Thyssenkrupp Industrial Solutions will supply the first double mouth jaw-gyratory crusher to be sold in the world to the CMOC-Northparkes block cave underground mine in New South Wales.
Northparkes is also the first mine to use Thyssenkrupp’s standard indirect fed jaw-gyratory crusher BK 63-75, which was intended for the mine’s newly developed block caving concept.
“The first BK 63-75 crusher of its kind was commissioned underground at Northparkes in 2003, followed by a second installation in 2009,” engineering superintendent of Northparkes E26L1N block cave mine project, Ian Smith said.
“Northparkes has worked closely with Thyssenkrupp over the years to develop and make improvements to these crushers and has developed great confidence in the reliability and robustness of the BK 63-75 crusher. We look forward to the new DBK 63-75 being commissioned.”
The BK 63-75 solution for block caving mines is the basis of the double mouth jaw-gyratory crusher’s development, coupled with consultation with Northparkes to meet the mine’s “very specific” operating objectives.
Thyssenkrupp has developed a new, patented spider for the double mouth crusher to give the opportunity to feed the crusher from both sides, removing the need for a primary crusher feed hopper and primary apron feeder.
“What makes this order significant is that this will be the first ‘double-mouth’ jaw-gyratory crusher supplied in the world,” Thyssenkrupp Industrial Solutions Australia head of sales Ben Suda said.
The double mouth crusher dramatically reduces excavation requirements in an underground operation like Northparkes, leading to a sizeable reduction in installation cost, according to the company.
The CMOC-Northparkes mine is an 80:20 joint venture between China Molybdenum (CMOC) and the Sumitomo Groups.
Northparkes is known as a site for firsts, with it also the first mine in Australia to use the “highly efficient” block cave mining method, now used in several mines throughout the country. The first full-scale production was from E26 Lift 1 block cave in 1997.
It processes around 6.4 million tonnes of ore a year of high-grade copper-gold concentrate for smelting by overseas clients.
Thyssenkrupp has supplied over 250 gyratory crushers globally.