Chinese firms are now gearing up to tackle the quarrying market - Mike Woof writes. One of the key developments of note for the bauma China exhibition in late 2014 was the number of Chinese manufacturers now looking to compete in the quarrying sector. Also of note was how Western manufacturers are also taking the emergent markets seriously, developing machines to counter this increased competition from China. In many cases Western manufacturers have partnered with Chinese firms, bought out Chinese companies
Advances in asphalt compaction are offering improved performance right across the spectrum of size and capacity – Mike Woof writes. New asphalt compaction machines are offering major gains in performance as firms develop new systems. Large and small asphalt compactors now offer higher output than earlier generation machines, while delivering better quality and lower fuel consumption as well as gains in reliability, durability, safety, ergonomics and operator comfort.
XCMG’s largest tunnel machine, the XTR7/360, has gone straight from the production line to a reconstruction project in a county in Hunan Province.
The project is for a tunnel with a full length of 1.2km, an excavation section width of 4.6m, and a height of 6.6m. Above the tunnel are residential buildings and pavement, buried for a depth of about 4m. These buildings have strict requirements on the disturbance on surrounding rock and noise control. The tunnel stratum is all rock roadways. The rocks are limes
Topcon Positioning is introducing the C-63 GPS/GNSS indicator system designed specifically for use with compactors. The package can help deliver precise compaction and features the firm’s novel GNSS technology and graphical display, providing real-time positioning and plan data and ensuring optimum compaction is achieved where required. Compaction is important for soil or asphalt applications but monitoring surfaces is difficult with existing technologies. Over- or under-compaction of asphalt in particular
