Difference between revisions of "Rotary Crushers"

A '''rotary Crusher''' is a term often used for [[Roll Crushers|Roll Crusher]] are compression type crushers, and were once widely used in  mining.  They have, within the last 10 or so years, fallen into  dis-favor among mining and processing companies.  The probable reason is  because the large mines require very large crushed product output with  minimal cost, makes the roll crusher uncompetitive.  The roll crushers  are not as productive as cone crushers, with respect to volume,  and they do have a little higher maintenance associated with them.  Roll crushers do, however, give a very close product size distribution, and  if the ore  is not too abrasive, they do not have high maintenance costs.     

Through the feed opening, the  raw materials fall to between the two rollers, after crushed, the final  products drop naturally. When there are unbreakable materials or the  material is too hard, the roller will concede automatically under the  effects of spring and hydraulic pressure, which will widen the clearance  between the rollers and make the hard or unbreakable so as to avoid  damaging the machine. The clearance between the two rollers can be  adjusted to change the sizes of final products.

* up to a minimum particle size of 2mm

* maximum reduction ratio of 4:1

* produces very little dust or fines

* stable operation