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Rutherford Sales & Equipment

Rutherford Sales & Equipment



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Rutherford Sales & Equipment

North Bay On, Canada


Tel:  705 497-9830

Fax: 705 497-9833


[email protected]

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Finer liberation sizes together with decreasing ore grades pose challenges to grinding and especially fine grinding technology. Fine grinding is one of the most energy-intensive processes within the minerals industry. Increasing energy prices are forcing mill operators to decrease their operational expenditures. This rough environment triggered the development of an optimised fine grinding mill which meets the toughest targets in terms of energy efficiency, lifetime, downtimes and maintenance costs.


The CEMTEC Attrition Mill (CATT mill®) was developed to maximise the energy transfer from the machine to the material. Discrete element simulations (DEM), which were confirmed by semi-industrial test trials, paved the way to an optimised design of the rotating stirrer and counter discs / pins.


The CEMTEC Attrition Mill has a vertical orientation and is intended for wet processes. The mill body consists of a shell equipped with internals (counter discs/pins) and an agitator shaft of varying geometries (discs, pins) chosen to match the customer’s specific needs. Feed slurry is pumped from the bottom and leaves the mill by means of overflow at the top, which is exposed to the atmosphere. A classification stage with hydro cyclones may be used before or after the grinding process to reach the final product quality.


Mill sizes up to 1,500 kW are available.

Cemtec Attritors CEMTEC Attrition Mill Brochure cemteclogo