Port crane LPS 420 E

gantrymobile

The new LPS 420 E is the latest extension of the Liebherr mobile harbour crane product range. The newly designed machine is a purely electric driven portal crane. It is a universal all-rounder and a key asset for handling every type of cargo, from containers to bulk, general cargo and heavy lifts up to 124 t. The forward-looking machine is designed for ports and terminals with an electrical infrastructure. Liebherr frequency converter The LPS 420 E is especially optimised for terminals with a power supply ranging from 380 V to 460 V. Thanks to the Liebherr active-front-end frequency converter deviations in the voltage supply can be compensated easily for safe and stable operation. Due to the critical conditions, like limited space and harsh environmental conditions, a liquid-cooled and highly efficient multi-drive frequency converter system was implemented. The frequency converters are Liebherr built components, which have proven themselves in Liebherr ship-to-shore gantry cranes and material handlers. Energy storage unit LiDURO Energy storage unit LiDURO Energy storage units As an additional benefit, high power energy storage units can be used to reduce the peak-load in the crane main power supply and to take advantage of regenerative energy within the system. The compact unit ensures a high power storage capacity, which enables the accumulation and supply of 200 kW of power within 15 seconds.