For crude and fine breaking rubber black and
waste collection. 1. Being made of cold hard alloy castiron,
the roll wears well. The rolls have 3 types: double-channeled
roll, single-channeled roll and double-smooth roll. 2. The
safety shut-down in manual operation is set, with the function
of automatic or crawl back swig the roll. 3. Convenient range
adjustment is set in manually operation. The whole machine
adopts hannel bottom head for convenient carrying and
maintenance.