A rail fish plate is a mechanical coupling device that ensures rail ends remain aligned and structurally cooperative under repeated traffic loads and thermal movement. It prevents joint loosening and uneven wear. GNEE RAIL supplies fish plates matched to GB rail standards, UIC standard rails, DIN536 and QU crane rail applications, JIS profiles, AS1085 rails, BS11 sections, and AREMA/ASCE rail sizes, with installation parameter guidance.
What is DIN Standard Railway Fishplate?
DIN standard railway fishplates (or joint bars) are crucial components conforming to DIN 5902-1995 standards, designed to securely connect rail ends, ensure track continuity, stability, and proper alignment. They are commonly manufactured using Chinese steel grades Q235 or Q295 for both heavy and light rails.
| Attribute | Details |
|---|---|
| Type |
DIN Standard Fish Plate Rail Joint Bar |
| Standard | DIN5902:1995 |
| Brand | GNEE RAIL |
| Product Name | Railway Fish Plate / Rail Joint Bar |
| Surface Finish | Natural (uncoated) or custom paint |
| Certification | ISO9001:2008 |
| Core Keywords | rail joint bar, DIN fish plate, railway fastener |
| Application | Connects rails in cranes, railways, ports, and industrial systems |
GNEE RAIL supplies DIN fish plates in both 4-hole and 6-hole configurations to match different rail sizes and joint strength requirements. Each plate is engineered to deliver reliable performance in railway, industrial track, and heavy-load applications.
Specification of DIN Standard Railway Fishplate
| FI 10 | FI 14 | FI 18 | FI 20 | FI 30 | FIA 33 | FIB 33 | FI 41-49 | FI 41-54 | |
| a₁ | 45,8 | 54,5 | 63,6 | 68,4 | 71,5 | 93 | 93 | 94 | 95,9 |
| a₂ | 45 | 53,5 | 62,6 | 66,8 | 70 | 90,5 | 90,5 | 92,8 | 94,4 |
| a₃ | 43,55 | 51,75 | 60,35 | 64,95 | 67,44 | 89,25 | 89,25 | 85,67 | 89,07 |
| b₁ | 9 | 12 | 14 | 15 | 20,6 | 20 | 20 | 25 | 30 |
| b₂ | 7,5 | 10 | 12 | 13 | 15,9 | 18 | 18 | 20 | 30 |
| b₃ | 8,5 | 11 | 13 | 13,8 | 17,6 | 15 | 15 | 25 | 25 |
| b₄ | 8,5 | 11 | 13 | 13,8 | 17,6 | 15 | 15 | 25 | 20,5 |
| c₁ | 16,6 | 20 | 22,4 | 23,2 | 30,15 | 34 | 34 | 41¹⁾ | 46²⁾ |
| c₂ | 7,6 | 8 | 8,4 | 8,2 | 9,55 | 14 | 16 | 16¹⁾ | 16²⁾ |
| c₃ | 11,85 | 13,5 | 14,9 | 15,1 | 18,35 | 21,5 | 21,5 | 28,5 | 26,25 |
| e | 0,5 | 1,0 | 1,0 | 1,2 | 3 | 5 | 5 | ||
| f | 6 | 10 | 10 | 11 | 11 | 15 | 15 | ||
| n | 4 | 4 | 4 | 4 | 4,33 | 4 | 4 | 3 | 3 |
| l | 330 | 330 | 330 | 330 | 530 | 530 | 530 | 580 | 630 |
| d | 14 | 14 | 18 | 18 | 22 | 24 | 24 | 26 | 26 |
| u | 20 | 20 | 24 | 24 | 32 | 35 | |||
| v | 75 | 90 | 90 | 90 | 127 | 120 | 120 | 165 | 165 |
| w | 75 | 75 | 75 | 75 | 128,6 | 130 | 130 | 100 | 100 |
| x | 37,5 | 37,5 | 37,5 | 37,5 | 73,7 | 80 | 80 | 75 | 100 |
| z | 29,95 | 35,75 | 41,4 | 44,6 | 48,25 | 59,5 | 59,5 | 62,5 | 64 |
| kg/m kg/pc |
2,78 0,78 |
4,37 1,36 |
6,00 1,84 |
6,89 2,13 |
9,53 4,75 |
12,60 6,27 |
12,60 6,42 |
15,61 8,72 |
21,04 12,76 |
| matching fishplate bolt 4) | AM 12 × 50 |
AM 12 × 55 |
AM 16 × 65 |
AM 16 × 65 |
BM 20 × 90 |
BM 22 × 115 × 33 |
CM 24 × 125 |
||
| applicable for rail 5) | S 10 | S 14 | S 18 | S 20 | S 30 | S 33 | S 41 S 49 |
S 41 S 49 |
|
1) For rail S41: 39.5 mm and 14.5 mm respectively.
2) For rail S41: 44.5 mm and 14.5 mm respectively.
What are the advantages of using a rail joint?
Rail joints are essential for connecting rail sections, offering critical benefits such as accommodating thermal expansion and contraction to prevent track buckling. They ensure structural integrity, maintain proper alignment, allow for easier maintenance or replacement of damaged sections, and enable the connection of different rail sizes via specialized joints.
Key advantages of using rail joints include:
- Thermal Expansion Management: They accommodate the expansion and contraction of rails due to temperature changes, which prevents buckling or damage to the track.
- Structural Support & Alignment: They securely connect rail ends, maintaining proper horizontal and vertical alignment, which is crucial for safety.
- Easy Maintenance & Replacement: They facilitate the quick replacement of individual, damaged rail sections without needing to replace the entire track, making repairs more cost-effective.
- Versatility in Connection: Specific types, such as compromise joints, allow for connecting rails of different sizes or profiles.
- Electrical Insulation: Insulated rail joints (IRJ) provide essential electrical isolation, which is critical for modern signaling and train detection systems.
- Simplified Installation: They are relatively easy to install compared to other methods, reducing labor time and costs.
Different types of rail joints, such as square joints (aligned on both sides) or staggered joints (offset), can be chosen based on whether the track is straight or curved, respectively, to further improve stability and distribute loads.
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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