... thick steel plates 4.One year warranty Name: 10T battery locomotive for underground mining transportation and tunneling Model: CAY10 ... , different spread of track, different weight of trolley locomotive, the weight have 7t, 8t, 10t, 12t, 14t, 18t, 20t, 25t, ... speed with advanced control technology, which improved the locomotive adherence ratio significantly. Electric braking used for normal speed ...