RailMac GN70 Oil Tank Car
GN70 oil tank car is designed for the transportation of mineral oil with high viscosity, such as crude oil, heavy diesel oil, and lubricating oil.
The first prototype of this rail tank car model was completed in 2005. After that, it passed a series of tests such as body static strength test, dynamic performance test, impact test, loading and unloading test, and began mass production. Today, this type of oil tank car still transports all kinds of viscous oil on many railway lines in China. In the safe operation of the past ten years, the reliability and stability of this model have been fully demonstrated. This is a tank car with high cost performance, long service life, and excellent safety.
The bogie gauge of the car is 1435mm, and the maximum loading capacity is 70 metric tons. The tank car is filled via the top discharge and emptied via the bottom discharge.
As part of SinoMac, RailMac provides full life‑cycle services for the K13BK Limestone Hopper Wagon, including design, system supply, installation, commissioning, after‑sales training, spare parts supply, troubleshooting and overhaul support, ensuring stable and efficient performance throughout its service life.
Advantages of GN70 Oil Tank Car
The 70 t loading capacity paired with a 73.7 m³ effective volume maximizes cargo throughput, while the 23.8 t lightweight tare weight minimizes energy consumption per tonne of cargo, reducing overall transportation costs.
A 0.15 MPa tank pressure rating and robust braking system (braking ratio 10.73) ensure secure containment and stable stopping performance, meeting stringent safety standards for hazardous liquid transport.
Engineered to operate in temperatures ranging from -40°C to +50°C, it maintains consistent performance in harsh climates, making it suitable for deployment in polar, desert, and other extreme environmental regions.
A 25-year service life and 5-year factory overhaul cycle minimize downtime and maintenance costs, while the 120 km/h maximum speed and 145 m minimum curve radius enable flexible, high-efficiency operation across diverse railway networks.
Technical Specifications
Model | Loading Capacity | Gauge | Axle Load | Max Speed (Full Load) | Loading Volume |
| GN70 Oil Tank Car | 70 t | 1435 mm | 23 t/axle | 120 km/h | 78.1 m³ |
| GQ70 Oil Tank Car | 70 t | 1435 mm | 23 t/axle | 120 km/h | 80.3 m³ |
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Main Parameters | |||
| Loading capacity | 70 t | Tare weight | 23.8 t |
| Axle load | 23 t/axle | Overall length | 12216 mm |
| Overall width | 3320 mm | Overall height | 4466 mm |
| Fixed wheelbase | 8050 mm | Gauge | 1435 mm |
| Load per linear meter | 7.68 t/m | Tank volume | 78.1 m³ |
| Effective volume | 73.7 m³ | Tank pressure | 0.15 MPa |
| Environment Temperature | -40~+50 °C | Braking ratio of the whole vehicle | 10.73 |
| Braking rate (empty) | 24.20% | Braking rate (full) | 16.59% |
| Max speed (full load) | 120 km/h | Minimum radius of curvature negotiable | 145 m |
| Maintenance cycle | factory overhaul per 5 years | Service life | 25 years |
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Q1: Do you have the design capability to provide customized railway vehicles?
A: Yes, we have a professional technical team and are familiar with international railway standards such as UIC, AAR, EN, etc. We are able to provide railway equipment according to customer requirements.
Q2: The Chinese railway gauge is 1435 mm, but the railway gauge in our country is 1000 mm. Will this be a problem for you?
A: Of course not, we are able to design railway vehicles with different gauges, such as 1435 mm, 1000 mm, 1067 mm, 1520 mm or other required railway gauges.
Q3: Compared with your competitors, why should I choose you?
A: Tieke Railway was transformed from China Railway Freight Car Factory in 2016. The company has more than 10 years of experience in railway vehicle manufacturing; now, as Tieke Railway is a private company with modern market management strategies, our services are flexible, considerate, and the cost is more controllable.
Q4: What should I provide to get your quotation?
A: You can send an inquiry with detailed drawings, product photos, detailed technical parameters or demand description. Complete demand input is very important for us to provide you with an accurate quotation.
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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