A rail fish plate is a joint bar that enables separate rail lengths to function as a continuous structural system by transferring loads through bolted steel interfaces rather than rail-end contact alone. GNEE RAIL supplies fish plates for GB rails, UIC rails, DIN536 A-series crane rails, QU crane rails, JIS standards, AS1085 rails, BS11 profiles, and AREMA/ASCE rails, providing compatibility checks between rail profile and joint hardware.
Specifications of Various Standards of Railway Fish Plate
| Fishplate for UIC Standard Steel Rail | |||
| Steel Rail Type | Steel Rail Weight (KG/M) | Fishplate Standard | Fishplate Material |
| UIC54 | 54.43 | UIC | 45#,55# |
| UIC60 | 60.34 | ||
| Fishplate for BS Standard Steel Rail | |||
| BS50'O' | 24.833 | BS 47-1 | 55#,45# European Grade 700 |
| BS60A | 30.618 | ||
| BS75R | 37.041 | ||
| BS80A | 39.761 | ||
| BS90A | 45.099 | ||
| BS100A | 50.182 | ||
| BS113A | 56.398 | ||
| Joint Bar for AREMA 2007 Standard Steel Rail | |||
| 100RE(TR50) | 50.35 | AREMA 2007 | 45#,55#,AREMA Grade Steel |
| 115RE | 56.9 | ||
| 115-119RE | |||
| 132RE | 65.31 | ||
| 133RE | 66.1 | ||
| 136RE | 67.41 | ||
| 132-136RE | |||
| Fishplate For Chinese Standard Steel Rail | |||
| GB15KG | 15.2 | YB226-63 | Q235,45# |
| GB18KG | 18.06 | YB225-63 | |
| GB22KG | 22.3 | YB14-63 | |
| GB24KG | 24.46 | ||
| GB30KG | 30.1 | YB351-63 | |
| GB38KG | 38.733 | TB/T 2345-2008 | 45#,55# |
| GB43KG | 44.653 | ||
| GB50KG | 51.514 | ||
Types of Rail Joint Bar
| Classification Category | Type of Rail Joint |
| By Position on Track | Square Joint |
| Staggered Joint | |
| By Position of Sleepers | Supported Joint |
| Suspended Joint | |
| Bridge Joint | |
| By Performance & Application | Ordinary (Bolted) Joint |
| Compromise Joint | |
| Conductive Joint | |
| Insulated Joint (IRJ) | |
| Welded Joint | |
| Frozen Joint | |
| Expansion Joint (REJ) |
What types of insulated rail joints are there?
Bonded insulated rail joints
Bonded insulated rail joints are high-strength, factory-assembled rail connectors that electrically isolate track circuits for signaling, while securing together continuously welded rails (CWR). They use epoxy, insulation, and bolts to form a durable, rigid, and impact-resistant connection. These joints minimize noise, reduce maintenance, and ensure long-term structural integrity.
Key Features and Functions:
- Electrical Insulation: Prevents current from flowing between rail ends, enabling precise train detection and crossing signals.
- High Strength: Designed for heavy-duty, high-speed, and CWR lines to transfer longitudinal forces.
- Components: Consists of epoxy adhesive, insulated fishplates, end posts, and high-strength fasteners (e.g., A-490 bolts or huck pins).
- Factory-Manufactured: Unlike field-assembled joints, these are manufactured under controlled conditions for better quality and durability.
- Performance: Offers reduced maintenance compared to conventional joints, with specialized, wear-resistant designs.
Benefits:
- Improved Signaling: Essential for safety-critical signal control systems.
- Reduced Impact: Designed to create an impact-free, smoother transition, minimizing wear on wheels and rails.
- Long Life: With proper installation, they offer long service life and durability in various climates.
Polyurethane insulated rail joints
Polyurethane insulated rail joints are specialized, heavy-duty railway fasteners featuring high-strength steel joint bars coated or bonded with durable polyurethane, designed to electrically isolate rail sections for signaling while withstanding severe flexing, abrasion, and environmental stress. They offer superior insulation and low maintenance, ensuring stable, noise-reducing, and long-lasting track circuit integrity.
Key Features and Advantages:
- High-Dielectric Insulation: The dense polyurethane material provides excellent insulation between rail tracks and joints, preventing electrical shorts in track circuits.
- Durability: Formulated to resist deterioration from UV rays, ozone, weathering, and the impact of heavy rail traffic.
- Reduced Maintenance: These joints are engineered to minimize cold flow (deformation under pressure) and reduce the need for regular maintenance.
- Structure: They consist of micro-alloy joint bar sections (typically 4 or 6 holes) that are factory-bonded with polyurethane, offering high-strength and stability.
- Easy Installation: Designed for simple installation, with insulating bushings often pre-installed in the bolt holes at the factory.
- Environmental Resistance: Highly resistant to environmental damage.
Common Applications:
- Track Signaling: Essential in railway tracks equipped with automatic signaling systems.
- Heavy Duty Rail: Used in areas with high-intensity rail traffic.
- Wide Temperature Range: Suitable for use in varying climates, often with a resistance range of -55°C to 85°C.
Founded in 2008, GNEE RAIL is a leading global manufacturer and supplier of railway components, specializing in high-quality rail fish plates (joint bars/splice bars) with strong production capacity and global service capabilities.
Our rail fish plate portfolio is comprehensive and compliant with international standards including UIC, AREMA, BS, DIN, and GB, covering light rail (8kg-30kg), heavy rail (38kg-75kg), and crane rail (QU70-QU120) systems. We offer diverse types such as insulated joint bars, bulged fish plates, and compromise rail joints,with precise specifications (4-hole/6-hole, 24-inch/36-inch), ensuring excellent mechanical performance.We uphold strict quality control supported by ISO 9001:2015 certification, an in-house inspection center, and third-party audits by SGS and BV. Our one-stop service includes customization, production, packaging, and after-sales support, tailored to clients' project needs.
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