Definition & Function
Fishplates (or rail joint bars) are critical components for connecting rail ends, serving three primary functions:
- Mechanical Joint: Transmits dynamic loads and bending moments
- Electrical Continuity (for electrified tracks): Maintains circuit integrity
- Geometric Control: Preserves gap width and railhead alignment
Types Comparison
|
Type |
Design Features |
Material Standard |
Rail Compatibility |
Bolt Config |
Int'l Equivalent |
|---|---|---|---|---|---|
|
Standard |
Double-ended with drainage groove |
TB/T 2344-2018 |
50-75kg/m rails |
4/6-hole |
AREMA 4-hole |
|
Insulated |
Fiberglass/nylon composite |
TB/T 2973-2016 |
60kg/m electrified |
6-hole insulated |
Pandrol JP5 |
|
High-Strength |
Thickened/quenched |
EN 13674-4 |
60-75kg/m heavy-haul |
6-hole HS bolts |
Vossloh J75 |
|
Compromise |
Seamless joint adaptation |
Q/CR 562-2017 |
60kg/m+ CWR |
Friction-lock |
Russian P65 |
Gnee-Professional supplier
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