Ball Mills

Ball Mills are used in the field of size reduction. Slow rotational speed combined with simple and robust construction make them ideal for grinding hard and abrasive materials where continuity of service, low maintenance and minimum down time are a necessity.

SEPCON is able to offer a wide range of Ball Mill units in a variety of forms, these are:

Open Circuit Grinding System

Close Circuit Grinding System

Air Swept Milling System

Open Circuit System:

Application to continuous operation

Finished product is obtained from a single pass through the mill

Air Swept Milling System

Typically produces a wide particle size distribution with a high proportion of super fines in the product

Require careful selection of length/ diameter ratio of the mill and diaphragm design to ensure correct residence time and product fineness

Close Circuit System:

Application to continuous operation

Mill product is fed to a classifier controlling final product size

Oversize material is returned from classifier to mill for further reduction

Capable of achieving top size products of the order of 10 microns or finer with appropriate Classifier

Typically produces a narrower particle size distribution than open circuit with accurate control of maximum particle size

Minimizes over Grinding, resulting in improved milling efficiency, lower specific power consumption and smaller mill for given capacity

Air Swept System

Applicable to dry closed-circuit milling only

Operates with an airflow passing through the mill providing elementary pre-classification

Capable of providing top size products of the order of 50 microns or finer

Typically produces narrow particle size distribution with relatively high values

Enables limited drying of material to be accommodateds

Ball Mills

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