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Material handling machine
LH 120 C
Job Report
The LH 120 C Litronic material
handling machine in action
at Schrott- und Metallhandel
M. Kaatsch GmbH
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Situation
Scrap recycling protects raw material resources, saves energy
and protects the environment. To ensure that the recycling
process can be carried out economically the old materials must
be collected, sorted and treated correctly so that they can be
used as secondary raw materials. Schrott- und Metallhandel
M. Kaatsch GmbH is a waste disposal contractor with a highly
modern range of machinery and an extensive infrastructure which
enables it to make a significant contribution to this process.
The company is one of the most important and largest handling
companies for scrap and metals in Southern Germany. When it
was founded in 1952 by Margarete Kaatsch, M. Kaatsch Schrottund Metallhandel was the first step in a successful company
history bridging several generations. From humble beginnings
with a horse and cart, the company’s willingness to accept new
production techniques meant that it developed into a handling
company with its own port facilities and into a healthy, growing
business. In the hands of Managing Director Hermann Wager
and Scholz AG in Esslingen since 1988, Kaatsch GmbH has
developed into a modern recycling company. The small scrap and
metal storage facility from the 1950 has expanded not only in the
form of the company’s own fleet of vehicles but also with rail and
Task
Scrap is a mass volume material which means that transporting
it by waterway is an economical solution. An inland waterway
vessel on the River Neckar to date has had an average cargo
capacity of around 1250 tonnes. This corresponds to around 60
truckloads. The vessels are becoming increasingly larger and
they now have a capacity of up to 2000 tonnes of scrap. Since
the time when they are tied up costs money, the objective is to
load and unload these vessels as quickly as possible.
quay facilities. Since 1982 the company’s site has been extended
with environmental and bulk goods storage buildings and sound
protection systems to comply with environmental regulations.
Since 2004 Kaatsch has also operated a waste timber treatment
plant. Today the company in Plochingen has over 7,000 square
metres of production and storage space on which an average of
500,000 tonnes of material is handled every year.
The company site right on the railway intersection in Plochingen
with its own port facilities on the River Neckar is just about ideal
for transporting material by rail and water. Large quantities of the
treated scrap are loaded into vessels straight from the storage
site. The material then goes to supply steelworks in both Germany
and elsewhere with this valuable material by waterway which
protects the environment and saves energy.
A large number of Liebherr handling machines in various sizes
with mobile and crawler undercarriages is used for loading and
unloading trucks and railway wagons, for sorting the storing
scrap, feeding the 1,200 tonne scrap shears and for loading and
unloading ships.
This results in an increase in loading capacities. This also
reduces storage costs since the material is stored for as short
a time as possible. To achieve these objectives the company
decided to purchase a larger, more efficient handling machine.
The requirements for it were more grapple capacity and the
ability to get a greater reach and height range.
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Solution
A long term partnership has developed between Liebherr and
Kaatsch, a specialist in the recycling industry and a technology
leader in scrap recycling as a result of the latter’s good
experience with Liebherr machines. Kaatsch has been using a
fleet of 30 Liebherr handling machines with mobile and crawler
undercarriages for many years for sorting and handling scrap.
In close cooperation with Kaatsch, Liebherr designed and built
a handling machine perfectly tailored to the needs of a modern,
pioneering scrap and material trading company - the Liebherr
LH 120 C Litronic material handling machine which has been in
use since 2009 for loading and unloading vessels.
The machine, which weighs around 135 tonnes and develops
around 400 kW of power, is equipped with a 15 m industrialtype angled boom, a 12 m industrial-type stick and a grapple
with a capacity of 2.5 m³. This balanced industrial kinematic
ensures a maximum reach of 25.0 m to the centre of the grapple
and a maximum height range of 22.5 m with the grapple open.
In addition at maximum radius throughout the swivel range
of 360° the machine has a load of 7 tonnes on crane hook.
A large undercarriage with a square design provides excellent
stability and enables the user to take advantage of the maximum
handling capacity.
Coordinated components, the majority manufactured by
Liebherr, ensure that the machine is highly economical.
The multi-circuit hydraulic system and the Liebherr diesel engine
have been perfectly tailored to each other with reduced engine
speed and large flow cross-sections in the hydraulic hoses
and hydraulic components ensuring extremely low losses.
Other features such as the „Positive Control“ hydraulic system
ensure fast and precise working movements during the handling
process. Since superimposed operating cycles can be activated
individually but also in combination, this ensures excellent use of
energy. All these innovations are reflected in drastically reduced
fuel consumption.
The LH 120 C material handling machine allows modular,
driver-independent joystick programming. This feature makes it
possible to program individual settings on the machine for each
driver.
Two separate temperature-controlled fans ensure that the
hydraulic system, air, water and fuel are kept at their perfect
operating temperatures. The separate cooler system is
temperature-controlled and thus enhances the machines energy
efficiency. The „Retract arm without pressure“ function is a
major contributor to the machine’s efficiency. The fundamental
benefits of this include:
- Fuel savings - no increase in pressure
on the arm cylinder ring side
- Improved performance - the power saved
can be used for hoisting
- Higher hoist speed - the complete operating
cycle is around 10% faster
- Safety - due to the automatic braking
of the arm whilst it is being retracted
The LH 120 C material handling machine is LiDAT-capable
which means that the customer can record the machine’s
relevant operating data at any time, transfer them and evaluate
them accordingly. In addition LiDAT supplied service interval
information which helps to improve time management for
machine maintenance.
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Technical Data Equipment
LH 120 C Litronic
Operating weight
Engine type
Engine output
Emission stage
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Liebherr D 9508, 8-Zylinder-V-Engine
400 kW / 543 PS at 1,800 min
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135
Tonnes
-1
IIIA
Undercarriage:
Track gauge
Wheelbase
Flat pads
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5.70 m
7.20 m
750 mm
Loading capacity
A Dutch inland vessel was loaded with 1,630 tonnes of scrap,
the equivalent of 2,500 m³ destined for a French steelworks
in approx. 5 hours. Loading straight from the port facility with
a swivel radius of 180° allowed the machine to achieve a loading
capacity of 300 tonnes per hour.
Industrial-type angled mono boom
Industrial-type stick
Grapple type
Max. reach
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Max. heap height
Max. load
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15.0 m
12.0 m
GMM 120 with 2.5 m³
25.0 m
22.5 m
7
Tonnes
Liebherr-Hydraulikbagger GmbH
Liebherrstraße 12, D-88457 Kirchdorf / Iller
+49 7354 80-0, Fax +49 7354 80-72 94
www.liebherr.com, E-Mail: info.lhb@liebherr.com
www.facebook.com/LiebherrConstruction
Printed in Germany by Typodruck BK LHB 11658552-1.0-12.13_enGB Subject to technical modifications.
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