Rail Fish Plates Nail Rail

Rail Fish Plates Nail Rail

Railway fish plate, also called rail joint or splice bar, is a metal bar connected to the ends of two railroad rails to join them together. By experience, high quality railway fish plates can effectively reduce the influence of wheels to the jointing sections of the steel rail and increase the steadiness and continuity of the train when passing through the jointing sections. As an important part of rail components, railway fish plates are widely used both in light rail and heavy rail to guarantee the safety of railroad transportation.
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Description
Technical Parameters

Installation Precision & Maintenance Requirements

Model No. Applicable Rail Grade Bolt Hole Tolerance (mm) Joint Smoothness Requirement (1m Straightedge Gap, mm) Bolt Preload (N·m) Maintenance Cycle Core Maintenance Items Wear Limit for Replacement Compliance Standards
FP-ORD50 Ordinary Rail (50kg/m, 120km/h) ±0.2 ≤0.5 250-300 3 Months 30% torque sampling; Debris cleaning; Magnetic particle crack test Bolt hole expansion >1mm; Crack >3mm GB/T 11265, UIC 860
FP-HS60N High-Speed Rail (60N, 350km/h) ±0.15 ≤0.3 400-500 1 Month 100% torque verification; Bi-monthly grinding (Ra≤6.3μm); Gap monitoring Bolt hole expansion >0.8mm; Smoothness >0.5mm EN 13674-2, UIC 60
FP-HH75 Heavy-Haul Rail (75kg/m, 27t Axle Load) ±0.2 ≤0.4 350-450 20 Days Torque retightening; Weekly crack inspection; Bolt thread check Bolt hole expansion >0.9mm; Impact toughness <34J (-20℃) AREMA M-100, GB/T 36668
FP-CRANE100 Crane Rail (QU100) ±0.25 ≤0.6 300-380 2 Months Load-bearing surface inspection; Anti-corrosion coating touch-up Bolt hole expansion >1.2mm; Surface wear >2mm DIN 5902, AS 1085.10
FP-LIGHT24 Light Rail (24kg/m, 80km/h) ±0.3 ≤0.8 200-250 6 Months Torque spot check; Visual wear inspection Bolt hole expansion >1.5mm; Joint displacement >2mm BS 47-1, NF F 500-50

Rail Fish Plates Nail Rail

Collaborative Lifecycle & Adaptation Optimization

Model No. Base Material Lifespan Extension Process Collaborative Product Lifespan (Years) Vibration Synergy Requirement (Frequency Deviation) Lifespan Adjustment Method Synchronous Replacement Cycle Core Adaptation Advantage Compliance Standards
FP-SYNC50 Q355B Carbon Steel Zinc-Aluminum Coating (80μm) Rail:20; Fish Plate:15; Elastic Strip:15; Pad:10 ≤15% Adjust bolt torque (-5%) Replace at rail 18-year service Balanced cost for ordinary lines GB/T 700, UIC 860
FP-SYNC60 40CrNiMo Alloy Steel Low-Temperature Nitriding (HV600) Rail:20; Fish Plate:18; Elastic Strip:18; Pad:15 ≤10% Optimize clamping force Replace at rail 19-year service Wear reduction (60% less than standard) EN 10083-3, REACH
FP-SYNC75 Q460 High-Strength Steel Dacromet Coating + Sealant Rail:25; Fish Plate:22; Elastic Strip:20; Pad:18 ≤8% Material hardness enhancement Replace at rail 23-year service Resists heavy-haul impact (1.26x impact toughness) AREMA, ASTM A1011
FP-SYNCUIC UIC 60 Rail Matching Chromium-Free Ceramic Coating Rail:18; Fish Plate:18; Elastic Strip:18; Pad:18 ≤12% Preload reduction (-10%) Unified 18-year replacement Eliminates lifecycle deviation UIC 864, ISO 14001

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Rail Fish Plates Nail RailRail Fish Plates Nail Rail

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