CONTEXT:

In Minera Escondida, the motors that move the conveyor belt presented different electromechanical problems because, in their original configuration, the repair shops made changes in the models of some components.

As a consequence of this massive failure, a production line was stopped.

PROBLEM:

Due to the repairs made by the different repair shops, each motor had different, non-original models of brush holders, ring assemblies and brush. As they were not standardized, problems of differences in types of materials and qualities were generated.

One of our partners asked us for support to work together with the mine’s maintenance team to find a definitive solution to the serious existing problem.

SOLUTION:

A survey of the problem was carried out in the field and Prodin’s proposal was first of all, to standardize the brush. This was done by granting the original product, Schunk brand which is used by engine manufacturers.

Then, we designed and manufactured a brush holder that was standard to all engines, that is, the designed brush holder works for any existing belt engine.

Finally, and with the recommendation of the Schunk factory, the existing material in the bronze rings was changed to high conductivity steel. 

In this way, Prodin was able to standardize and improve the components of the conveyor belt engines, allowing to return to operation in less than a month.