Liebherr LHM 420 - Manual (Page 6)

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Structure Overview
Liebherr mobile harbour cranes use the most advanced design,
engineering and production technology and consist of the follow-
ing main constructional groups:
Closed tower design
(with weatherproof access to tower cab)
Tower extension 4.8 m
(for higher boom fulcrum point
and cabin height, optional)
PACTRONIC ®
(hybrid drive system)
Undercarriage
(with integrated diesel tank
and additional access in
middle section)
Optimized boom lengths
(for practical applications)
Tension luffing cylinder
(for more safety during operation)
Winches
(application-oriented
configurations)
Motorisation
(diesel engines with different ratings
depending on purpose and crane size)
Slewing Platform
(GFRP = Glass-Fibre
Reinforced Plastic)