16 / 44
CAPITAL EQUIPMENT NEWS
FEBRUARY 2015
14
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.”