IM 2020 April 20 | Page 78

HIGH PROFILE IM’s Paul Moore meeting with XEMC Marketing and Sales Director, Jimmy Ji in Xiangtan is not only related to the market, the trucks are so robust that they last a long time – at least 12-15 years and up to 80,000 hours. XEMC still has a truck running from 30 years ago and even had a special ceremony to celebrate the milestone. Looking at the larger trucks specifically, two 300 t SF35100 trucks were built for Shenhua’s huge Zhungeer Energy operations which include the Hei Dai Gou and newer Haerwusu coal pits. XEMC still owns the trucks with Zhungeer renting them based on tonnes hauled per year. The model was first developed in 2011 and has performed well at this site where temperatures can fall to -400C in winter. The truck has a fully welded structure with no large castings which required a lot of in-house engineering. Of course the Chinese market for large haul trucks is relatively limited to Zhungeer and a handful of other sites such as a few other large coal mines owned by China Coal (Pingshuo), Yiminhe and Datong and then metallic operations like Jiangxi Copper & the new Julong Copper in Tibet; as well as a number of major iron ore mines especially in Bayan'obo Mining District. Apart from XEMC and NHL, there have been few other deliveries, with exceptions such as MCC 200 t trucks delivered to Jiangxi Copper plus some XCMG, SANY and China Space Sanjiang Group units, mainly in the Zhungeer complex. The limited ultraclass market in China is partly due to the fact that the market is very cost/price driven, and has been suffering from sustained low coal prices as well as government regulatory pressures relating to emissions and environment. Looking at the Zhungeer mines alone, it has 29 XEMC 200 t trucks that are owned, and two 300 t XEMC trucks that are rented. This is common for large trucks at this mine, it has a similar arrangement with MCC for its 363 t truck (HMTK 600B) it has there as well as with XCMG’s 363 t model (XDE400), China Space Sanjiang trucks and 74 International Mining | APRIL 2020 NHL trucks (rental on MT5500 and NTE larger electric drive models like the NTE360, which are both 330 t class, plus owned mechanical drive models like the TR100), and Sany SET230 (230 t), though in general Sany up until now has focussed on smaller class machines. Zhungeer also has Komatsu 930E trucks running. The original drive for development of 300 t plus mining trucks in China was a government push to have more large trucks made domestically, where Chinese OEMs received a funding boost and certificate for their development. Zhungeer has always been very open to trials of “non-Komatsu” domestic OEM large trucks. Even in 2017, the operation was looking at using another 13 300 t trucks though this has not yet materialised. At Pingshuo, XEMC has sold trucks to a contractor (220 t class) for overburden haulage. Yiminhe has XEMC 108 t trucks as well as eight 220 t SF33901 trucks, and was actually the first operation to use them. With the onset of a trade war with the USA this seems to have made Zhungeer and other Chinese mines nervous of buying US-made mining trucks due to component supply uncertainty, so this is one positive out there for the Chinese OEMs. Future for XEMC Jimmy Ji told IM that of course technology is a focus going forward. Like NHL it is working on its own autonomous truck that may start trials in 2020, though as stated elsewhere in this issue, many mines are opting to partner with technology companies like Vipioneers and Tage Idriver to automate existing trucks, including XEMC models. That aside, XEMC has also developed a hybrid battery electric drive-diesel truck that saves about 15% in diesel costs. This is trialling with Zhungeer and is 108 t class. Half of the gridbox has been The XEMC 300 t truck, the SF35100 removed and replaced with batteries, which store excess energy that is used during fully laden haulage. When the truck is idled, the engine turns off with the battery used for aircon etc. The hybrid system was developed in house by XEMC’s own research centre. Overseas, while it is tough in competition terms, XEMC is still participating in tenders in Chile, for example for 220 t/300 t models. Africa of course remains a big focus for Chinese OEMs as many mines are Chinese owned in countries like the DRC, Zambia and South Africa. However, many of these mines suffer from low cashflow and Chinese companies cannot match finance packages offered by the likes of Komatsu, Hitachi and Cat. That said, as investment becomes harder to find in the West, the power of Chinese banks is being seen so this situation is changing. SANY, for example, has its SRT95 running at copper mines in Zambia. IM XEMC is a market leader in electric drive 100 t class trucks in China with its SF33901, of which it has delivered well over 800 units