Contractors World International Vol 5 No 5
• Improved performance - increased lifting
• Trolley and load hook remain on the jib
for transport - no assembly work
• Improved erection of the compact head
Liebherr has updated its successful 160 EC-B Flat-
Top crane and unveiled its successor, the 172 EC-B
8 Litronic. The crane’s lifting capacity has been in-
creased and the crane’s erection process has been
simplified even further.
The redesign of the new 172 EC-B 8 Litronic Flat-Top
crane has resulted in a major increase in performance in
terms of its lifting capacity. Its lifting capacity has in fact
been increased by 15% over the full length of the jib.
The new Flat-Top crane will now hoist 2,100 kg at the
jib head with a radius of 60.0m and offers a maximum ca-
pacity of eight tonnes. This represents an increase of 250
kg at the jib head over its predecessor.
The modular concept and the compatibility of the
tower systems ensure that the crane is suitable for a wide
range of uses. With the Liebherr 120 HC, 170 HC or 256 HC
tower systems, free-standing hook heights of up to 71.4m
can be achieved.
New Erection Concept
Another new feature of the 172 EC-B is the new erec-
tion concept for the jib. The load hook and trolley
remain on the jib pivot section during transport.
That completely eliminates the erection work for the
The hoist and trolley travelling ropes can also be
reeved easily with little effort providing massive benefits
particularly for jib erection in the air.
board platform allow the compact head to be split quick-
ly to reduce the erection weights. Also, the quick-release
electrical connections ensure that the switchboard and cab
can be connected quickly without any errors.
The Liebherr 37kW frequency converter hoist gear is in-
cluded in the basic version and allows empty hook speeds
of 135m/min. A 45kW frequency converter hoist gear is
also available as an option.
The frequency converter hoist gear is only used in 2-line
mode. Hook heights of up to 328m and empty hook speeds
of up to a maximum of 177m/min ensure that the crane is
economical to use.
Advanced Litronic Controller
The new 172 EC-B 8 Litronic is supplied with an ad-
vanced Litronic crane controller. Functions such as
redundant load moment measurement, manipula-
tion-proof commissioning and the monitoring of hoist
gear brake with managed lowering in emergency
mode provide a very high level of safety.
Settings such as slewing gear modes and the trolley
speed can be adjusted quickly and easily using the elec-
tronic monitor system (EMS). In crane mode, the increased
sensor resolution of the new Litronic crane controller sys-
tem also provides improved operating properties.
•Liebherr-Werk Biberach GmbH
New 172 EC-B 8
What’s New In Plant & Equipment