May/June 2022 - 124

Liebherr Introduces the
LR 1160.1 unplugged
Liebherr-Werk Nenzing introduced the LR 1160.1
unplugged, one of the world's first battery-operated crawler
cranes. The electro-hydraulic drive has the same
performance specifications as the conventional version.
Both versions are operated in the same way, which is
especially convenient for machine operators if they often
have to switch between machines.
One exceptional feature of the unplugged machines is
Zero Emission - they do not produce any emissions and are
extremely quiet. In idling mode, the sound pressure level of
three unplugged cranes, at a distance of 16 m (14.8 ft), is
equivalent to that of a normal conversation on the jobsite at a
distance of 1 m. This corresponds to a value of only 60 dB(A).
The LR 1160.1 unplugged can be operated with or without
cable, therefore: unplugged. Capacity of the battery is
designed for 8 hours of lifting operation. The crane can be
operated without restrictions while plugged into a
conventional electric supply with 63 A or charged within 4.5
hours. Using a 125 A supply, the battery can be fast charged in
only 2.5 hours.
Like every crawler crane from Liebherr-Werk Nenzing,
the LR 1160.1 unplugged is equipped with all established
assistant systems for safe operation.
The latest feature of the LR 1160.1 unplugged is the
Carbon Calculator
Webinar
In June, the Sustainability Committee
is reintroducing the EFFC-DFI
Carbon Calculator with a 1-hour
webinar presented by Chair Gerald
Verbeek and Kimberly Martin,
Ph.D., P.E., senior engineer of innovation
and sustainability at Keller.
The webinar demonstrates how to
use this free tool to determine the
carbon footprint for your geotechnical
solutions. There is no cost to
attend.
Mark your calendar for June 28 at 11 a.m. ET and
sign up at www.dfi.org.
124 * DEEP FOUNDATIONS * MAY/JUNE 2022
Gradient Travel Aid for the safe negotiation of slopes and
inclines. The crane's control system automatically calculates
the centre of gravity and warns the operator before the crane
leaves the safe area. While travelling, the operator receives
information about the permissible and actual gradient, and
the crane's overall centre of gravity at all times. If necessary,
the boom angle can be altered so that the machine remains in
the safe area.
The Ground Pressure Visualization calculates the actual
ground pressure of the machine in real time and compares it
with the specified safety limits of the relevant jobsite. This
means the operator is permanently aware of whether the
machine is situated in, or is approaching, a critical area.
When erecting or lowering the boom, the Boom Up-andDown
Assistant indicates the approach to the tipping border
and automatically stops operation before the operator
unintentionally enters an unsafe zone.
Liebherr-Werk Nenzing delivered the first three LR 1160.1
unplugged cranes to Select Plant Hire Company in Great
Britain.
http://www.dfi.org
May/June 2022

Table of Contents for the Digital Edition of May/June 2022
