international
construction
january-february 2015
48
Critical equipment
is very much in demand for the customers who desire the
straightforward as well as powerful drill rigs.”
One of the first rigs to be made went
out on trial with Eire Contractors of
Durban, South Africa. John Moffat,
founder and CEO of Eire Contractors
was impressed. “The rig’s power, speed
and fuel efficiency meet our objectives
for achieving maximum productivity
with minimum input. In addition to
substantial savings on diesel, the rig
drilled the holeswith ease. A comfortable
operator is a safe andproductive operator
so the fact that the rig offers the same
operator comfort levels as the previous
model is very important to us,” he said.
Sandvik also used the Bauma China
exhibition to unveil new rigs to a global
audience in the shape of the new Tiger
surface drills. Designed for applications
such as road cutting, pipelinedrilling and
foundationdrilling, aswell as production
drilling in medium-sized quarries, the
machines are said tooffer power, strength
and performance.
Features include a low centre of gravity
and heavy-duty tracks, while the fixed
boom has a rod handling system, and
Sandvik’s proven rock drills.
In the cab there is a tailor-made user
interface, which allows all drilling functions to be handledwith
a single joystick control, with all drilling parameters being easy
to adjust. The series consists of two models, the Tiger DG700
for 64–115mmdiameter holes andTigerDG800 for hole sizes
of 64 – 127mm.
Demolition robot maker Brokk and drilling equipment
manufacturer TEI Rock Drills have developed the TE160
hydraulic drifter attachment for Brokk 100 or Brokk 160
remote controlledmachines.
“Heavy jacklegdrills aredifficult tomove and canquicklywear
out the operator. With the Brokk machine and this drill head,
they won’t tire so easily,” said Peter Bigwood, vice president of
sales and marketing at Brokk. “Instead, they can run powerful
drilling equipment in tunnels, mines and demolition sites for
longer and from safe distances.”
The Brokk 100 is only 45 inches (1.14m) tall and 31 inches
(0.79 m) wide with the stabilisers folder in, so can be used in
confined spaces and is narrow enough to fit through doorways
or onto elevators.
At just under 26 inches (0.66 m) long, the TE160 is the
smallest drill attachment fromTEI, but still delivers 35 to 60
>
DRILLING
Powerful demonstration
SandvikDP1500i drills twice the distancewith half the fuel
A
series of benchmark drilling
demonstrations of the Sandvik
DP1500i rig have been carried out
at the Fedorovskoye quarry inRussia’s
Rostov region. Thesewere organised
by Sandvik ConstructionRussia and
distributor Quarry Service, in order to
measure the drill rig’s performance on
highly abrasive sandstone. The quarry is
owned and operated by a local company,
Donskoy Kamen, while a subcontractor,
Yugvzrivprom, performs blastingwork.
AlthoughDonskoy Kamen is familiar with
the performance of theDP1500i through
a demonstration on granite, the company
has been experiencing problemswith its
existing fleet of drill rigs on the sandstone
found at the quarry. Its abrasiveness places
greater demands on the rock tools, and
usesmore rig power resulting in greater
fuel consumption.
As difficult as thematerial is to extract, it
is sought after as an aggregate for its frost
resistance properties, which is seeing it
gain in popularity in road construction.
Testswere carried out with 102mm,
127mm and 140mm drill bits fitted to
theDP1500i, and in each case the rig performed exceptionally. At the smallest diameter it
drilled twice the depth in a given time thanDonskoy Kamen’s existing rigs, with less fuel
consumption and longer bit life.
Indeed, the combination of theDP1500i’s powerful 33 kW rock drill and high quality
Sandvik drill bitsmeant the consumables lasted up to 2.5 times longer than the 350m (or
20-30 holes) the quarrywas used to seeing.
The demonstration of theDP1500i at the Fedorovskoye quarrywas supervised by senior
management from bothDonskoy Kamen and Yugvzrivprom. Themanagement teams noted
that their current drill rigswere unable tomatch theDP1500i’spenetration rate due to the
excessive friction of the bit, which limited drilling performance and resulted in higher fuel
consumption and increased service costs.
In effect the demonstration clearly showed that theDP1500i is able to drill twice the
distance, use half the fuel with the drilling bits lasting 2.5 times longer.
Brokk and TEI
Rock Drills have
developed a
hydraulic drifter
attachment
for Brokk 100
and Brokk 160
carriers.
