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The National Locomotive Gangway is designed for Harmony series locomotives, including HXD1, HXD2, HXD2F, HXD3A, FXD1B, and SS4B. Featuring a folding bellow structure combined with treading and bridge plates without inner panels, it provides durable inter-car connection, wide passenger or crew passage, and reliable performance under heavy-duty locomotive operations.
| Item | Description |
|---|---|
| Vehicle Type | Harmony HXD1 locomotive |
| Structure | Folding bellow + treading plate + bridge plate, without inner panels |
| Parameter | Specification |
|---|---|
| Curve Passing Capacity | Entry curve R125 m; S curve R250–10m–R250 m |
| Car End Distance | 340 mm ± 30 mm |
| Passing Width | ≥ 550 mm |
| Passing Height | ≥ 1900 mm |
| Sound Insulation Value | > 26 dB; > 34 dB |
| Thermal Insulation Value | K ≤ 5 W/(m²·K); K ≤ 3.5 W/(m²·K) |
| Fire Resistance | TB/T 3138 and EN45545 |
| Waterproof Performance | In accordance with TB/T 3094 standard |
| Maximum Operating Speed | 120 km/h |
Heavy-duty Harmony series locomotives operating on national railways
Locomotive-hauled passenger and freight trains requiring safe inter-car passage
Rail systems with moderate to tight curve sections
Operations in harsh environments demanding durable gangway solutions
Durable and Stable Structure
Folding bellow with treading and bridge plates ensures reliable inter-car connection under heavy loads.
Wide and Safe Passage
Sufficient passing width and height for crew or passenger movement improves operational safety.
Enhanced Comfort
Sound insulation up to 34 dB and thermal insulation optimize working conditions inside the locomotive.
Compliance with Standards
Meets TB/T 3138, EN45545 fire protection standards and TB/T 3094 waterproof requirements.
Cost-Effective and Low-Maintenance
Simplified design without inner panels reduces weight, maintenance needs, and lifecycle costs.
