High-performance card C 81
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Fiber preparation Card C 81 Maximum use of carding area enabled by artificial intelligence

C 81 The maximum technological carding area is the basis for an increase in production of up to 40%.

Up to 40% More Sliver – The Most Productive Card

Unmatched Sliver Quality 4

Excellent sliver quality is achieved by the 40 active flats and a perfectly controlled carding gap under all conditions by Carding Gap Control.

The innovative technological cross section combined with the flat clothing HYPERTOP and Trash Level Monitor increase the fiber yield by up to 2%. 7

Up to 2% Higher Yield Innovative technological cross section combined with the flat clothing HYPERTOP and Trash Level Monitor Up to 40% More Sliver Maximum technological carding area as the basis for increased production Low Energy Consumption High production with fewer cards, energy-efficient drives and innovative machine components Suitable for All Applications Special machine solutions for recycling and man-made fiber processing

Unmatched Sliver Quality Thanks to Unique Technologies Permanent monitoring with Carding Gap Control and Trash Level Monitor, premium Graf wires and Integrated Grinding System (IGS) Easy Maintenance and Flexible Operation Modular construction, folding doors for quick access, Q-Packages and an easy removable central suction system The Best-in-Class Process Shortening Draw frame module RSB-Module 55 with unique technology 9

Productive and Intelligent Up to 40% more production Latest carding technology for highest production The card C 81 takes a leap forward in terms of high production and excellent sliver quality. This is made possible by the new intelligent feature Carding Gap Control which constantly ensures the ideal carding gap for unmatched sliver quality. With Trash Level Monitor, further intelligent sensors are used to monitor the material quality at the card infeed and after sliver formation. Each of these features contributes to up to 40% higher production than with any other high-performance card....

Unmatched Sliver Quality Unique technologies for excellent carding results Carding Gap Control (CGC)* The high-performance card C 81 is an innovation in terms of carding technology. The carding gap determines the carding quality. The narrower the gap, the better the nep reduction. The outstanding innovation Carding Gap Control uses the latest sensor technology to regulate the distance between flat and cylinder – with an accuracy of a few hundredths of a millimeter. This leads to an unmatched sliver quality. Benefits of Carding Gap Control (CGC) Comparisons with and without CGC have shown: •...

Trash Level Monitor (TLM)* Trash Level Monitor makes it possible to predict sliver quality within a defined range. Artificial intelligence is used to measure whether the trash particles in the card infeed and in the produced sliver is within the defined limit. If the limit is exceeded, this is displayed on the operating panel and recorded in ESSENTIALmonitor, Rieter’s all-in-one mill management system, so that appropriate quality assurance measures can be initiated. Thus, the quality with respect to the trash level is always under control thanks to Trash Level Monitor. Premium Graf card...

Integrated Grinding System (IGS) The continuous wear of the card clothing becomes more important for highly productive cards. The Integrated Grinding System (IGS) – exclusive to Rieter – solves this problem right from the start by keeping the clothing permanently sharp. IGS-classic With IGS-classic, a grinding stone is automatically moved across the cylinder clothing during production. This operation is performed 400 times over the expected service life of the clothing. Spread over the service life of the cylinder clothing, the programming of the grinding schedule calculates the optimal...

Up to 2% Higher Yield Technological cross section builds the foundation Artificial intelligence improves raw material yield Trash Level Monitor continuously monitors the trash content of the fiber tufts in the card infeed and the card sliver produced. By doing so, the spinning mill can maximize its raw material yield. The core of this function is optical image processing with a neural network developed by Rieter. The data come from sensors in the card infeed and at the can coiler. Artificial intelligence is used to measure whether the trash particles in the card infeed and in the produced...

HYPERTOP from Graf* The card clothing HYPERTOP from premium wire supplier Graf is available for the new generation of Rieter cards. Investigations show that HYPERTOP wires contribute to an improvement in fiber yield by up to 0.5%. A strong wire and optimal teeth shape result in a constant high quality over an extended lifetime. The multi-zone setting pattern ensures optimal and gentle defibering. The progression from straight gaps to a gapless pattern processes the fibers with growing intensity, delivering the yield improvement. The new setting pattern favors the removal of short fibers and...

Potential for savings with selective trash extraction With selective trash extraction, both raw material utilization and product quality expectations can be optimized. The material utilization offered by the C 81 is up to 2% better than other modern high-performance cards. This increased utilization creates a significant cost benefit. Profit in USD depends on where the cotton is sourced from Basis for calculation: Card line with a sliver output of 900 kg/h at 8 400 operating hours 400 000 350 000 The card C 81 features three elements that enable optimal material utilization and flexible...

Low Energy Consumption Supported by energy-efficient drives High production supports low energy costs Comparison of energy consumption between C 81 and competitor Example cotton ring carded/combed yarn Ne 30, 900 kg/h total card production Some of the most important energy-efficient features are: • Design of suction system which allows a low suction pressure • Machine design that prevents heat generation which in turn reduces AC-cycles • Innovations in the flats area with a precisely controlled carding gap -17% energy vs. latest 1.28-m competitor model The card C 81 produces up to 40% more...