Setup of machine tools on upper floors

A Gildemeister lathe CTX410 was to be reinstalled in a production building on a ceiling (1st floor) with a very vibration-sensitive fine processing operation (gears for watches etc.). The bearing ceiling structure consists of steel girders, on which a relatively thin concrete-floor is located.

During the operation of the Gildemeister lathe impact-like vibrations would have occurred, which would have been transmitted over the floor of the ceiling to the fine processing and which would have disturbed it.

Data:
Total mass of the machine approx. 6,000kg
Natural frequency of the ceiling ƒ0z = 10 Hz

Based upon the results of a vibration measurement run on-site by isoloc measurement engineers the lathe was installed with the specially laid out isoloc Machine Bearing Systems on that floor.

Solution:

Machine Bearing System type B8
Horizontal supports type HOAW 3 with UMSD35-ASF/IPK68

Natural frequency of the system ƒ0v approx. 5-7 Hz
Natural frequency of the system ƒ0h approx. 1-3 Hz
Static deflection approx. 20-25mm

Result:

The elastic bearing lead to a very good vibration insulation (source insulation) which reduced the annoying vibrations significantly. The production is not disturbed by the operation of the Gildemeister machine.

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image: CTX410 elastically mounted
image: fine production
image: size comparison of the produced gear wheels
Any Questions?