link no. 59 customer magazine spun yarn systems - Rieter

14 LINK 59 . 1 /2012
PRODUCT NEWS
New R 60 Rotor Spinning Machine
– Technological Progress
The innovative spinning technology of the new automatic R 60 rotor
spinning machine from Rieter ensures better, more uniform and softer
yarns. The R 60 sets new standards for speed, low energy consumption
and high efficiency. At the ITMA 2011 in Barcelona, our customers clearly
recognized how easy, operationally reliable and clearly designed this
rotor spinning machine is compared to other machines.
Fig. 1 The new S 60
spinning box has been
technologically further
developed. The open
construction is advantageous
for cool delivery
nozzles, productivity
and operation.
High yarn quality is the basis for the success of
a spinning plant
The new S 60 spinning box of the R 60 features all
the proven advantages of its predecessor the SC-R
version and has been further improved.
Noticeable is the absence of a delivery tube. The new
TWISTunit of the R 60 unites delivery nozzle, TWISTstop
and channel insert in one construction. The unit and
its elements are very easy and quick to replace, even
without tools.
The new construction prevents fiber accumulations or
spinning vacuum from changing the spinning conditions.
The box no longer has any covers under which
fibers can accumulate. The optimized spinning geometry
reduces the spinning tension and improves the
spinning stability. This can clearly be seen with critical
applications such as soft-turned yarns or with the
increased use of short fibers such as comber noil, card
and blowroom waste. Thanks to the “cool nozzle technology”
heat dissipation to the nozzle is good which
leads to a cooler surface. This provides further potential
for higher productivity with synthetic fibers and
their blends.
New spinning technology for superior yarns and
lower energy consumption
Several customers could already experience the
technological benefits of the new spinning box in the
form of better yarn strength and evenness. In direct
comparison to the latest competitor models, the innovative
spinning technology of the R 60 is already
a step ahead by up to 0.75 cN/tex and by 20 % higher
IPI values. In the example shown (Fig. 2) – Ne 17
weaving yarn of 100 % cotton – this advantage in
strength can be transformed into a productivity increase
of 9 %. The originally required yarn strength
can be achieved by a constant rotor speed with appropriately
lower twist. This additionally results in a
further reduction of the energy consumption per kg
of yarn to an equivalent of 9 %.
Savings with raw material
Again the further developed Rieter spinning technology
proves its strength, particularly with a high proportion
of short fibers or with a high trash content in
the feed sliver. The adjustable bypass, the reduced
spinning tension and the new automatic, individual
centering of the exit nozzle and rotor improve the
spinning stability. The mechanical rotor cleaning by
the robot with the unique VARIOclean is effective
with every piecing and doffing cycle. This ensures
that the spinning position subsequently continues
production at the highest quality level with thoroughly
cleaned rotor grooves.