NEW EQUIPMENT NEWS
www.equipmentandhire.co.za
Even cleaner coal
‘Low cut’ spiral technology has been
taken to the next level by Multotec with
its new SX10 low density spiral. The
reduced cut point delivers considerable
advantages over the cut points typically
achieved in the industry today.
According to Multotec technology
manager Faan Bornman, the Multotec
SX10 low density spiral’s reduced cut
point of 1.55g/cm³ delivers considerable
advantages over the cut points of
between 1.6 and 1.8g/cm³ typically
achieved in the industry today.
The result, he says, is a cleaner coal
with less waste being achieved in a single
stage, which saves on capital costs as
no further spiral stages are required for
cleaning down the line. The approach
taken with the Multotec SX10 spiral is to
remove the gangue (or mineral containing
particles) from the trough in two off-takes.
The first off-take removes ash. This
opens up the available separation surface
of the spiral, allowing the remaining
material to separate more easily,
separating clean coal from less-clean coal.
“The low-density spiral is essentially
a primary and secondary stage on one
centre column,” Bornman says. “Rejects
are discarded into the centre column and
the remaining product is re-pulped before
being sent to a secondary off-take.”
Facilitating the two off-takes is a
longer spiral on the Multotec SX10. This
increases the residence time and gives
the particles sufficient time to separate.
Depending on the setting of the
product box splitters, this new spiral has
The compatibility and shared synergies
between the two businesses make for a
textbook collaboration.”
Stampede is a proudly South African
company that boasts a solid 25-year
reputation as a local manufacturer and
supplier of compaction equipment. The
company’s range of walk-behind and ride-
on rollers, rammers / tampers and plate
compactors are engineered and built at
its well-equipped 2 000m² manufacturing
operation in Isando, Johannesburg.
“What was important for us is that
Stampede is all about local. In addition
to the fact that Stampede boasts a
proven track record for building tough,
reliable and efficient equipment for
Africa, the business contributes to the
local economy through job creation and
skills development.” Senyard also points
out that as Stampede specialises in the
smaller compaction product range there
is zero conflict with Kemach Equipment’s
other product ranges.
The scope of the agreement sees
Kemach Equipment supplying Stampede’s
complete walk-behind roller range; the
PR39 trench compactor; the PR 62 and
75 general purpose rollers; as well as the
PR90 heavy duty roller. “These robust
machines, available in drum widths ranging
from 380mm to 890mm with operating
weights from 495kg to 1 080kg, are
versatile workhorses renowned for their
simple, easy operation and efficiency; we
are eager to unleash these machines into
the market,” remarks Senyard.
“Stampede is rightfully proud to
partner with a company like Kemach
Equipment that is a market leader, an
organisation with a pedigree that is
renowned for excellence in sales and
after-market support,” states Marco
Capazario, managing director of Stampede
Compaction Equipment. “The timing
of this partnership could not have been
better for us as we want to concentrate
all our efforts on our core competencies
of manufacturing production and product
development. As a customer-centric
company, we pride ourselves on our
technical expertise, which enables us to
continuously improve our machines based
on customer feedback as well as through
significant investment in R&D. We are
passionate about developing cutting-edge
technology to drive up efficiencies and
extend the life cycle of our machines for
lowest possible total cost of operation
and subsequently ownership for our
customers.”
The longer Multotec SX10 spiral allows for
two off-takes and increases residence time.
the ability to produce a thermal coal and
a coking coal on one spiral. Bornman says
this was proven through test work done
in the US. The two offtakes enable the
removal of most of the gangue leaving a
middlings and cleaner coal products to be
collected at the dart splitters.
Experimental work was carried out
using coal from two South African
collieries as well as doing site test
work in the US. Promising results were
obtained leading to the first order for
Multotec SX10 spirals from a North
American-based mine.
The two off-takes on the Multotec SX10 leave cleaner coal products to be collected at
the dart splitters.
SEPTEMBER 2019
11