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DJK5-1 Metro Fastening System
DJK5-1 Metro Fastening System
The DJK5-1 rail fastening system, as an elastic separated fastening solution, plays a critical role in urban rail transit and railway yard applications. Its structural design, performance advantages, and practical applications demonstrate targeted engineering solutions and professional execution.
Structurally, each component features specialized functions and material selections.
The T-bolt, manufactured from high-quality 35 carbon steel with zinc-plated surface treatment, incorporates a unique T-head design that precisely engages with circular holes in the gauge plates, effectively preventing vibration-induced misalignment.
The fastener assembly combines nuts with flat washers made of heat-treated 65Mn steel, providing enhanced elastic properties to improve connection stability.
The spring clip, serving as the core load-bearing element, utilizes 60Si2Mn spring steel processed through quenching and medium-temperature tempering to achieve optimal elasticity and fatigue resistance. Available in Type A (8kN clamping force with 9mm deflection) and Type B (9kN clamping force with 8mm deflection) variants, these clips accommodate different rail sections while maintaining consistent clamping performance.
DJK5-1 Metro Fastening System Performance Advantages
Precise Gauge Adjustment (±12mm)
Achieved by replacing gauge blocks (1mm thickness increments) with left/right combination options to accommodate track variations during construction and operation.
Optimal Vibration Damping (90-120 kN/mm Static Stiffness)
Ensures efficient load transfer while absorbing vibrations/impacts, minimizing subgrade/sleeper damage and extending track service life.
Superior Environmental Resistance
- Metallic Components: 480-hour salt spray test (red rust-free standard).
- Rubber Components: Stable performance from -40°C to +60°C, suitable for diverse climates.
Application Scenarios of DJK5-1 Rail Fastening System
Rail Yards (50kg/m Rails)
Designed for low-speed/high-frequency operations in:
• Maintenance depots
• Parking inspection bays
• Train washing lines
Features: High longitudinal impact resistance with stable clamping force (8-9kN) and anti-uplift anchors (≥60kN) to withstand cyclic loading.
Ballasted Track Sections
Typical applications:
• Depot approach tracks
• Test line ballast beds
Advantages: ±12mm gauge adjustability and leveling shims compensate for track irregularities, ensuring alignment stability on less precise foundations.
GNEE RAILWAY RAILWAY focuses on the research and development and manufacturing of railway fastening systems, providing a full range of fastener products such as spring clips, bolts, gaskets, etc., which strictly comply with international EN, ISO and other quality standards. With 15 years of industry experience, it has provided stable and reliable fastening solutions for railway projects in many countries around the world, and can customize products of different specifications according to customer needs to ensure perfect matching with various types of sleepers. We implement full-process quality inspection from raw material procurement to finished product delivery, support small batch trial orders to large-scale supply, deliver on time, and respond quickly to services. We are your trusted rail safety partner.
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