Liebherr top technology

Cranes for wind power

2
Liebherr cranes are the cranes
of choice for installing wind
power systems

The use of wind power has been known for centuries. Whereas previously the mechani-
cal energy of the windmill was used, windmills are now used mainly to generate electrical
energy. The development of ever more powerful wind power systems is continuing apace
and the height of the towers on which the systems are mounted is increasing. Liebherr is
meeting the challenges of these developments with cranes with an optimised perform-
ance and new jib systems designed to meet the needs of the wind power industry. In-
novative technology, high quality and efficiency combined with a long service life have
ensured a leading position in the world market for Liebherr mobile and crawler cranes.

3
 Mobile crane LTM 1400-7.1
140

Optimised load capacity

120
The LTM 1400-7.1 is the optimum mobile crane for installation
of 1 MW class wind power systems on towers up to approxi-
mately 70 m high. Smaller systems can be mounted on corre-
100 spondingly higher towers. Unaffected by wind and lateral solar
radiation, the new Y-pattern guying ensures that the telescopic
Hook height in metres

boom is aligned in its correct geometry at all times. Additional

80 stabilisation of the boom system is provided by a spacer in
conjunction with lattice jibs.

60 Compact and extremely versatile

The LTM 1400-7.1 is the most compact crane in its class. This
makes it particularly suitable for the erection of wind power
40 systems in mountain and coastal regions. All axles are steered,
with the active speed-dependent rear axle steering being in-
tegrated into the steering system. Six steering modes, prese-
20 • TYSN boom system
lectable from fixed programmes, offer the smallest turning radii,
precise and stable travel even at high speeds, substantially
reduced tyre wear, and at the same time provide the highest
0 10 20 30 40 50 60 70 level of safety.
Load capacity in tonnes

Short assembly times means high efficiency

A feature unique on the market is the facility to self-assemble the Y-pattern
guying on the crane without the need for an auxiliary crane. A 60 t ballast in-
cluding winch 2 and winch 3 can be installed with a single lift. With a transport
width of only 3 m, the “60 t package” can be transported on a low-loader. The
T Telescopic boom
facility to hydraulically increase the ballast radius from 5.6 m to 6.6 m reduces
Y Y-pattern guying

the transport of ballast for a number of applications. A practical design also S Spacer

means that short assembly times are achieved even when fitting lattice jibs. N Luffing jib

TYSN

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 Technical data LTM 1400-7.1
Max. lifting capacity 400 t
Telescopic boom 60 m
Max. lifting height 130 m
Carrier engine Liebherr 8-cylinder turbo-diesel
power 440 kW
Crane engine Liebherr 6-cylinder turbo-diesel
power 240 kW
Drive/steering 14 x 8 x 14
Travel speed 80 km/h
Weight 84 t (7 x 12 t axle weight)

5
 Mobile crane LTM 1500-8.1
150

140 Successful crane concept

130 Since 1988, more than 100 eight-axle LTM
1500-8.1 cranes have been delivered to cus-
120
tomers throughout the world. It is the stand-
110 ard crane for the erection of wind power sys-
100
tems of the 1.5 MW class on towers up to
more than 80 m high. With the development
90
Hook height in metres

of Y-pattern guying and the spacer, Liebherr

80 has met the load capacities required for the
wind power industry.
70

60 Multivariable boom system

The 50 m long telescopic boom can be ex-
50
tended to 84 m using only three additional
40 telescopic sections. With additional jibs such
• TY2SN boom system - Boom 50 m as fixed or luffing lattice jibs, 63 m or 91
30
• TY2EF Boom system - Boom 84 m long, and a whip line and assembly jib, also
20 hydraulically adjustable, the LTM 1500-8.1
10 offers a particularly wide range of applica-
tions.
0 10 20 30 40 50 60 70 80 90 100
Load capacity in tonnes

Practical assembly systems

The ballast base plate and the six ballast plates together with the winch
frame with winches 2 and 3 can be assembled as a complete unit. The de-
sign also ensure simple and fast erection even when fitting lattice jibs and T Telescopic boom

Y
the Y-pattern telescopic boom guying.
Y-pattern guying

S Spacer

E Eccentric

F Fixed jib

N Luffing jib

TY2SN TY2EF

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 Technical data LTM 1500-8.1
Max. lifting capacity 500 t
Telescopic boom 50/84 m
Max. lifting height 145 m
Carrier engine Liebherr 8-cylinder turbo-diesel
power 440 kW
Crane engine Liebherr 6-cylinder turbo-diesel
power 240 kW
Drive/steering 16 x 8 x 12
Travel speed 77 km/h
Weight 96 t (8 x 12 t axle weight)

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 Crawler crane LR 1350/1
160
The SDWB system
150 The 27 m long derrick boom with a maximum of
200 t suspended ballast or ballast trailer enables lift-
140
ing heights of up to 120 m to be obtained on the main
130 boom and up to 150 m on the jib. The ballast trailer can
120 be telescoped from a 11 m up to a 15 m radius, while
the suspended ballast can be moved via the derrick jib
110 in this reach range.
Hook height in metres

100
The SLF system
90
A fixed jib is mounted on the SL main boom. Using
80 this simple system, a system length of 114 m can be
70
assembled and erected in the minimum erection time.
A derrick boom is not necessary.
60

50 • SDWB boom system The SWF system

• SWF boom system With a main boom of 54 m, a luffing jib of 66 m and a
40 fixed jib 36 m long permanently mounted on the luffing
• SLF boom system
30 jib, it is possible to erect a total system of 156 m with-
out a derrick boom.
20

10

0 10 20 30 40 50 60 70 80 90
Load capacity in tonnes

Efficient transport logistics

The LR 1350/1 crane concept is based on the latest
drive and control technology, is easy to transport, has
a lightweight boom system with a very high lifting ca-
pacity and can be efficiently erected and transported.
The extremely compact dimensions of the basic unit
– crane length 9.7 m, track width 8.4 m and maximum
turning radius 8 m – are unrivalled in the 350 t class.
With a minimum transport weight of 40 t without
winches, the basic machine can move anywhere in S Main boom, heavy

the world without restrictions and can be self-erected L Main boom, light

using optimum accessories. W Luffing jib, heavy

D Derrick system

B Suspended ballast

F Fixed jib

SDWB SLF SWF

S 30 m – 84 m SLF 36 m – 96 m S 48 m– 60 m
W 24 m – 90 m F 12 m – 36 m W 42 m – 78 m
D 27 m F 12 m – 36 m

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 Technical data LR 1350/1
Max. lifting capacity 350 t
Max. lifting height 150 m
Max. reach 100 m
Carrier engine/crane engine Liebherr 6-cylinder turbo-diesel
Power 270 kW
Track width 7.2 m
Max. superstructure ballast 125 t
Max. central ballast 38 t
Max. derrick ballast 200 t x R 15 m

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 Crawler crane LR 1400/2
170
High functionality
160 A multifunctional boom system, simple and safe
crane assembly and economical transport of the
150 crane components are the convincing features
of the LR 1400/2. The 400 t crane offers a boom
140 module with the main boom and jib in lightweight
and heavyweight versions as well as the derrick
130
device with a telescopic suspended ballast or
120 ballast trailer to increase the load capacity. These
systems enable a universal adaptation of the
110 crane to the various operating conditions.
Hook height in metres

100 Boom systems

Boom systems tailored to the special require-
90
ments of wind power were developed from
80
known boom combinations. One example is the
SF2 system that enables 2.5 MW class wind
70 power systems to be erected on 80 m high tow-
ers. Using a derrick system, it is possible to
60 achieve tower heights of as high as 100 m.

50
• SDWB boom system
40
• SLN boom system
• SF2 boom system
30
• SDF2B boom system
20

10

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140

Load capacity in tonnes
S Main boom, heavy

L Main boom, light

W Luffing jib, heavy

N Luffing jib, light

D Derrick system

B Suspended ballast

F Fixed jib

SDWB SLN SDF2B SF2

10
 Technical data LR 1400/2
Max. lifting capacity 400 t
Max. lifting height 162 m
Max. reach 120 m
Carrier engine/crane engine Liebherr 6-cylinder turbo-diesel
Power 300 kW
Track width 7.5 m
Max. superstructure ballast 155 t
Max. central ballast 43 t
Max. derrick ballast 260 t x R 15 m

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 140

130

Crawler crane LR 1400/2-W 120

110
140
High mobility due to narrow track
130
A track running gear100only 4.8 m wide was de-
veloped to enable the crawler crane to travel
120 on narrow access paths. 90 When completely
erected, the LR 1400/2-W can move on exist-
110 ing paths from system to system. The supports

Hakenhöhe in Meter
80
with the fitted support plates are swung back-
100 wards or forwards to the running gear when
travelling. When lifting,70the crane is supported
90
by 11.5 m wide star-pattern supports. The fol-
Hook height in metres

80 lowing systems are offered

60 as a special wind
power boom: SF2 system, main boom with
70 fixed jib and, for higher load requirements, the
50
SDF2B system consisting of a main boom with
60 fixed jib, derrick and suspended ballast.
40
50
Double-jointed for easy cornering
• SDF2B boom system By means of two slewing • Auslegersy
40 30 connections, the
• SF2 boom system chassis, intermediate section with supports and• Auslegersy
30 crane superstructure can be rotated as required
relative to each other,20
thus enabling the crawler
20 crane to negotiate even the tightest bends with-
out the ground surface 10being damaged by the
10
tracks. When changing the direction of travel,
the crane is supported on the star-pattern sup-
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 0 10 20 30 40 50 60 7
Load capacity in tonnes Traglast i

ports, the raised running gear rotates to the new required direction of
travel and, after the supports are retracted and the centre section and
crane superstructure again rotated to the new direction of travel, the
crane can continue in the required new direction. The crane running
gear, the slewing sections and the supports are controlled by remote
radio control.

S Main boom, heavy

D Derrick system

B Suspended ballast

F Fixed jib

SF2 SDF2B

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 Technical data LR 1400/2-W
Max. lifting capacity 400 t
Max. lifting height 132 m
Max. reach 112 m
Carrier engine/crane engine Liebherr 6-cylinder turbo-diesel
Power 300 kW
Track width 3.6 m
Max. superstructure ballast 155 t
Max. derrick ballast 200 t x R 15 m

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 Crawler crane LR 1750
200
Wide application spectrum
The LR 1750 offers the required high load capac-
ity for erection of the latest generation of wind
180
power systems. Special boom systems that can
be used universally, derrick boom with telescopic
160 suspended ballast or ballast trailer and support-
ing devices for use as a “pedestal crane” char-
acterise the 750 t crawler crane’s wide range of
140 applications. A practical design ensures simple,
safe crane assembly and short erection times.
Hook height in metres

120 The SLK boom and jib system

The SLK boom and jib system was developed
specially for the erection of wind power systems.
100 It enables long main booms up to 135 m hook
height with a reduced ballast and without a der-
rick boom to be erected. During erection, the
80 front section of the main boom is first inclined
downwards and is then raised using a winch after
the lower section of the main boom has reached
60 • SDWB boom system
the erected working position.
• SL7DHS boom system
• SLK boom system
40 • SL8HS boom system

20

0 20 40 60 80 100 120 140 160 180 200 220 240 260

Load capacity in tonnes

S Main boom, heavy

L Main boom, light

W Luffing jib, heavy

D Derrick system

B Suspended ballast

K Articulated main boom

HS Auxiliary jib

SDWB SL7DHS SLK SL8HS SL4HS

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 Technical data LR 1750
Max. rating load 750 t
Max. lifting height 191 m
Max. reach 136 m
Carrier engine/crane engine Liebherr 8-cylinder turbo-diesel
Power 400 kW
Track width 8.8 m
Max. superstructure ballast 245 t
Max. central ballast 95 t
Max. derrick ballast 400 t x R 20 m

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 Lattice boom mobile crane LG 1550
160
High mobility
The LG 1550 has become established as the ideal crane
150 for the erection of wind power systems of the 2 MW to
3 MW class on towers over 100 m high. The eight-axle
140 LG 1550 arrives at the site complete with a slewing plat-
form and supports and is thus ready for action in the
130 shortest possible time. The folding arms of the star-pat-
tern supports can be completely folded into the vehicle
120 width. This enables the crane to negotiate the narrowest
of access paths. Four of the eight axles are fitted with twin
110 tyres. This means that there are 24 wheels to provide the
load-bearing capacity necessary for the crane to move
100 on-site with the major part of its equipment and the bal-
last.
Hook height in metres

90
The boom and jib systems
The SL3H and SL5H boom and jib systems enable hook
80
heights of over 100 m to be reached. With inclined as-
sembly jib, the SL main boom can be erected without a
70 derrick system. The new “articulated main boom „SLK“
enables wind power systems to be erected up to a 118 m
60 hook height. This also saves the transportation and as-
sembly of a derrick system. The long boom is first erected
50 with the upper section inclined downwards. After the
lower section has reached the steep working position, the
40 • SDWB boom system top section is raised using a winch and held cushioned
• SLK boom system against a fixed stop by spring assemblies.
• SL5H boom system
30
• SL3H boom system

20

10

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

Load capacity in tonnes

S Main boom, heavy

L Main boom, light

W Luffing jib, heavy

D Derrick system

B Suspended ballast

K Articulated main boom

SDWB SLK SL5H SL3H

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 Technical data LG 1550
Max. lifting capacity 550 t
Max. lifting height 180 m
Max. reach 124 m
Carrier engine Liebherr 8-cylinder turbo-diesel
power 440 kW
Crane motor Liebherr 6-cylinder turbo-diesel
power 300 kW
Drive/steering 16 x 8 x 12
Travel speed 80 km/h
Max. superstructure ballast 200 t
Max. derrick ballast 250 t x R 13 m
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 Lattice boom mobile crane LG 1750
200
Modular concept
The LG 1750 boasts load capacities sufficient for the
erection of wind power systems of the 5 MW class.
180
For the LG 1750, Liebherr uses the slewing crane
platform and the boom and jib systems from the LR
1750 crawler crane together with a completely new,
160 state-of-the-art eight-axle chassis. With the supports
fully retracted, the 3 m wide chassis has the ad-
vantage of being able to travel on the narrow paths
140 within the wind farm from system to system.

Interchangeable boom and jib system

The LR 1750’s complete boom and jib system is
120
Hook height in metres

used for the LG 1750. Because of the rigid design

of the star-pattern supports, the extraordinarily wide
support base measuring 16 m x 16 m and the slew-
100 ing platform extension, the load capacity of LG 1750
can even be increased beyond that of the crawler
crane, with ballast also being reduced.
80

60

• SDWB boom system

• SLK boom system
40
• SL9D2FB boom system
• SL8HS boom system

20

S Main boom, heavy

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 L Main boom, light

Load capacity in tonnes W Luffing jib, heavy

D Derrick system

B Suspended ballast

K Articulated main boom

The LG 1750 also offers the new SLK boom F Fixed jib

HS
system that provides increased lifting heights
Auxiliary jib

without the need for a derrick system.

SLK SDWB SL9D2FB SL8HS
SLK 108,5 m – 133 m S 35 m – 91 m S 35 m – 126 m
W 28 m – 105 m D 42 m
D 31,5 m F 12 m
D 31,5 m

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 Technical data LG 1750
Max. lifting capacity 750 t
Max. lifting height 191 m
Max. reach 136 m
Carrier engine Liebherr 8-cylinder turbo-diesel
power 440 kW
Crane motor Liebherr 8-cylinder turbo-diesel
power 400 kW
Drive/steering 16 x 8 x 16
Travel speed 80 km/h
Max. superstructure ballast 245 t
Max. derrick ballast 400 t x R 20 m

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The Liebherr plant in Ehingen
The world’s most highly developed mobile crane factory

Liebherr is the leading manufacturer of mobile cranes. The range of the all-terrain mobile
cranes extends from two-axle 35 t cranes up to heavy load cranes with a load capacity
of 800 t and an eight-axle chassis. The lattice-boom cranes on mobile and crawler vehi-
cles achieve load capacities of up to 1,250 t. With their universal boom and jib systems
and comprehensive additional equipment they are used on building sites throughout the
world.

Liebherr-Werk Ehingen GmbH was founded in 1969. To consolidate and further advance
their international position as a leading provider of mobile and crawler cranes, operating
capacity has been comprehensively extended in recent years. The Liebherr plant in Ehin-
gen now covers a total area of 535,000 m2, of which more than 155,000 m2 is a roofed
manufacturing facility. Up to 1,400 mobile cranes can be built each year. A comprehen-
sive, worldwide service guarantees the high availability of mobile and crawler cranes.

Subject to modifications. P 358.E06.2005

Liebherr-Werk Ehingen GmbH

Postfach 1361, D-89582 Ehingen
 +49 7391 502-0, Fax +49 7391 502-33 99
www.liebherr.com, E-Mail: info.lwe@liebherr.com