RailMac 20T Lithium Battery Locomotive
The RailMac 20T lithium battery locomotive, with a self-weight of 20 T, adopts lithium battery as power source. Equipped with a Motor Power of 65 KW*2, it also features an Hourly Traction of 39.23 kN and a Maximum Traction of 50.96 kN. Lithium batteries have the characteristics of high energy density, high conversion efficiency, no memory effect, no charge-discharge delay, low self-discharge rate, and wide operating temperature range. In particular, lithium iron phosphate batteries have the advantages of non-toxic, non-polluting, good safety performance, long life and wide sources of raw materials, and long life. Its application on locomotives effectively solves the lead-acid battery problems of requiring frequent maintenance, frequent charging and insufficient cruising range in long tunnels.
The company provides customers with comprehensive life cycle services, from design to power system supply, installation and commissioning, to after-sales service, training, and spare parts supply, as well as troubleshooting and overhaul technical support. This full range of services ensures that customer equipment maintains high reliability and long-term operating efficiency during use.
We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from troubleshooting to overhaul technical support.
Advantages of 20T Lithium Battery Locomotive
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Superior Battery Advantages: Utilizes lithium batteries with high conversion efficiency, no memory effect, and no charge-discharge delay. These characteristics ensure stable and reliable power output during operation, allowing the 20T locomotive to work continuously and efficiently in subway and tunnel construction.
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Enhanced Traction and Speed: With 65KW*2 motor power, hourly traction of 39.23kN, and max traction of 50.96kN, it has strong traction capabilities. The hourly speed of 15km/h and max speed of 28.5km/h enable it to transport materials and personnel quickly, improving construction progress.
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Safe and Environment-friendly: Lithium iron phosphate batteries are used, which are non-toxic, non – polluting, and have good safety performance. This not only protects the construction environment but also ensures the safety of operators, in line with the requirements of green construction.
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Customizable Parameters: According to project requirements, parameters such as size and performance can be customized. This flexibility makes the 20T locomotive adaptable to different tunnel construction conditions and customer needs.
Technical Specifications
| Train Model: |
20T Lithium Battery Locomotive |
| Self-Weight: | 20 tons |
| Track Gauge: | 762,900 mm |
| Hourly System Traction: | 39.23 kN |
| Max. Traction: | 50.96 kN |
| Hourly Speed: | 15 km/h |
| Rated Voltage: | 537.6 V |
| Application: | subway and tunnel shield construction |
Railway&Tunnel Construction
RailMac Railway & Tunnel Construction builds railway tunnels to overcome natural/urban limits. Tunnels shorten routes, boost train efficiency, and reduce surface traffic/residential interference (e.g., mountain/urban tunnels). They need detailed geological surveys and advanced tech like the shield method for safety/efficiency.
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Train Model |
Self-Weight |
Track Gauge |
Hourly System Traction |
Max. Traction |
Hourly Speed |
Rated Voltage |
| 45T Lead-acid Battery Locomotive | 45 tons | 762,900 mm | 89 kN | 115 kN | 8.9km/h | 540 V |
| 50T Lead-acid Battery Locomotive | 50 tons | 762,900 mm | 98 kN | 127 kN | 8.9km/h | 540 V |
| 55T Lead-acid Battery Locomotive | 55 tons | 762,900 mm | 120 kN | 142 kN | 8.9km/h | 540 V |
| 60T Lead-acid Battery Locomotive | 60 tons | 762,900 mm | 120 kN | 153 kN | 8.9km/h | 540 V |
| 65T Lead-acid Battery Locomotive | 65 tons | 762,900 mm | 130 kN | 165 kN | 10km/h | 540 V |
| 15T Lithium Battery Locomotive | 15 tons | 762,900 mm | 20.92 kN | 39 kN | 9.6 km/h | 320 V |
| 20T Lithium Battery Locomotive | 20 tons | 762,900 mm | 39.23 kN | 50.96 kN | 15 km/h | 537.6 V |
| 25T Lithium Battery Locomotive | 25 tons | 762,900 mm | 65 kN | 74 kN | 9 km/h | 537.6 V |
| 30T Lithium Battery Locomotive | 30 tons | 762,900 mm | 71 kN | 81 kN | 8.9 km/h | 537.6 V |
| 35T Lithium Battery Locomotive | 35 tons | 762,900 mm | 80 kN | 92 kN | 10 km/h | 537.6 V |
| ——END—— | ||||||
General Information of RailMac 20T Lithium Battery Locomotive |
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| Model Name | 20T Lithium Battery Locomotive | Self-Weight | 20 tons |
| Track Gauge | 762/900 mm | Wheelbase | 2500 mm |
| Min. Turning Curve | 25 m | Wheel Diameter | Φ840 mm |
| Motor Power | 65 kW*2 | Battery Capacity | 400 Ah |
| Rated Voltage | 537.6 V | Hourly Traction | 39.23 kN |
| Max. Traction | 50.96 kN | Hourly Speed | 15 km/h |
| Max. Speed | 28.5 km/h | Length | 7400 mm |
| Width | 1750 mm | Height | 1900 mm |
| ——END—— | |||
Note: The above parameters can be customized according to requirements.
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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.

Engine Sale Manual

Installation Drawing

Installation Manual

Operation Manual

Parts Catalogue

