Sennebogen 5500 - Bremer

This sharp Sennebogen 5500 of Bremer from Paderborn (DE), a company that is operating multiple cranes for the erection of their self-produced precast concrete elements. This is a 180-tonne crawler crane that was operated on a construction site near Meckenheim (DE).

Between the tracks is on both sides 13 tonnes of central counterweight installed, in total 26 tonnes.

The undercarriage of the crane is 8.5 meters long and 6.8 meters wide. The tracks must be removed for the transport over the road and are each 8.5 meters long, 1 meters wide and 1.37 meters high. A single track weights 17.4 tonnes.

The crane is powered by a Caterpillar C9 diesel engine with a power of 261 kW (355 hp).

Here was the crane fitted with the full counterweight of 60 tonnes, that exists out of a 12-tonne base plate and ten slabs with each 4.8 tonnes. The counterweight has a 6 meter tailswing.

Bremer is also operating a 200-tonne Liebherr LG 1200.

The cabin is approx. 20 degrees tiltable. For the transport over the road is the cabin swinged inside against the boom foot.

On this construction site was the crane fitted with a 24.3 meter main boom and a 24.3 meter luffing jib, the SHWS-configuration. In this configuration is the crane able to lift maximum 48 tonnes on an 8 meter radius and 12.1 tonnes on a 36 meter radius.

The crane can in this configuration maximum erected with a 52.3 meter main boom and a 52.3 meter luffing jib.

Mounted at the tip of the luffing jib was a runner for usage with a second hook, so that with two hooks long elements can be tilted.

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