SCREENING AND WASHING
The new H-Class from
Haver & Boecker
washed product to be ready for market straight
from the belts.”
Haver tackles fine screening
Haver & Boecker now offers the H-Class vibrating
screen for fine particle screening. The H-Class’s
high-frequency vibrations efficiently screen hot,
dry materials for consistent product output. The
heavy-duty, stationary machine is safe for use in
unreinforced structures since the movement is
confined to the media, which moves with a fast,
small stroke to screen materials through
openings ranging from a half inch to 100 mesh.
The machine offers two variable speeds: the
running cycle operates at 42 to 48 Hz to screen
particles and can be modified to an operation’s
specific needs, while the short burst cycle
increases the vibratory motion to 60 Hz to clean
the screen, preventing blinding and increasing
productivity.
“When customers need to screen fine, dry
materials, especially at high temperatures, they
turn to the H-Class,” said Karen Thompson, Haver
& Boecker Canada President. “It’s proven to
withstand tough operating conditions to provide
a steady material output.”
The H-Class’s modular design uses pre-
engineered components, which allows the
machine to be easily configured based on an
operation’s machine size requirements. It is
described as especially effective for screening
materials including phosphate and potash,
making it key technology for the fertiliser
industry.
“Many operations will be eligible to receive
Haver & Boecker’s three-year Uptime Service
Package free with the purchase of an H-Class.
Uptime includes the manufacturer’s full-service
approach to equipment optimisation, from parts
18 International Mining | OCTOBER 2017
inspection and equipment assessment to screen
media evaluation. As part of the program, Haver
& Boecker uses its signature Pulse vibration
analysis software to monitor the health of the
vibrating screen.”
Powerscreen performs in SA coal
Faster, more aggressive screening technology is
allowing mine processing contractor, Two
Pedestrians Mining, to push production to new
levels and radically shorten processing times on
behalf of its clients in the mining industry.
According to Neel Rademeyer, owner of Two
Pedestrians Mining, the screening process is at
the heart of production to provide the optimal
production and sizing for final processing or
stockpiling of product. The accuracy and speed
with which this is achieved results in improved
profitability for its clients.
Most recently the company has employed a
newly acquired Powerscreen Warrior 1400X
mobile screen to do duty in volume applications,
where its heavy-duty processing power is able to
make short work of run-of-mine materials even in
rough terrain where its mobility simplifies the
load-screen-dump cycle.
“The machine has been a revelation in terms
of its versatility and work rate. This is important
as it means it can be deployed to a wide range of
mining types wherever there is a requirement for
mobile operations to work through large volumes
of materials, whether it be coal, ore or
aggregates,” says Rademeyer.
“At present the Warrior 1400X is operating in
the coal fields in Delmas, where its
interchangeable decks can be set in accordance
with the type and size of coal required. The
processing of run-of-mine to 0 x 50 mm product
requires that the screen can handle 0 x 600 mm
feed. The unique design of the ‘punch plates’ top
decks has been a revelation to say the least. We
have processed approximately 600,000 t on one
set of punch plates and see no need to replace
them yet. Amazingly, it can be offloaded and be
operational on a site within 15 minutes as was
proven at Wescoal recently.”
Two Pedestrians Mining Operations Manager,
Arno Swart, adds that due to the screen’s high
ground clearance, it is able to tram quickly to
keep up with production. The high running
position also lends itself to a cleaner operation
with no need for ramps to access underneath the
machines. Its conveyor height also allows the
company to stockpile materials up to 4 m high,
significantly enhancing its ability over previous
models.
“The additional height has improved our
productivity substantially as the front-end
loaders are able to fill the buckets to maximum
capacity. Therefore, you achieve a reduction in
diesel consumption and an improvement in
safety. You now have a loader working slower,
safer and more efficiently from bigger
stockpiles,” says Swart.
“In terms of performance, the Warrior 1400X is
a beast that packs a whole lot of punch into a
machine with a comparatively small footprint.
Because of its aggressive screening nature, it
leaves an impression at the mines where it has
operated and is therefore in high demand
whenever our customers want to boost
production,” he says.
“Being of a modern design it is also quick and
easy to maintain with easy access to service
points. In the 2,700 hours that it has been
running at our sites it has not had any serious
problems,” says Swart.
Rademeyer adds that Two Pedestrians Mining
has a long and beneficial relationship with ELB
Equipment, the sole distributor of Powerscreen
equipment in southern Africa. Since starting the
operation more than 20 years ago, the contractor
has standardised its entire fleet on ELB
Equipment’s “best of breed” machines from top
OEM brands.
“In terms of the durability of the numerous
Powerscreen machines in our fleet, they are
unquestionably reliable and the diesel
consumption is the most economical in the
market. This makes it easier for us to quote on a
cost-per-hour basis and brings down operating
costs considerably. With consumption of between
10-12 litres per hour, at an average production of
300-350 t per hour, the figures speak for
themselves,” says Rademeyer.
“In terms of reliability, our Powerscreen
machines have proven themselves over the years
with the oldest Powerscreen Chieftain 1400 in our
fleet having already clocked over 53,000 hours
and still running. Likewise, ELB Equipment has