Capital Equipment News February 2015

Sandvik launches MID-RANGE MINING CRUSHERS

S andvik Mining has expanded its CH88 series of mining cone crush- ers launching two technologically advanced models that improve productivity and profitability in the mid-range segment. Sandvik CH880 for high capacity secondary crushing and Sandvik CH865 for high reduc- tion tertiary and pebble applications feature high crushing forces relative to mantle diame- ter and 500kW motor. The new crushers com- bine a range advanced automation features for a more secure and productive process. The intelligent system in the Sandvik CH 860 and Sandvik CH 865 enable real time perfor- mance optimisation, while smart, compact design solutions reduce dynamic load and minimise engineering and installation work. The crushers feature fewer moving parts than competing models. Non-welded, bolted liners on the top and bottom shell enable safer, eas- ier maintenance. Both new crushers also feature the company’s automatic setting regulation control system (ASRi) and hydroset, to ensure automatic op-

eration at peak performance around the clock. ASRi constantly monitors pressure, power draw and mainshaft position and automatical- ly adjusts the setting during full load. The hydroset main shaft support system pro- vides protection from overloads by permitting tramp iron and other uncrushables to pass through the crusher before automatically re- turning to the original setting. The system au- tomatically compensates for crushing cham- ber wear to provide consistent product size. Hydroset enables Sandvik to incorporate their unique PLC-controlled electric dump valve for tramp iron protection, which significantly re- duces pressure peaks and mechanical stress on the crusher, greatly improving reliability. For almost one year of rigorous testing in a Chinese iron ore mine has produced excellent results. Many of the mines today are looking for in- creased productivity without expanding their plants so with the introduction of the Sandvik CH865 and the Sandvik CH860, crusher re-

placement has been made easier. On the test site a similar size crusher was replaced using the same foundation, hence significantly in- creasing production of the final product and also increasing chamber liner life. The electric dump valve repeatedly proved its tramp iron protection value by reducing costly unplanned breakdowns. b “The intelligent system in the Sandvik CH 860 and Sandvik CH 865 enable real time performance optimisation, while smart, compact design solutions reduce dynamic load and minimise engineering and installation work.”

CAPITAL EQUIPMENT NEWS FEBRUARY 2015 14