A massive 105m-high free-standing Wolff 6522 SL tower crane has now finished its work building a new landmark office building, the Munich City Tower, which is sure to catch the eye of visitors to Bauma next spring. To speed construction, a Wolff 100B with 40m luffing jib was used on the lower part of the building while the 6522 SL worked overhead on the higher sections, lifting up to 3.3t at the end of its 55m jib. According to MAN Wolffkran, which rented the cranes to contractor Wayss & Freytag, using a massive free-standing crane instead of a smaller one tied into the building saved tens of thousands of euros. The 6522 SL was founded on a 12m by 12m concrete base. Tower sections were 3.3m by 3.3m square at their widest part, 2.5m square for the middle part, and 2m square for the the top 25m or so. The building also stands 105m high, or 125m including the 20m communications tower on top.
