In November 2019, China’s latest large mining truck model, the 240 ton payload CR240E with electric drive from CRRC Datong in Shanxi Province, started industrial tests in the Qidashan Iron Deposit of Ansteel Group Mining Co Ltd. The initial testing programe includes the half-load test, routine test, heavy-duty test and so on, which is expected to last for one year. This version of the truck rolled off the line at CRRC Datong in June 2019, though an earlier version was produced by CRRC in Beijing back in 2017.
The model was independently developed by CRRC Datong Electric Locomotive Co Ltd. The core components and key technologies have been domestically produced. The company says it has adopted advanced dual fuel engine technology and a reliable electric drive system. The truck has a maximum speed is 57 kilometres per hour. The specifications from CRRC for the truck show it having the option of either an MTU 16V4000C13 or Cummins QSK60 engine, and is listed as being able to run on diesel or LNG. The power of the traction motor is 764 kW. For the first time, anti-drag braking technology is introduced to reduce fuel consumption. Its modular design reduces maintenance time, improves operating efficiency, and saves fuel costs says CRRC. The electric drive is CRRC’s own technology, adapted from its high speed rail business.
The truck adopts Macpherson-type front suspension and four-link rear suspension, and uses high-strength alloy steel plate as the frame manufacturing material, which it says enhances the reliability of the steering system and components, and cab rollover/falling object safety. The design was verified by the US Clark Testing Structural Testing Laboratory.
The total weight of semi-load test transportation in the Anshan Group mine half load test is 110 t, and the total weight of the heavy-duty is 220 t. The mine in question has complicated terrain and a lot of relief, which will be a challenge to proving the comprehensive performance, technical maturity, and reliability of the truck. CRRC says there are radar and laser technologies that can monitor the vehicle (eg when reversing) as well as automatic weighing, fast fuel filling, cold starting and centralised charging. CRRC believes that the truck has manoeuverability and intelligence that will allow the machine to achieve a leading position in the Chinese mining truck market.
