01.09.2026

First Spierings for Streule + Alder

Swiss construction company Streule + Alder has taken delivery of its first Spiering’s crane, an SK487-AT3 City Boy self-erecting mobile tower crane.

The SK487-AT3 can be operated as a full battery electric machine and used as a plug-in hybrid model with a small, low emission diesel engine for topping up the battery pack. It has a maximum capacity of seven tonnes - which it can take to a radius of just under 12 metres - and can handle 1,700kg at its maximum radius of 40 metres. Four tower heights of 21, 24, 27 and 30 metres are available, while the jib luffs to 15, 30 or 45 degrees for a maximum lift height of more than 55 metres. Total weight is 36 tonnes and it has overall stowed dimensions of 13.1 metres long, 2.5 metres wide and four metres high.

Based in Rorschach, northern Switzerland, and founded in 1993, Streule + Alder specialises in roofing and façade work.