Rieter Combing – Technologically at the
Schwartz, Head Product Management Combing.
Head Product Management Combing, Rieter AG.
The new combing set achieves the greatest productivity
worldwide. The technology advantage of Rieter combing is based
on the optimal interaction between machine and technology
Confirmation of this strength, not only in the laboratory but
especially under real production conditions with different
cotton types, is Rieter’s guarantee for the customers success.
The technological, qualitative and economical benefits are
illustrated as follows.
E 36 OMEGAlap – the most economical
Thanks to continuous advancements, the OMEGAlap concept could
be improved. An increase in production of 20% to over 600 kg/h
at a constant speed of up to 230 m/min is the result.
With this production rate, the OMEGAlap is far superior to
conventional machines. The influence of the OMEGAlap on the
economic performance of a combing section is enormous. The high
production allows a reduction in the number of preparatory
machines. This noticeably reduces the number of can changes and
sliver piecings. Fewer personnel are needed in this context.
As an example, the personnel requirement of a combing set in
a compact spinning facility with 76,000 spindles was calculated.
Compared to other machine manufacturers, the personnel
requirement can be reduced by 3 persons. This is realised by the
efficient combing preparation, the SERVOlap fully automated lap
transport system and the comber including the ROBOlap automated
lap changing and piecing system (Figs. 1 and 2). The personnel
saving for the combing preparation machine can be up to 20%.
That reduces the manufacturing costs by approx. USD 190,000 per
year (basis Turkey).
E 86 Comber – for better combing
The new E 86 comber features a speed increase of 10% compared
to the previous model. In the short and medium staple ranges,
combing can be made with 550 nips per minute, and that without
compromises in the combing quality. In practice, a Rieter
combing set (1 + 6) supplies a plant with approx. 25,000 compact
Higher level of cleaning for better
The strength of the E 86 comber lies in a high level of
cleaning as well as excellent running performance with high nip
The E 86 achieves fewer imperfections in the yarn (thin
places, thick places, neps) at the same noil removal level
compared to combers from other manufacturers. The high degree of
cleaning has no effects on the fibre quality. That means, the
fibre length remains unchanged and thus the yarn tenacity at a
high level (Fig. 3).
Fig. 3: The E 86 comber with higher level of cleaning:
fewer imperfections without affecting the fibre length and
the yarn strength.
Figure 4: The E 86 with higher cleaning level: fewer trash
particles without fibre damage.
Furthermore, the E 86 attains an improved dust and trash
elimination of up to 20%. The short fibre content, the hairiness
as well as the evenness in the yarn remain unchanged (Fig.
That means, that in both examples, a higher cleaning effect
is achieved by means of stronger combing intensity without
compromises in the combing quality.
A further example from Southeast Asia shows better yarn
quality with the E 86 compared to another manufacturer. At the
same production performance and the same noil removal, the
imperfections are lower by 40% (Fig.5).
The raw material is a considerable cost factor in the
spinning mill. With the E 86 noil removal can be reduced by up
to 1% at equally good yarn quality (Fig. 6). That generates cost
savings of up to USD 55,000 annually (example Central Asia).
The production performance also positively affects the costs
of the spinning mill. The E 86 has the potential to achieve a
10% higher production in comparison to the previous model, at
the same noil removal and yarn quality (Fig. 7). That
corresponds to a saving in manufacturing costs of about USD
20,000 per year and combing set (basis Turkey).
The right technologies for an
efficient combing set
The E 86 comber with its high production at simultaneously
high quality leads the way in combing. Individual quality
demands can be realised thanks to high-value technology
components. The established, fully-automated ROBOlap lap
changing and piecing system is the standard for a modern combing
facility. Together with the unique OMEGAlap preparation, the
highest production per set on the market is achieved.