Products
Concrete Sleeper Railway Fastener Cast Iron Rail Shoulder
Product Overview 请替换当前内容 After years of development, on the basis of the company's high penetration express delivery network covering the country and major countries and regions around the world, we provides customers with integrated supply chain solutions through procurement, production,...
Features
请替换当前内容 After years of development, on the basis of the company's high penetration express delivery network covering the country and major countries and regions around the world, we provides customers with integrated supply chain solutions through procurement, production, circulation, sales and after-sales.
Technical Specifications
| Parameter | Standard Shoulder | Heavy-Duty Shoulder | Insulated Shoulder |
|---|---|---|---|
| Material Grade | EN-GJS-400-18 | EN-GJS-500-7 | EN-GJS-400 + Nylon Inserts |
| Load Capacity | 25kN lateral | 35kN lateral | 20kN lateral |
| Weight | 3.8kg | 5.2kg | 4.1kg |
| Hardness | 180-220 HB | 200-240 HB | 170-200 HB |
| Temperature Range | -30°C to +80°C | -40°C to +100°C | -50°C to +90°C |
Key Design Features
Precision Engineering
CNC-machined contact surfaces (±0.2mm tolerance)
Optimized rail claw geometry (12°-15° engagement angle)
Integrated fastening lugs (M24/M30 compatible)
Advanced Material Properties
Spheroidal graphite iron microstructure
18% minimum elongation at break
400MPa minimum tensile strength
Salt-spray resistant coating (1000+ hours)
Performance Enhancements
Vibration-damping ribs (reduces noise by 6-8dB)
Wear indicators (laser-etched gauges)
Anti-corrosion channels (moisture drainage)
Verify shoulder pocket dimensions
Clean seating surface
Apply corrosion inhibitor (zinc-rich compound)
Position with alignment jig (±1mm tolerance)
Secure with temporary bracing
Torque fasteners to 300Nm (M24) or 450Nm (M30)
Verify full rail foot contact (0.1mm feeler gauge test)
Gauge measurement (1435mm ±2mm)
Shoulder deflection test (<0.5mm at 20kN)
Electrical continuity test (where applicable)
1
10 million load cycles at 25kN
2
<1mm longitudinal movement/year
3
<0.01mm/year in C4 environments
4
5 years standard inspection
Our Service Processes
Pre-sales Consultancy
1
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Confirmation of order
2
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Production
3
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Multi-Channel Shipping
4
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Confirmation of recei
5
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After-sale Services
6
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