Spotlight Feature Articles ME Elecmetal Comminution March 16 | Page 6

COMMINUTION
machines are now available at significantly lower
prices and with shorter delivery times, the
company reports.
With a roll length of 3 m and shaft centre
distance of 660 mm, the RollSizer DRS 660X3000
S, for instance, is the second largest member of
the family of secondary and tertiary RollSizers
from thyssenkrupp.
The model, which will be exhibited during
Bauma 2016, is designed as a SideSizer. Its rolls
rotate outwards in opposite directions and
crushing takes place between the rolls and the
end walls of the housing. This is key to the
crusher's extremely high throughput rates, the
manufacturer says, as well as a clearly defined
final product, and very compact design.
Like all secondary and tertiary crushers from
the thyssenkrupp RollSizer range, it is equipped
with exchangeable crusher
segments made of
wear-resistant
steel

For maximum
operating safety,
all thyssenkrupp
RollSizers are fitted with
sensors to monitor main
machine parameters such as drive
speed, bearing temperature and
lubrication
which are durable and also quick and easy to
replace. In addition, all sections of the housing
that come into contact with the material during
crushing are lined with wear plates. This
maximises the service life of the overall machine
and minimises maintenance.
The crushing combs arranged laterally on the
end walls are available in various designs. Both
the crushing combs and the end wall plating are
horizontally adjustable so that the product
particle size can be precisely adjusted in line with
requirements.
The DRS 660X3000 S operates with an
extremely robust direct drive system consisting
of two spur gears with fluid couplings. The
couplings allow start-up of the sizer even under
the load of a full crushing chamber and at the
same time provide overload protection. In the
presence of a foreign body, the slip of the fluid
couplings protects the machine against damage.
The required drive torque is provided by two
powerful 250 kW electric motors.
Tenova TAKRAF is a new player in the sizer

International Mining | MARCH 2016

market. Well known as a supplier of equipment
and systems for open pit mining and bulk
handling, TAKRAF’s product portfolio has been
enhanced with the addition of sizer equipment,
which now enables the company to integrate its
own crushing machines into complete mining
solutions for its clients.
The range offers standardised primary a