Liebherr machines in quarrying – Liebherr L 556 User Manual
Page 45
Quarrying // 45
In
Colmar, France, Liebherr manufactures
crawler excavators weighing between
20 tons and 110 tons. Every crawler
excavator is perfectly tuned to the
requirements that await it in practical
operation. The machines are subject to a
continual improvement process to
increase productivity and economy.
With all crawler excavators, the driver
can choose any of four operating modes.
The mode preselection switch adapts
the engine and hydraulic power to
the operating conditions encountered, for
example, for maximum digging
performance in heavy-duty operations
or for maximum economy and minimal
environmental impact. The “E-Economy”
mode for economical, eco-friendly
working is recommended for normal
working conditions. The automatic idling
function is controlled by sensors and
provides for reduced fuel consumption.
If there is no working movement within a
predefined period of time, an automatic
start/stop function is activated. This also
contributes to reduced fuel consumption.
When working in a quarry, some excavator
components are exposed to hazards, for
example, damage caused by flying stones.
That is especially possible if a cast steel
drop ball is used for blasting material.
Special protective features have been
developed for such operations to prolong
the service life of the most important
components. Our customers are able to
choose the relevant options. These include
a piston rod guard for the hoist and bucket
cylinder, hose protection for the hoist
cylinder, bottom boom protection for the
stick and monoblock or a cover for the
slewing mechanism and lubrication lines.
Besides the standard machines Super
Mass Excavation (SME) excavators, such
as the R 950 SME, R 960 SME, R 970
SME and the R 980 SME, are especially
well-suited for quarrying operations and
offer a number of special features. The
excavator is equipped with a reinforced
under carriage featuring under carriage
components from the next model up in
the product range. In conjunction with a
greater ballast weight, these improve the
stability of the machine, even with a larger
bucket volume. The equipment has been
adapted to allow for higher tearout and
breakout forces. The bottom line is that
these measures enhance the performance
and economy of the excavators. SME
excavators are available worldwide with
III A / Tier 3 or III B / Tier 4i engines.
The
wheel loaders are manufactured
in
Bischofshofen, Austria. They achieve
maximum turnover rates with low operating
costs. With the combination of Liebherr
travel drive and the advantageous
installation position of the diesel engine,
the machines achieve high tipping loads,
which increases productivity.
The machines consume up to 25 % less
fuel than conventionally powered wheel
loaders. The basis for this is the drive
concept. The hydrostatic travel drive allows
the Liebherr diesel engine to be installed
at the rear. Compared to conventionally
driven wheel loaders, this leads to a higher
tipping load with considerably lower
operating weight and a higher turnover
rate per hour of operation. The travel drive
automatically adjusts the tractive force and
speed to the requirements of the quarrying
operation. This reduces tire wear by up to
25 % and brake wear almost completely.
Large wheel loaders such as the L 586,
currently the world’s largest hydrostatically
powered wheel loader, are primarily used
in the quarrying industry. For all machines,
there is a range of equipment options
available that are needed for the intensive
operations encountered in the quarrying
of raw materials. These include rock and
rehandling buckets and special tires for
use in quarrying. The cab is noise insulated
as standard for safe and comfortable
working; non-slip step surfaces and stable
hand rails provide additional safety. The
freely adjustable control lever, which is
produced in-house, is fitted as standard.
The same thing applies to the rear-view
camera (on the L 550 to L 580) and the
steel fuel tank. Optionally, a protective
grille can also be selected for the
windscreen or a protection for the tilt
cylinder.
Power and innovative technology are the
hallmarks of the
crawler tractors built in
Telfs, Austria. Whether they are used for
tough digging operations or shifting heavy
material, the PR 754 and PR 764 impress
in all operations with their outstanding
performance and economy.
Liebherr machines in quarrying
Liebherr machines are used in a variety of quarrying operations. Excavators, wheel loaders,
crawler tractors and articulated trucks work with enormous power and yet low fuel consumption.
That means they make it possible to work economically in quarrying.
Overview
Liebherr machines are used for various
applications in the quarrying industry.
- 1000 EC-H 40 Litronic
- T 264
- LTM 1100-5.2
- HS 8070 HD Litronic
- HS 8070 HD Litronic
- HS 8070 HD Litronic
- HS 8070 HD Litronic
- HS 8070 HD Litronic
- LRB 255
- HS 8070 HD Litronic
- LRB 255
- LTM 1070-4.2
- HS 8100 HD Litronic
- HS 8100 HD Litronic
- LTR 1220
- LTM 1055-3.2
- LTM 1090-4.1
- LTM 1400-7.1
- LTM 1400-7.1
- HS 885 HD Litronic
- HS 885 HD Litronic
- LTM 1095-5.1
- L 524
- L 550
- ER 934 C High Rise
- ER 934 C High Rise
- ER 954 C Material Handler
- ER 934 C High Rise
- ER 934 C Material Handler
- HS 895 HD Litronic
- LTM 1200-5.1
- LTM 1200-5.1
- HS 855 HD Litronic
- LTM 1350-6.1
- EP 934 C Stationary Materiel Handler
- LTM 1250-6.1
- L 524
- EP 944 C Stationary Material Handler
- LTR 1100
- LTM 1060-3.1
- LTM 1500-8.1
- LTM 1130-5.1
- T 284
- LTM 1040-2.1
- LTM 1220-5.2
- LTM 1220-5.2
- LTM 1050-3.1
- LTR 1060
- HS 8070 HD Litronic
- 85 EC-B 5
- 1000 EC-B 125 Litronic
- Betomix
- PR 764 Litronic
- PR 764 Litronic
- PR 764 Litronic
- PR 764 Litronic
- PR 764 Litronic
- LTF 1060-4.1
- LTF 1045-4.1
- LTM 1030-2.1
- LTM 1030-2.1
- TA 230 Litronic
- TA 230 Litronic
- 150 EC-B 6 FR-tronic
- LR 1160
- LR 1250
- 34 K
- LTM 1160-5.1
- LTM 1100-4.2
- LRB 255
- LB 20
- LB 16
- LB 44
- LRB 255
- LB 44
- LB 16
- LB 20
- LRB 255
- LB 20
- L 586
- L 586
- L 586
- L 586
- L 586
- LR 624 Litronic
- LR 624 Litronic
- LR 624 Litronic
- LR 624 Litronic
- LR 624 Litronic
- LR 624 Litronic
- L 566
- LR 1130
- LR 1130
- LB 28
- LB 28
- LB 28
- LTM 11200-9.1
- LB 36
- LB 36
- LB 36
- 357 HC-L 18-32 Litronic
- LB 24
- LB 24
- LB 24
- 172 EC-B 8 Litronic
- LB 16
- LB 16
- LB 16
- LR 1100
- LR 1100
- LR 1750
- LTC 1045-3.1
- ER 934 C High Rise
- LB 44
- LB 44
- LR 1300
- LR 1300
- LR 1300
- LR 1300
- LR 1300
- LR 1300
- LR1200 SX Litronic
- LR1200 SX Litronic
- LR1200 SX Litronic
- LR1200 SX Litronic
- LR 1280
- LR 1280
- LR 1280
- LR 1160
- LR 1160
- 81 K
- 65 K
- HS 8030 HD Litronic
- Compactmix 1-0
- L 580 LogHandler
- L 580 LogHandler
- PR 744 Litronic
- Mobilmix 2-25
- A 924 Litronic
- A 924 Litronic
- A 924 Litronic
- 53 K
- L 524
- L 550
- L 550
- 81 K
- LRB 255
- LRB 255
- LRH 100
- Grúas Offshore de carga pesada
- Grúas Offshore para plataforma de sondeo serie BOS
- Grúas Offshore para plataforma de sondeo serie BOS
- R 995
- R 996 B
- R 996 B
- R 996 B
- R 996 B
- LRB 125 XL
- LRB 255
- LRB 125 XL
- LRB 255
- LRB 255
- LRB 125 XL
- LRB 125 XL
- LRB 125 XL
- LRB 255
- LRB 255
- LRB 255
- Downloads
- Downloads
- Downloads
- Downloads
- Downloads
- Downloads
- Downloads
- Downloads
- Downloads
- Downloads
- HS 8300 HD Hybrid
- RL-K 4200
- 380 EC-B 12 Litronic
- 380 EC-B 16 Litronic
- R 9100
- R 9350
- R 9350
- LRH 100
- LRH 100
- LRB 155
- LRB 155
- R 9250
- Grúas Offshore de carga pesada
- Tipo CBG 300
- LRB 255
- LRB 255
- 200 DR 5-10 Litronic
- MK 140
- R 9100
- MK 88
- MK 88
- MK 88
- Mobile mixer system
- R 9800
- R 9800
- MK 63
- Pin Puller
- R 995
- R 995
- Mixing Towers
- 26 K-1
- LTF 1045-4.1 Kenworth
- LTM 1055-3-1
- Crawler concrete pumps
- Truck-mounted concrete pumps
- LBS - Barge Solutions