Dutch crane rental company Kuiphuis Kraanverhuur has ordered two more Spierings ‘e-Lift’ electric/hybrid self-erecting mobile tower cranes – a four-axle SK597-AT4 and a six-axle SK1265-AT6.
The eLift system allows the crane to plug into a 16 or 32 Amp mains outlet with the power passing through a Lithium-ion battery ‘PowerPack’ which absorbs the peaks in energy draw down allowing a connection to a regular outlet without affecting performance. When the power draw is low the battery pack is recharged. The crane is also equipped with a small diesel which can generate the electrical power when a mains outlet is not available.
The SK597-AT4 eLift is the latest generation of the Spierings tower crane with a maximum capacity of seven tonnes, a 48-metre jib and a more compact chassis. The maximum lifting height is 58.1 metres with the jib luffed to 45 degrees, or 27.8 metres with the jib in the horizontal position. This will be the fifth four-axle Spierings in the company fleet.
The SK1265-AT6 eLift has a 10-tonne maximum capacity which it can handle at a radius of more than 13 metres. Its 60-metre jib has a 1,700kg jib tip capacity at a 35-metre horizontal jib height. The maximum lift height is 64.2 metres with jib luffed to 30 degrees.
The new cranes are due to be delivered in January. The order was almost certainly the last order for Spierings’ Maarten van Brink who is leaving Spierings this week after more than three years as a sales engineer for the Netherlands and the UK. He is moving to emission and lubrications systems manufacturer GITS Automotiv.