Wiesbauer, the crane rental company based in Bietigheim-Bissingen north of Stuttgart, has taken delivery of a Spierings SK487-AT3 City Boy. Vertikal reports it as the first all-electric City Boy to go to a German customer.
The three-axle mobile tower crane can run as a battery-electric machine or as a plug-in hybrid, with a small diesel engine for topping up. Unlike most cranes in the class, it uses electric power for travel as well as lifting.
Specification
According to Spierings, maximum capacity is 7 tonnes out to 11.96 metres, with 1.7 tonnes at the tip of the 40 metre jib. Tower heights of 21, 24, 27 and 30 metres are available, and with the jib luffed to 45 degrees the hook reaches 55.45 metres. In travel order the crane is 13.1 metres long, 2.55 metres wide and 4 metres high, at 36 tonnes all up. The manufacturer quotes a set-up time of about 15 minutes.
Its closest three-axle rival, the Liebherr MK 73-3.1E, is rated at 6 tonnes maximum and 2 tonnes at the tip, with a hook height of 51 metres. It can work from site power, but drives on diesel.
A long road to market
The delivery comes a long way into the City Boy's life. Spierings first announced the concept in 2010; pre-production testing began in late 2017 and the first units reached customers in April 2020. Germany is already one of the Dutch manufacturer's main export markets for its larger models.
Wiesbauer operates All Terrain, truck-mounted, mobile tower and loader cranes for industrial, construction and infrastructure customers in Baden-Württemberg. Battery range and price have not been disclosed.
Source: Vertikal.net