operation.
Quality Assurance: Henan Tiechuang’s Commitment
At Henan Tiechuang Railway Equipment Co., Ltd., quality is our top priority. Established in 2015 and based in Anyang, Henan, we have a professional technical team and complete production and testing equipment, adhering to ISO9001 quality management system certification. Our WJ-8 rail fastening system is manufactured in strict compliance with T∕ZZB 0753-2018, GTJ 0028-2024, and other railway industry standards:
Full-process quality control, covering raw material selection, production, and finished product inspection
100% factory inspection to ensure every set of products meets standard requirements
Third-party test reports and product certificates available for verification
Long service life supported by professional technical guidance and timely spare parts supply
About Henan Tiechuang
Henan Tiechuang Railway Equipment Co., Ltd. is a professional enterprise focusing on the R&D, production, and sales of railway equipment. Our main products include high-speed rail fasteners (such as WJ-8, WJ-7, VII-type), rail accessories, turnout components, and high-speed rail fine-tuning parts. With a registered capital of 50.08 million yuan and rich industry experience, we are committed to providing high-quality, reliable railway products and professional services to domestic and foreign rail projects.
Whether you are undertaking a high-speed rail project, an intercity railway, or an urban rail transit project, the WJ-8 rail fastening system from Henan Tiechuang is your trusted partner for stable, safe, and efficient track operation. Contact us today to learn more about our products and solutions!
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