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Heavy Haul Fish Plate
Rail Joint System Heavy Haul Fish Plate is specifically designed to withstand the punishing conditions of 35-40 ton axle load operations in mining, bulk freight, and heavy industrial applications. These ultra-robust joint bars combine materials with advanced engineering to deliver unmatched...
Features
Heavy Haul Fish Plate is specifically designed to withstand the punishing conditions of 35-40 ton axle load operations in mining, bulk freight, and heavy industrial applications. These ultra-robust joint bars combine materials with advanced engineering to deliver unmatched performance where conventional fishplates fail.
Material
Heavy Haul Fish Plate - Extreme-Duty Rail Joint System
Base Material
Micro-alloyed 38Si7 forging steel
Alternative: AISI 4340 aircraft-grade alloy
Optional: 2205 duplex stainless for corrosive environments
Metallurgical Enhancements:
Quench & tempered to HRC 32-36
Boronized surface treatment (1500HV)
Stress-relieved after machining
Mechanical Performance
Tensile Strength: 1100-1300 MPa
Impact Resistance: 50J at -40°C
Fatigue Life: 8+ million cycles at 35-ton loads
Wear Resistance: 3× standard plate life
Bolt Load Retention: 95% after 5MGT
FEATURE 01
Extra-Thick Profile - 30-36mm cross-section
FEATURE 02
Reinforced Bolt Zones - 20% thicker around holes
FEATURE 03
Contoured Contact Surface - 100% rail profile match
FEATURE 04
Thermal Expansion Slots - For temperature extremes
FEATURE 05
Weld-Ready Design - Beveled edges for field repairs
FEATURE 06
Engineered for the Most Demanding Freight Corridors
Our factory & quipment
Why Our Heavy Haul Fishplates?
Reduced Downtime
60% fewer joint replacements
Safety Certified
Zero fatigue failures in service
Custom Solutions
Rail-profile specific engineering
Non-Destructive Testing
ultrasonic inspection
FAQ
Q: What is the function of a rail fish plate?
A: It connects two rail ends securely, maintaining alignment and distributing load to prevent rail deformation.
Q: What materials are used?
A: High-carbon steel (55#/Q235) or alloy steel (B7) with hot-forged & heat-treated for durability.
Q: What's the service life in high-traffic lines?
A: 10-15 years under standard loads (25-30 ton axles), with thicker designs for mining/heavy-haul.
Q: Are bolt holes pre-drilled for easy installation?
A: Yes, precision CNC-drilled holes with standard spacing (e.g., 4-hole or 6-hole patterns).
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