As core components ensuring track safety, railway fastening systems require rigorous manufacturing processes to meet high-strength and high-stability standards. GNEE RAIL, a professional firm specializing in international railway fastener trade, owns stable production bases and a professional QC team to ensure every product batch complies with international railway industry standards. After years of development, we've established a comprehensive export service system, offering end-to-end support from product selection and quality control to logistics.
Raw Material Procurement and Inspection
The production process starts with sourcing and inspecting materials:
GNEE RAIL procures premium steel, rubber, etc., such as 60Si2CrVA spring steel for elastic clips and composite natural-synthetic rubber for padding plates.
Incoming materials undergo spectral analysis and mechanical property tests to verify compliance with national/industry standards for chemical composition, tensile strength, hardness, etc. Non-conforming materials are rejected.
Component Manufacturing
Key manufacturing steps include:
Elastic Clips: Formed via hot forging, quenching-tempering, and surface anti-corrosion treatment. Hot forging shapes the steel, heat treatment enhances elasticity-toughness, and zinc plating/coating boosts corrosion resistance.
Spiral Spikes: Cold-headed and threaded by rolling machines to ensure precise fit with embedded sleeves.
Rubber Pads: Prepared through internal mixing and vulcanization to meet dimensional and elasticity standards.
Assembly and Pre-Installation
After component manufacturing:
Components (clips, spikes, gauge retainers, pads) are assembled per system types (e.g., SKL, Type II).
Some systems are pre-installed on sleepers at the factory (e.g., SKL components fixed to concrete sleepers in advance) to reduce on-site workload.
Quality Testing and Control
Quality checks span the entire process:
Beyond raw material tests, GNEE RAIL performs:
Dimensional measurements (e.g., clip clamping force, spike torque)
Non-destructive testing (crack detection)
Simulated operation tests (dynamic load stability/durability).Example: Fatigue testing machines simulate millions of train passes to verify clip fatigue resistance.
Packaging and Delivery
Final steps include:
Classifying and packaging products with quality reports for shipment to construction sites.
Maintaining a traceability system recording material batches, process parameters, etc., for post-sale quality tracking.
This strict manufacturing process ensures railway fastening systems deliver reliable performance to safeguard track safety.
