RTH50 65t Metre-Gauge Grain Hopper Car for 1000mm metre-gauge Railways
2026-04-30
RTH50 65t Metre-Gauge Grain Hopper Car for 1000mm metre-gauge Railways
Our Metre-Gauge Grain Hopper Car is engineered to meet and exceed these requirements. Designed and manufactured by China National Machinery Engineering Corporation, this 4-axle hopper car is optimized for transporting cereal crops such as soybeans, complying with both Chinese national standards and key AAR specifications, with full adaptation to Argentina’s NEFA 606 rolling stock gauge and local operating environments.
This grain hopper car is tailored for Argentina’s 1000mm metre-gauge lines, with structural and performance parameters calibrated for efficient and safe grain transportation:
| Technical Index | Specification |
|---|---|
| Gauge | 1000mm |
| Axle Number | 4 |
| Maximum Axle Load | 22t |
| Payload Capacity | 65t |
| Tare Weight | ≤23t |
| Design Volume | 88m³ |
| Maximum Operating Speed | 90km/h |
| Minimum Curve Radius Negotiated | 90m |
| Coupler Center Height Above Rail | 804mm |
| Overall Vehicle Length | 17038mm |
| Vehicle Fixed Distance | 13000mm |
| Maximum Vehicle Width | 3060mm |
| Maximum Empty Vehicle Height | 3628mm |
| Number of Hoppers | 4 |
| Bogie Wheel Diameter | 840mm |
| Bogie Tare Weight | ≤4.1t |
The carbody is constructed with Q450NQR1 atmospheric corrosion-resistant steel (or Q345NQR2/09CuPCrNi-A) for main profiles and plates, consisting of an underframe, side walls, end walls, roof, 4 bottom hoppers, flip-type loading hatches with buffering and sealing, and slide-plate bottom door unloading devices. All non-friction metal joint surfaces are evenly coated with anti-rust paint, ensuring durability in Argentina’s -10℃~+50℃ operating temperature range.
Equipped with a Chinese-manufactured 150-type air brake system (compatible with Knorr and Westing house systems), it features stainless steel pipelines (GB/T14976) with flange joints, O-Bee ductile iron bushings for brake levers, and an NSW hand brake. The system meets AAR S-401 brake rate requirements, with a dual-pressure control mode, emergency brake wave speed ≥250m/s, and two-stage automatic empty/loaded weight adjustment, ensuring stable and responsive braking.
- Bogie: A cast steel three-piece controlled bogie (AAR B+ grade steel for side frame and bolster) with AAR Class E (6″*11″) bearings, AAR M-101 E-grade axles, and AAR M-107/208 wheels (840mm diameter). It has 14 sets of inner/outer suspension springs, constant-contact elastic side bearings, and high-friction composite brake shoes for reliable operation at 90km/h.
- Coupler Buffer: Adopts Chinese 13B type E-grade steel couplers (compatible with AAR S-106 10A profile) and MT-2 spring-friction buffers (capacity 54kJ, stroke 83mm), ensuring safe coupling and shock absorption during transportation.
