SURFACE DRILLING
productive time can be assessed; the other
showing what has actually been achieved with
autonomous drilling, which was very close to what
the models predicted.
Looking at much less digitised drill models, at
CONEXPO-CON/AGG, Epiroc showcased the DM30
II SP (Single Pass) rotary blasthole drill for
quarrying and small mining operations. The
crawler-mounted, hydraulic tophead-drive rig it
says offers faster hole-to-hole drilling and a lower
cost per tonne through single-pass capability.
Interestingly, this is effectively another global
launch of what is already one of the market
leading drills in India, where Epiroc has been
offering the DM30 II for a number of years (see
REL section including India market discussion). It
was launched originally in 2014 replacing the low
pressure DM30 and has been manufactured in
Nanjing, China. Aside from India it has also proved
popular in Indonesia and Mongolia.
Built off the same reliable platform as the
Epiroc DM45 and DML blasthole drill rigs, the
DM30 II SP is suitable for a variety of single-pass
rotary and down-the-hole (DTH) drilling
applications. It can achieve a clean hole depth of
11 m (36 ft) for single-pass applications. The small
footprint of the DM30 II makes it easy to
manoeuvre on tight benches and simple to transport
within the pit and over the road between pits.
“The DM30 II SP offers a low total cost of
ownership, with a structure design life exceeding
45,000 hours. The single-pass capability allows for
faster hole-to-hole drilling and decreases the cost
per ton. Its design and layout grants quick and
easy access to all major service points, simplifying
maintenance.”
The DM30 II SP is designed to handle 4- to 6½-
inch drill pipe with a hydraulic pulldown of up to
30,000 lbf (133.4 kN) and a hole diameter of 5½ to
7 7/8 inches (140-200 mm). A 36-foot single-pass
tower option increases productivity for 29-to-36-
foot drilling conditions by eliminating the need to
add a second drill steel.
Customers can choose a low- or high-pressure
compressor to create the
right configuration for
their drilling operation.
“Built off a proven
platform and with the
new single-pass
capability, the DM30 II
SP reduces the overall
cost of production per
tonne and improves
transportability,” said
Heino Hamman, Product
Line Manager, Blasthole
at Epiroc Drilling
Solutions. “It offers high
quality at an excellent
value — and flexibility
for the future.”
Bits
Mining
Outfitted with a
Rods
Construction
number of
Couplings
Quarrying
enhancements to help
Shanks
Tunneling
keep operators safe on
DTH
Water-well
®
the job, the DM30 II SP
R o c k M o r e ®
features a FOPS (Falling
International
Object Protective
Rock Drilling Tools
Structure) cab, ground-
Wilsonville, Oregon USA
Judenburg, Austria
level isolation and an
Tel +1 (503) 682-1001
Tel +43 3572-86300
[email protected][email protected]
airend safety shutdown
system for high-
temperature situations. A
Drill
More
with RockMore
56 International Mining | APRIL 2020
Above and right: Blasthole drill productivity –
the autonomous upside from real results
300-gallon fuel tank allows the rig to continuously
operate for more than 14 hours before refill.
For increased operator comfort, the DM30 II SP
features an insulated, pressurised, heated and
cooled cab with tinted glass, a suspension seat,
80 dBA noise level and excellent visibility. All
operational functions are controlled from the
driller’s console, and the ergonomic layout allows
operators to instantly switch from drilling to
tramming for increased productivity. In addition,
the electric-over-hydraulic controls are common
across the DM series, making operation easy for
drillers with DM series experience.
Epiroc made a global launch of its DM30 II SP
drill at CONEXPO