Cranes for Wind Power

7/27/2019 Cranes for Wind Power

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Liebherr top technology Cranes for wind power



Liebherr cranes are the cranesof choice for installing windpower 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.



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TYSN

Mobile crane LTM 1400-7.1

Optimised load capacity 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-

spondingly higher towers. Unaffected by wind and lateral solar

radiation, the new Y-pattern guying ensures that the telescopic

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

stabilisation of the boom system is provided by a spacer in

conjunction with lattice jibs.

Compact and extremely versatileThe LTM 1400-7.1 is the most compact crane in its class. This

makes it particularly suitable for the erection of wind power

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-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

level of safety.

Telescopic boom

Y-pattern guying

Spacer

Luffing jib

T

Y

S

N

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

facility to hydraulically increase the ballast radius from 5.6 m to 6.6 m reduces

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

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

TYSN boom system

Load capacity in tonnes

H o o k h e i g h t i n m e t r e s



Technical data LTM 1400-7.1Max. lifting capacity 400 t

Telescopic boom 60 m

Max. lifting height 130 m

Carrier enginepower

Liebherr 8-cylinder turbo-diesel440 kW

Crane enginepower


Drive/steering 14 x 8 x 14

Travel speed 80 km/h

Weight 84 t (7 x 12 t axle weight)



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TY2SN TY2EF

Mobile crane LTM 1500-8.1

Successful crane conceptSince 1988, more than 100 eight-axle LTM

1500-8.1 cranes have been delivered to cus-tomers throughout the world. It is the stand-

ard crane for the erection of wind power sys-

tems of the 1.5 MW class on towers up to

more than 80 m high. With the development

of Y-pattern guying and the spacer, Liebherr

has met the load capacities required for the

wind power industry.

Multivariable boom systemThe 50 m long telescopic boom can be ex-

tended to 84 m using only three additional

telescopic sections. With additional jibs such

as fixed or luffing lattice jibs, 63 m or 91long, and a whip line and assembly jib, also

hydraulically adjustable, the LTM 1500-8.1

offers a particularly wide range of applica-

tions.

Telescopic boom

Y-pattern guying

Spacer

Eccentric

Fixed jib

Luffing jib

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Y

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E

F

N

Practical assembly systems

The ballast base plate and the six ballast plates together with the winchframe 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

the Y-pattern telescopic boom guying.

TY2SN boom system - Boom 50 mTY2EF Boom system - Boom 84 m





Technical data LTM 1500-8.1Max. lifting capacity 500 t

Telescopic boom 50/84 m


Carrier enginepower


Crane enginepower




Weight 96 t (8 x 12 t axle weight)



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SDWB

SLF

SWF

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Crawler crane LR 1350/1The SDWB systemThe 27 m long derrick boom with a maximum of

200 t suspended ballast or ballast trailer enables lift-

ing heights of up to 120 m to be obtained on the main

boom and up to 150 m on the jib. The ballast trailer canbe telescoped from a 11 m up to a 15 m radius, while

the suspended ballast can be moved via the derrick jib

in this reach range.

The SLF system A fixed jib is mounted on the SL main boom. Using

this simple system, a system length of 114 m can be

assembled and erected in the minimum erection time.

A derrick boom is not necessary.

The SWF system

With a main boom of 54 m, a luffing jib of 66 m and afixed jib 36 m long permanently mounted on the luffing

jib, it is possible to erect a total system of 156 m with-

out a derrick boom.

Main boom, heavy

Main boom, light

Luffing jib, heavy

Derrick system

Suspended ballast

Fixed jib

Efficient transport logisticsThe LR 1350/1 crane concept is based on the latest

drive and control technology, is easy to transport, hasa 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

the world without restrictions and can be self-erected

using optimum accessories.

SDWB boom system

SWF boom systemSLF boom system





Technical data LR 1350/1Max. lifting capacity 350 t


Max. reach 100 m

Carrier engine/crane enginePower


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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SF2SDF2BSDWB SLN

Crawler crane LR 1400/2High functionality A multifunctional boom system, simple and safe

crane assembly and economical transport of the

crane components are the convincing features

of the LR 1400/2. The 400 t crane offers a boom

module with the main boom and jib in lightweight

and heavyweight versions as well as the derrick

device with a telescopic suspended ballast or

ballast trailer to increase the load capacity. These

systems enable a universal adaptation of the

crane to the various operating conditions.

Boom systemsBoom systems tailored to the special require-

ments of wind power were developed from

known boom combinations. One example is the

SF2 system that enables 2.5 MW class windpower systems to be erected on 80 m high tow-

ers. Using a derrick system, it is possible to

achieve tower heights of as high as 100 m.

Main boom, heavy

Main boom, light

Luffing jib, heavy

Luffing jib, light

Derrick system

Suspended ballast

Fixed jib

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SDWB boom system

SLN boom system

SF2 boom system

SDF2B boom system


g



Technical data LR 1400/2Max. lifting capacity 400 t


Max. reach 120 m

Carrier engine/crane engine

Power

Liebherr 6-cylinder turbo-diesel

300 kWTrack width 7.5 m






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SF2 SDF2B

Crawler crane LR 1400/2-WHigh mobility due to narrow track A track running gear only 4.8 m wide was de-

veloped to enable the crawler crane to travel

on narrow access paths. When completely

erected, the LR 1400/2-W can move on exist-

ing paths from system to system. The supports

with the fitted support plates are swung back-

wards or forwards to the running gear when

travelling. When lifting, the crane is supported

by 11.5 m wide star-pattern supports. The fol-

lowing systems are offered as a special wind

power boom: SF2 system, main boom with

fixed jib and, for higher load requirements, the

SDF2B system consisting of a main boom with

fixed jib, derrick and suspended ballast.

Double-jointed for easy corneringBy means of two slewing connections, the

chassis, intermediate section with supports and

crane superstructure can be rotated as required

relative to each other, thus enabling the crawler

crane to negotiate even the tightest bends with-

out the ground surface being damaged by the

tracks. When changing the direction of travel,

the crane is supported on the star-pattern sup-

Main boom, heavy

Derrick system

Suspended ballast

Fixed jib

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F

ports, the raised running gear rotates to the new required direction oftravel 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.

SDF2B boom system

SF2 boom system


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Technical data LR 1400/2-WMax. lifting capacity 400 t


Max. reach 112 m

Carrier engine/crane enginePower


Track width 3.6 m





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SDWB SL7DHS SLK SL8HS

Crawler crane LR 1750 Wide application spectrumThe LR 1750 offers the required high load capac-

ity for erection of the latest generation of wind

power systems. Special boom systems that can

be used universally, derrick boom with telescopic

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

applications. A practical design ensures simple,

safe crane assembly and short erection times.

The SLK boom and jib systemThe SLK boom and jib system was developed

specially for the erection of wind power systems.

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

front section of the main boom is first inclineddownwards and is then raised using a winch after

the lower section of the main boom has reached

the erected working position.

Main boom, heavy

Main boom, light

Luffing jib, heavy

Derrick system

Suspended ballast

Articulated main boom

Auxiliary jib

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HS

SDWB boom system

SL7DHS boom system

SLK boom system

SL8HS boom system




Technical data LR 1750Max. rating load 750 t


Max. reach 136 m

Carrier engine/crane engine

Power


400 kWTrack width 8.8 m






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SDWB SLK SL5H SL3H

Lattice boom mobile crane LG1550High mobility The LG 1550 has become established as the ideal crane

for the erection of wind power systems of the 2 MW to

3 MW class on towers over 100 m high. The eight-axle

LG 1550 arrives at the site complete with a slewing plat-

form and supports and is thus ready for action in the

shortest possible time. The folding arms of the star-pat-

tern supports can be completely folded into the vehicle

width. This enables the crane to negotiate the narrowest

of access paths. Four of the eight axles are fitted with twin

tyres. This means that there are 24 wheels to provide the

load-bearing capacity necessary for the crane to move

on-site with the major part of its equipment and the bal-

last.

The boom and jib systems

The SL3H and SL5H boom and jib systems enable hookheights of over 100 m to be reached. With inclined as-

sembly jib, the SL main boom can be erected without a

derrick system. The new “articulated main boom „SLK“

enables wind power systems to be erected up to a 118 m

hook height. This also saves the transportation and as-

sembly of a derrick system. The long boom is first erected

with the upper section inclined downwards. After the

lower section has reached the steep working position, the

top section is raised using a winch and held cushioned

against a fixed stop by spring assemblies.

Main boom, heavy

Main boom, light

Luffing jib, heavy

Derrick system

Suspended ballast


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BK

SDWB boom system

SLK boom system

SL5H boom system

SL3H boom system




Technical data LG 1550Max. lifting capacity 550 t


Max. reach 124 m

Carrier engine

power


440 kWCrane motor

powerLiebherr 6-cylinder turbo-diesel

300 kW







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SLK

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SL9D2FB

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SL8HS

Lattice boom mobile crane LG1750Modular conceptThe LG 1750 boasts load capacities sufficient for the

erection of wind power systems of the 5 MW class.

For the LG 1750, Liebherr uses the slewing crane

platform and the boom and jib systems from the LR1750 crawler crane together with a completely new,

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

within the wind farm from system to system.

Interchangeable boom and jib systemThe LR 1750’s complete boom and jib system is

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-

ing platform extension, the load capacity of LG 1750can even be increased beyond that of the crawler

crane, with ballast also being reduced.

Main boom, heavy

Main boom, light

Luffing jib, heavy

Derrick system

Suspended ballast


Fixed jib

Auxiliary jib

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HS

The LG 1750 also offers the new SLK boom

system that provides increased lifting heights

without the need for a derrick system.

SDWB boom system

SLK boom system

SL9D2FB boom system

SL8HS boom system




Technical data LG 1750Max. lifting capacity 750 t


Max. reach 136 m

Carrier enginepower


Crane motor

power


400 kWDrive/steering 16 x 8 x 16






Liebherr-Werk Ehingen GmbH

Subject to modifications. P 358.E06.2005

The Liebherr plant in EhingenThe 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.

Cranes for Wind Power

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