New concept in mobile crushing from Sandvik
Sandvik Ltd have supplied a new concept in mobile crushing that is allowing more production from a primary and secondary crusher combination working at the face of a blue-chip quarry company in Ireland. An H6800 cone crusher, which is traditionally installed in large fixed plants, has been designed into a complete track-mounted mobile crushing system to create the new remote-controlled CM6800 machine.
The Sandvik CM6800 features: a feed hopper and feeder to regulate material flow from the primary crusher; a pre-crusher screen to select or bypass fine material; the H6800 CX crusher with ASRi control; and a closed-circuit screen and conveyor system to produce two products on the ground (if required) as well as returning oversize to the crusher. Powered by a fuel-efficient Cat C18 genset, the unit comprises three quick-to-assemble modules for ease of transportation to site.
Having seen the machine in operation in Scandinavia, and already being familiar with the reliability of the Hydrocone crusher, Kilsaran Concrete executives concluded that the CM6800 would be the ideal machine to increase the capacity of their award-winning plant at Gallstown Quarry, where crushed stone is needed to supply the combined requirements of a block-making plant, ready-mixed concrete plant and an asphalt plant, all of which have seen a significant increase in demand as a result of infrastructure activity in Ireland.
Maintaining their reputation as innovators in quarry production, Kilsaran Concrete have become the first company outside Scandinavia to order the new CM6800. Working in combination with a track-mounted, 1,200mm wide primary jaw crusher running with a closed-side setting of 150mm, the new, flexible in-pit crushing plant is delivering an average output of 480 tonnes/h of nominal –80mm material for transfer to the quarry’s final processing and storage plant.
HARD ROCK
Ennstone Thistle have recently invested in a Sandvik Crawlmaster 1208 primary jaw crusher and a Crawlmaster H4800i tertiary crusher (pictured above) to process some of the hardest material to be found in the UK. Forming part of a mobile crushing train at Furnace Quarry, near Fort William in Scotland, the machines’ reliability, ability to increase existing production levels, ease of movement (in one piece) by road and rapid set up on site were key factors in the investment. The CM1208 has a 1,200mm wide feed opening that allows production of sufficient primary crushed material to match the secondary crusher, while the Hydrocone crushing chamber design of the CM4800i optimizes the yield of 14mm and 10mm products.
New products from new members of the Sandvik family
Hillhead 2007 provided one of the first opportunities for the recently extended Sandvik family to gather together following the Swedish-based company’s acquisition of Extec Screens and Crushers Ltd and Fintec Crushing and Screening Ltd at the end of May. Fintec and Extec both had a wide range of crushing and screening plant and equipment on display and demonstration, including several brand new products.
