Mara series E-smart locomotive (25 ton) is developed specially for long distance water engineering tunnel construction. Wingo locomotive can meet the challenges of long distance, single ventilation, high depth, high temperature, high stress, reverse gradient drainage, large deformation of surrounding rock and other harsh environment. It has the characteristics of 15mins full charge, automatic control, AI driving and remote control. Combined with modern construction technology, it is able to complete slag-out mission in 20km tunnel, which greatly improved the efficiency of construction. Application ：Long distance water project tunnel construction
15min ultra-fast charging
Long distance 30km
Speed 20km/h
Zero emission
| weight（T） | 18 |
| Power（kW） | 37KW×2 |
| Traction weight（T） | ＞106T（30‰gradient） |
| Maximum speed（km/h） | 25 |
| Continuous traction（kN） | 33.2 |
| Dimension（L*W* H mm） | 5770×1360×2070mm |
| Braking method | DC-AC variable frequency+ mechanical drive |
| Control method | Intelligent frequency control |
| Traction power | Fast charging module |
| Charging time (min) | ＜15 |
| Automatic drive | Yes |
| Tunnel networking | Yes |
| weight（T） | 20 |
| Power（kW） | 45KW×2 |
| Traction weight（T） | ＞125T（30‰gradient） |
| Maximum speed（km/h） | 25 |
| Continuous traction（kN） | 34.5 |
| Dimension（L*W* H mm） | 6500×1360×2070mm |
| Braking method | DC-AC variable frequency+ mechanical drive |
| Control method | Intelligent frequency control |
| Traction power | Fast charging module |
| Charging time (min) | ＜15 |
| Automatic drive | Yes |
| Tunnel networking | Yes |
| weight（T） | 25 |
| Power（kW） | 65KW×2 |
| Traction weight（T） | ＞147T（30‰gradient） |
| Maximum speed（km/h） | 25 |
| Continuous traction（kN） | 50.44 |
| Dimension（L*W* H mm） | 6860×1550（1450）×2250mm |
| Braking method | DC-AC variable frequency+ mechanical drive |
| Control method | Intelligent frequency control |
| Traction power | Fast charging module |
| Charging time (min) | ＜15 |
| Automatic drive | Yes |
| Tunnel networking | Yes |
| weight（T） | 35 |
| Power（kW） | 110KW×2 |
| Traction weight（T） | ＞206T（30‰gradient） |
| Maximum speed（km/h） | 25 |
| Continuous traction（kN） | 72 |
| Dimension（L*W* H mm） | 8109×1550×2400mm |
| Braking method | DC-AC variable frequency+ mechanical drive |
| Control method | Intelligent frequency control |
| Traction power | Fast charging module |
| Charging time (min) | ＜15 |
| Automatic drive | Yes |
| Tunnel networking | Yes |
