Wrecking ball

A wrecking ball, also steel mass, wrecking ball, iron bag, baffle ball, demolition ball, or debris pear is a tool for demolition of buildings.

A wrecking ball consists of a pear-shaped or spherical piece of steel with a mass of 500 kg to 8000 kg. It is hung on a rope excavator and placed for commuting by a rotational movement of the excavator (see video). By the pendulum movement it absorbs kinetic energy. Exceeds the wrecking ball to the wall torn off, it will be overloaded and breaks. The method works well for masonry; with thick reinforced concrete, as it was especially built in the 1960s and 1970s, it is of limited use. This is due to the high ( train ) strength of reinforced concrete.