A new face drilling rig for narrow tunnels and ... - Advanced Mining

Three heavy chain dredgers, a big wheel loader, two
dump trucks and two dumpers ensure that every day
2,000 tons of limestone are loaded and transported to the
primary crusher. Two chain dredgers are newly added to
the machinery, a PC450LC-8/HD and a PC600-8/SE, both
from Komatsu. Jendersie mentioned that “previously there
have been good experiences with a used PC340”. The same
applies to the new HD405-7, the second dump truck of the
Japanese manufacturer, which reliably provides services
in the quarry. “The machines have also convinced us with
regard to fuel consumption” states Jendersie.
Hatch Developed by Supplier
Since the quarry encompasses three pits, one of which
can only be accessed through a public street, the basin
of the HD405-7 was equipped with a hatch specially
developed by Reif Baumaschinen. In the workshops of
the Komatsu retailer, with its main office in Ansbach, the
cavity-faces were heightened by 20 cm. This allows for the
386 kW (525 PS) strong machine to drive fully loaded and
with approximately 75 tons, without material falling down
and people being jeopardized. Furthermore, each time it
comes out of the quarry, the dump truck is cleaned in a
few seconds in an automatic washer system. Through this
the road crossing is kept perfectly clean.
Issue 04 | 2010
NEWS & REPORTS
The two new Komatsu chain dredgers are fully equipped
for the hard work in the quarry. The PC600-8/SE has a
particularly resistant Lehnstoff special bucket with a highly
wear-resistant Komatsu- tooth system. It has a net weight
of 3.5 t and a capacity of 3,5 m³.
A special ascent, a guard rail, and a safety guard
ensure the safety of the driver and the service personnel.
The water-cooled and turbo-charged diesel engine of
the over 60 ton machine and the motor of the dump truck
accomplishes 323 kW (439 PS) and fulfills the Tier-III-norm.
The same applies to its smaller brother, the 263 kW (358
PS) strong PC450LC-8/HD.
Apart from a reinforced undercarriage and a boom, it
possesses the highly wear resistant KMAX- tooth system of
Komatsu, in which the spikes can be exchanged according
to working conditions. Furthermore all three machines are
equipped with the KomtraxTM machine detection system.
It provides information about the location and status of
the machines via satellite and internet, and thus ensures
an efficient fleet management. This does not only help to
prolong the operational readiness, but also the service life
of the machines.
FOR MORE INFORMATION AND CONTACT:
Reif Baumaschinen
Kerstin Reif
An der Eich 8
91522 Ansbach | Germany
Tel.: +49(0) 981 - 969 44 44
Fax: +49(0) 981 - 969 44 27
email: k.reif@reif-baumaschinen.de
Internet:
www.reif-baumaschinen.de
www.komatsu-deutschland.de
Komatsu:
The trough of the HD405-7 is equipped
with a hatch specially developed and
produced by Ralf Baumaschinen. In
the workshops of the Komatsu retailer,
with its main office in Ansbach, the
cavity-faces were heightened by
20 cm.
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