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New Rieter C 70 achieves high quality production performance
May '11
With the C 70, Rieter has succeeded in raising the dependable technology of the 1.5 m wide card to a new level. Basis for the improvement in production and quality is the enlarged active carding area in combination with the precisely controllable carding gap.

Optimized extraction elements in the pre- and post-carding area lead to a high raw material utilization. This raw material utilization and the lower energy consumption per kilogram of card sliver contribute to the efficient production of superior quality yarn.

Enormous leap in productivity

The production performance of the C 70 card, compared to that of the C 60, can be increased by up to 40% with equal or better sliver quality. This marked improvement is achieved by redistributing the carding zones in the flats area and by redesigned flats guiding.

Key factor, carding area

With the C 70, 32 flats are operative. Compared to the C 60, the active flats area is increased by 45% and compared to a conventional card by 60%. This means that with each cylinder clothing of the C 70, distinctly more carding work is performed.

Quality through precise carding gap

The precise flats guiding and the revised flats design permit a very exact and reproducible setting of the distance between the cylinder clothing and the flats, so that a minimum of 0.1mm is possible. This precision leads to improved carding results. Furthermore, the flats cleaning of the C 70 has been completely reorganized.

Optimal raw material exploitation

The customer profits from an optimal fiber utilization thanks to the extraction knife in the pre- and post-carding area. The extraction knife with variable ejector distance can be exchanged without tools in the shortest possible time.

The flats speed is infinitely adjustable via the frequency converter, independent of the cylinder speed. This means the card can be individually adjusted and thereby optimized to the type of raw material being processed.

Uniform sliver quality

The proven integrated cylinder grinding system IGS – an exclusive Rieter product – is available as an option and provides the customer with constant quality values during the whole lifespan of the card clothing. With this fully-automatic grinding system, downtimes for clothing maintenance are a thing of the past.

Low energy consumption

The high production performance of the C 70 positively affects the energy consumption per kilogram of produced card sliver. The C 70 has a 15% lower energy requirement than that of the C 60 which, considering the globally rising prices of electricity, represents a principal factor in the economic production of yarn.

Rieter Management AG

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