NEW EQUIPMENT NEWS
Cost-cutting machines
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of valuable fine material while rejecting
unwanted over-size products.
“To further customise the sizing of
the material processed by the Metso
Lokotrack ST2.8 machine, you can
have smaller spacing bofar bars at the
first step on the top deck and larger
spacing bofar bars at the bottom step
of the same deck, which will allow you
to spread the material more evenly at
the bottom deck, improving screening
efficiency. The bottom deck is the most
important screen deck because it is the
one that determines whether you are
throwing diamonds into your product or
are discarding them as waste product.
With various screen media options, the
Metso ST2.8 and ST3.5 ensure 100%
efficiency at the bottom deck in various
applications,” Karolus says.
Whilst most mobile screens tend
to blind when dealing with sticky wet
material such as clay and wet sand, the
Metso Lokotrack screens get around
this problem through the application of
Pilot Crushtec’s patented piano wires
on the Metso ST3.5 and the Metso
ST2.8 Lokotracks’ eccentric throw of
15mm. Metso Lokotrack is suitable
for screening alluvial diamond-bearing
material, top soil, demolition waste,
and river gravel. Galvanised walkways,
strong steps, and great access to all
service points on the Metso ST2.8
increase safety, equipment value and
longevity, and reduce service time,
says Karolus.
Despite its size, Metso Lokotrack
ST2.8 can produce 600 tonnes per hour
maximum feed.
Scheduled equipment inspection
visits from a Metso-certified inspector
are also part of the EPS programme
and ensures that any potential issues
are caught early. Certified technicians
and 24-hour parts support, help
optimise equipment’s life cycle and
productivity to enable the lowest
sustainable cost per ton production,
Karolus concludes.
The screening industry is all about
performing faster and better. In this fast-
paced world, being able to effectively
cut costs becomes the cornerstone
of ensuring a business remains
profitable, efficient, and relevant, says
Sandro Scherf, CEO of Pilot Crushtec
International.
“The Metso Lokotrack ST2.8 and its
complementary counterpart, the Metso
Lokotrack ST3.5, are necessary tools
when screening an array of materials;
whether it’s diamonds, sand, metals,
or manganese The ST2.8 and ST3.5 will
reduce material handling by up to 50%,”
says Scherf.
The Lokotrack ST2.8, unlike other
mobile scalping screens, has a two-
way split option. This feature combines
material flow from the first and
second deck to the main conveyor and
maximises the capacity and efficiency
of the screening process, says Bradley
Karolus, sales engineer at Pilot
Crushtec International.
“When the ST2.8 is utilised in
the two-way split mode, the non-
working conveyor can be removed.
This customisable ability and two-way
split means oversize (rocks in diamond
mining) goes out onto one conveyor
belt, whilst product passes through
to the product conveyor. This system
eradicates double handling and reduces
the amount of time the loader spends
collecting material from different sides
of the scalper, leading to a reduction in
operating costs. Furthermore, the haul
trucks are only loaded with product
when they leave the loading site.
The waste rock screened is left in a
single pile on site to be rehabilitated
immediately,” Karolus explains.
Diamond screening applications are
more efficient when the ST2.8 is fitted
with Metso’s patented bofar bars, which
allow the maximisation of the retention
Metso Lokotrack ST2.8 is 25% lighter than similar machines in the market, making it
more economic when it comes to transportation costs.
MARCH 2019
19