· LR 1700-1.0 is the successor to the LR 1600/2 and in the medium term will also
replace the LR 1750/2
· New Liebherr 700 tonne crawler crane sets new standards in the class between 600
and 750 tonnes
· LR 1700-1.0 delivers innovations from Liebherr’s most recent crawler crane
developments
After 12 years and over 200 units produced, Liebherr’s successful LR 1600/2 crawler
crane now has a successor – the design of the LR 1700-1.0 with a maximum lifting
capacity of 700 tonnes is based on its 600 tonne predecessor and features similar
dimensions. In many respects, the new crane even exceeds the performance of the
LR 1750/2. The first models of the new crane will be delivered around mid-2021,
around the same time as the final LR 1600/2 units will be delivered. As deliveries of the
LR 1750/2 will also cease after almost 20 years of production, the powerful LR 1700-1.0
will also assume its position below the 800 tonne LR 1800-1.0.
Ehingen / Donau (German), 15 February 2021 – The new LR 1700-1.0 from Liebherr
combines the benefits of economical transport of 600 tonne class crawler cranes with the
performance of 750 tonne class lattice boom cranes and also features all the innovations of
Liebherr’s crawler crane developments from the last few years.
Great mobility and compact dimensions
Liebherr has completely redesigned the base machine for the new LR 1700-1.0 based on the
dimensions of the LR 1600/2. Its track width is slightly larger than its predecessor at 8.7
metres whilst the length of the crawler carriers has grown to 11.35 metres. The LR 1700-1.0
is available with Quick Connection as an option. This means that the transport weight of the
slewing platform (without the SA frame and winches) can be reduced to around 42 tonnes,
well below the limit of 45 tonnes to ensure low cost heavy haulage. The same applies to the
crawler carriers which, with their 2 metre crawler pads and 4-fold drive, weigh in at just 43
tonnes. This guarantees that the new 700 tonne crane can be transported at low cost
The width of the various components is another important criterion for economic mobility.
Here too, the LR 1700-1.0 produces a top performance – all the transport units for the base
machine, including the pivot section, are no more than three metres in width. Only the
powerful H lattice sections on the main boom are wider than this at 3.5 metres. However,
these can be used to transport the smaller sections to reduce the number of transport
vehicles required. For customers in countries where transport widths of over three metres are
not possible, Liebherr can also supply the boom for the LR 1700-1.0 exclusively with three
metre wide lattice sections.
Another low cost feature for operators of the LR 1600/2 is that a large number of equipment
components from the predecessor crane can also be used for the new LR 1700-1.0. These
include the S sections for the main boom, the luffing jib, the 600 t head, several winches,
hook blocks, ballast slabs and the runner.
High performance for industry and wind power jobs
The basis of the high performance of the new 700 tonne crane is the new base machine,
which delivers between 10 and 15 percent more lifting capacity. Furthermore, the 3.5 metre
H lattice sections at the bottom of the main boom significantly improve the lateral stability of
the entire system.
This means that the new LR 1700-1.0 becomes the new benchmark in the 600 to 750 tonne
class for lattice boom cranes both for classic industry work and also for wind power. The
boom can be raised to a height of up to 198 metres, comprising the main boom at 102
metres and a luffing jib at 96 metres. These lattice sections enable the crane to be used in
purely main boom mode with a length of up to 162 metres.
For erecting wind turbines, the LR 1700-1.0 can achieve a maximum main boom length of
165 metres using additional H sections. A fixed jib of up to 15 metres in length can be
attached to this. The lifting capacities of the new crane in this area are on a par with the LR
1750/2 with SX system.
Minimal wear is becoming more and more important for moving the crawler travel gear,
particularly during jobs at wind farms. The Liebherr engineers have therefore made the
structural steelwork for the crawler carriers particularly robust and increased the size of the
rollers. The 4-fold drive for the travel gear is standard.
A Liebherr six cylinder diesel engine which develops 400 kW / 544 bhp is used to power the
LR 1700-1.0. The engine satisfies the new stage V emissions directive and can also beconfigured to comply with the regulations which apply in countries outside of Europe, for
example Tier 4 for the USA or stage IIIA for low regulated countries.
The very latest derrick system with modular ballast trailer
The V-frame and VarioTray have more than proven their worth on the LR 1800-1.0 and
LR 11000 crawler cranes. These innovative systems have therefore also been used on the
LR 1700-1.0. VarioTray is a small ballast pallet, which can be unbolted quickly and easily
when necessary. This avoids the need for the tiresome stacking and unstacking of ballast
slabs.
The V-frame ballast system is a hydraulically adjustable folding frame which enables the
ballast radius of the LR 1700-1.0 to be infinitely adjusted between 13 and 21 metres. A rigid
ballast guide system is therefore no longer required for large radii.
Liebherr has another innovation when it comes to ballast trailers – the new modular “MWagon”
ballast trailer is not only suitable for use with the LR 1700-1.0, but also with the
LR 1800-1.0 and LR 11000 crawler cranes. Since ballast trailers are generally used quite
rarely, this paves the way for significant savings. The LICCON2 control system takes charge
of the sensitive control for circling, towing and parallel movements. It also delivers extended
set-up facilities and monitored erection for the LR 1700-1.0.
About Liebherr-Werk Ehingen GmbH
Liebherr-Werk Ehingen GmbH is a leading manufacturer of mobile and crawler cranes. Its range of mobile cranes
Source:
Contact person
Wolfgang Beringer
Marketing and Communication
Phone: +49 7391 / 502 – 3663
Email: [email protected]
