inglês para português Tecn./Engenharia Agricultura Machinery, harvesters, headers

Catalog for harvesters parts/components. According to Kongskilde description, "The rotacrat is placed behind the rear cage roller in order to ensure the correct compaction and finish is achieved". I'd like to know if there's a translation available for Brazilian Portuguese. The sentence I got to translate is:

Double rotacrat roller for 6.9 meters