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Refixing a machine by plating the floor
Posted on Jan 4, 2017 by Zalai-Ruzsics Botond
A machine previously installed by us has resulted to move and break the floor under itself.
The analysis has shown that the flooring originally thought to be solid consists of two layers: an old flooring made of concrete plates laid on sand, and a new, modern concrete layer laid on top of the plates.
During the fixing of the machine the anchors were drilled in 500mm long, thus fixing the machine to the lower concrete plates.
With the vibration and extreme forces of the machine the plates started moving independently, breaking the concrete floor, showing their shapes and the ends.
The definitive solution (to make a new, unique foundation for the machine) is planned for the second semester of 2017, but meanwhile a solution had to be found.
In order to fix together the feet of the machine a 20mm thick steel plate was laid down common to all feet.
The plate then was fixed with M24 x 300 screws to both of the concrete layers, by filling it up with two component chemical concrete glue.
The machine then was levelled, and after running with half load for 72 hours, relevelled and the screws checked for changes.