C 70 card_machine_brochure_2810-v2_en_original__79023 2

C 70

Fibre PreparationC 70 High-Performance Card

C 70 High-Performance Card

ADVANTAGES

OUTSTANDING FEATURES

TECHNICAL DATA

THE COMFORT OF COMPETENCEThe card with the maximum

active carding area

C 70

The combination of 1.5 m working width, largest active carding area and precision of the carding gap is the foundation for high production and the quality of the yarn produced.

No other produces more ................... 02

Excellent raw material utilisation .... 04

Consistent sliver quality .................... 06

Outstanding features ......................... 08

No other produces more ................... 10

Optimal raw material utilisation ...... 11

Unique integrated grinding

system IGS.......................................... 14

The recipe for low energy consumption is found in the machine design ......... 16

Modular design .................................. 18

AEROfeed ........................................... 19

Sophisticated solutions from card feed to delivery .......................... 20

From the batt to the sliver................. 21

Process shortening by process integration ............................ 22

C 70 card for all applications ........... 24

TECHNICAL DATAMachine data ...................................... 26

The Comfort of Competence ............. 30

ADVANTAGES


THE COMFORT OF COMPETENCE

3

No OtherProduces More

4

Excellent Raw Material Utilisation

5

Selective trash removal thanks to the adjustable knife on the licker-in, inserts on the Q-package and varying fl at speeds optimise raw material utilisation.

6

The unique IGS system guarantees consistent sliver quality during the lifetime of the clothings. In practice, this increases the service life by up to 20 %.

7

C 70

Consistent Sliver Quality

8

Short DowntimesQuick adjustment to raw materials due to modular design

Sophisticated Solutions from Start to FinishIntervention-free machine operation due to absolutely uniform batt weight and web formation

AEROfeedSupplies up to 10 cards in one line with 1 200 kg/h line production

Excellent Raw Material UtilisationSelective trash removal in the carding process

Largest Active Carding AreaMaximal production is derived from the largest active carding area

Consistent Sliver QualityIGS – ensures perma-nently sharp cloth-ings and increases the clothing service life

9

Energy-savingCompact design with small moveable masses

Process ShorteningQuicker material throughput with draw frame modules

Everything under ControlHigh production and sliver quality with the reliable levelling of the card and con-trolled fi bre guidance


10

Rieter . C 70 High-Performance Card

No Other Produces MoreThe combination – largest active carding area and precise carding gap – is the reason

Decisive for the yarn quality on the cards is the number of the card flats in contact across the working width. The C 70 with 32 flats in working position and 1.5 m work-ing width has the largest active carding area and thereby differs significantly from other card models.

The active carding index (ACI) is a parameter for the ef-fective carding area – the number of flats that engage is multiplied with the card working width. Based on the ta-ble, various card models are listed in the ACI and explain logically why the C 70 performs such good carding work.

Active carding area

1 m = 100 %1.28 m = 128 %

C 70: 1.5 m = 171 %

Key factor carding area

C 70 card 1.50 m 1.00 m 1.28 m

Number of flats 99 84 84

Flats in operating posi-tion

32 28 28

Working width [m] 1.50 1.00 1.28

ACI 48 28 35.8

C 70 advantage - 71 % 34 %

Decisive for the carding result is still the precision of the carding gap over the whole machine width. The card-ing gap is set according to the production and the raw material processed. Due to the precise flats guidance, the tight tolerances and the material combination, cast-iron plate with cast-iron cylinder, the carding gap also adheres exactly to the predefined setting during operation.

Precise carding gap

11


Optimal Raw Material UtilisationSavings thanks to more selective trash removal

The mote knife on the licker-in is quickly adjusted for optimal raw material utilisation as well as fl exible adaptation to vari-ous raw materials. The C 70 off ers optimal confi guration possibilities for every practical requirement. The manual adjust-ment allows adaptation of the mote knife. An automated version is optionally available which makes adjustment of the mote knife possible during production.

With the selective trash removal, you determine the economic success based on intelligent utilisation of the raw fi bre material and targeted quality of the end product. Potentials for saving are considerable, as is shown in the graph Savings potential with the C 70 depending on the cotton price and waste percentage (Basis 800 kg/h card line production).

Savings with the selective trash removal

China India Cotlook A

USD 250 000.00

USD 200 000.00

USD 150 000.00

USD 100 000.00

USD 50 000.00

USD 0.000.25 0.5 0.75

China

Savings potential with the C 70 depending on the cotton price and waste percentage (Basis 800 kg/h card line production)

1 1.25 1.5

India Cotlook A

USD 6.00

USD 5.00

USD 4.00

USD 3.00

USD 2.00

USD 1.00

USD 0.00

Highest value [USD/kg] USD average 2010 - 2014

Range of cotton prices

Area of practice Savings C 70

Variable extraction width on the licker-in

Fibre Trash

Extraction width 70 mm

Waste extraction

Extraction width 40 mm

Fibre Trash

With the licker-in, the extraction width can be variably set according to the trash content of the cotton and the required waste amount

12


Q-package in pre-and post-carding zoneInfl uencing the waste composition by the strength of the inserts

Insert strong 8 mm

Fibre Trash

Insert fi ne 2 mm

Fibre Trash

The optimal ratio of good fi bres to waste is adjusted by inserts

Extremely profi table is the optimal raw material utilisation result-ing from the low-wear mote knife in the pre- and post-carding zone with diff ering extraction width. Inserts can be replaced in the shortest possible time, without using tools. For the diff erent degrees of contamination, four designs are available – open, fi ne, medium and strong.

Via frequency converter, speed of the fl ats can be continuously adjusted to production and quality – independent of the cylinder speed. The card is thereby exactly aligned to the raw mate-rial being used.

The continuously adjustable flats speed is set to the economical optimum

Waste extraction with variable fl ats speed

0.16 0.39 Speed

[m/min]

Fibre Trash

Variable fl ats speed

Quicker and easier exchange of the insert elements for selectable waste extraction

13


Example

Production (12 C 70 with 95 kg/h) 1 140 kg/h

Yearly working hours 8 400 h

Total card waste 5.5 %

Licker-in waste 1.5 %

Mixed waste without separate licker-in waste disposal

USD/kg 0.72

Licker-in waste with separate licker-in waste disposal

USD/kg 0.43

Flats and card waste with separate licker-in waste disposal

USD/kg 0.97

Yearly saving USD 54 104

The separate disposal of the licker-in waste is an option of the C 70, which has an extremely short payback time. Hence the cleaner, more valuable flat waste is separated from the dirtier licker-in waste. This is either resold as valuable raw mate-rial, or is fed into the yarn production in the spinning mill by means of a recycling line.

Separate licker-in waste disposal

Plant with separate suction removal of the licker-in waste

Features of the separate licker-in waste disposal are:• Very economical, intermittent waste disposal, that is

integrated in the waste transport of the blowroom and therefore does not generate any additional air require-ment.

• A visual assessment of the waste composition is pos-sible at any time.

• The waste box on rollers allows easy handling with maintenance and repair work.

Licker-in waste

14


Unique Integrated Grinding System IGS Ensuring consistency of quality and increasing the service life of the clothing by 20 %

With IGS-classic, a grindstone is automatically moved across the cylinder clothing during production. This operation is performed 400 times during the expected service life of the clothing. Spread over the service life of the cylinder clothing, the programming of the grinding plan calculates the optimal distribution of the grinding cycles.

IGS-classic keeps the cylinder clothing sharp

400 times

Manually ground / ground with IGS-classic (400 times)

Manually ground Automatically ground

The continual wear of the card cloth-ing gains in importance with high-ly productive cards. The integrated grinding system IGS – exclusive to Rieter – solves this problem from scratch by keeping the clothings constantly sharp.

15


With IGS you save money

In practice, it has been shown that the life cycle of the cylinder clothing is extended by 10 - 20 % in all ap-plications through the use of IGS-classic. In addition, the savings gained from the lower maintenance require-ments are evident. Furthermore, the machine downtimes necessary for manual grinding are eliminated.

Without IGS: manual cylinder and flats grinding

IGS-classic: automatic cylinder grinding, manual flats grinding

IGS-top + IGS-classic = IGS-System: automatic cylinder and flats grinding, manual flats setting

Quality improvement with the IGS-System

Neps

in ca

rd sl

iver

Acceptable number of neps

Extended service life of the clothing

IGS-top additionally sharpens the flat clothing

The IGS-top sharpens the flat clothing fully automati-cally. The control calculates the grinding cycles over the pre-selected service life of the flat clothing. Through the many small grinding operations, the quality remains more constant in comparison to that with fewer, aggres-sive manual grinding operations of a full grinding roller.

Tim

e re

quire

d

Manual grindin

Time required

IGS-classicIGS-classic and IGS-top

Cylinder grinding Flat grinding Setting

Clothings after 240 tonnes production, with IGS-top (left), without (right) IGS-top

Service life of the clothing

IGS-System

16

1990 2002 2010 2015

100

90

80

70

60

50

40

30

20

10

0


C 4

-20 %

-40 %

-20 %

The Recipe for Low Energy Consumption is Found in the Machine DesignLower energy consumption than all other cards

C 70 card – the green card

A large price factor with yarn manufacture is the energy consumption. With Rieter spinning ma-chines, focus has always been placed on low energy consumption. With the introduction of the 1.5 m technology, the energy consumption of the cards has been drastically reduced. As a consequence of the innovations in the area of fl ats, the C 70 card exhibits an energy consumption that is 20 % lower (kW per kilogram of produced card sliver).

The lowest energy balance is based on:• Maximal performance capacity• Innovative machine geometry with small, move-

able masses, as with the cylinder with larger work-ing width

• Precise machine construction, e.g. exact fl ats distance

Introduction date of the machines

Ener

gy c

onsu

mpt

ion

in k

Wh/

kg [%

]

Energy consumption strongly reduced since 1992

C 50/51TREXplus

C 70largest active carding area

C 601 500 mm working width

17

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280

160

140

120

100

80

60

40

20

0

120 000

100 000

80 000

60 000

40 000

20 000

0


65

140

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0.00

0.157

0.091

102 942

59 509

Details are based on equal carding quality and 0.1 USD/kWh

With the same carding quality, the C 70 saves more than 40 % energy compared to 1 m cards

Prod

uctio

n [k

g]

Competitors C 70 card

115 % higher performanceEn

ergy

con

sum

ptio

n [k

Wh/

kg]

42 % lower energy consumption

Cost

s for

an

800

kg/h

car

d lin

e [C

HF/a

]

Yearly savings 43 433 CHF

Energy consumption with man-made fibres, 100 % Viscose, Ne 30

= 24 % Energy saving with C 70

Card production [kg/h]

Ener

gy c

onsu

mpt

ion

[kW

h/kg

]

Competitors C 70 card

Details are based on comparable quality values, i.e. the C 70 produces an equal or better card sliver at higher production

18


Modular design

Replacement of the licker-in, fl at and doff er clothing with conventional cards is a time-consuming maintenance operation. The modular construction of the C 70 reduces these downtimes to minimal values never before achieved. All three modules are even quicker to replace with prepared optional spare modules. Each of these operations requires just one person from the main-tenance staff . For instance, the licker-in module can be complete-ly replaced in less than 90 minutes. With the IGS-system and the modular machine concept, Rieter has taken an important step towards reducing the machine downtimes and at the same time maintaining consistently better sliver quality.

Modules increase the productivity

In addition to the modern and attractive appearance of the C 70, comprehensive ergonomic improvements are integrated. These guarantee the operator friendliness and minimal ma-chine downtimes.

Modular DesignMinimal downtimes

19


AEROfeedFeeding up to 1 200 kg/h in a continuous line

Up to 1 200 kg/h* tuft material can be most economically processed with 10 cards in a con-tinuous line. In addition, it is possible to fl exibly arrange the feeding of the card line which allows optimal utilisation with various raw material lots.

*dependent on raw material

AEROfeed

20

16141210

86420

16141210

86420


CV [%

]CV

[%]

Patented pressure control

The patented pressure control (patent pending) in the card chute replaces the classical light barrier control. This func-tions by giving a precise batt weight at the card feed, taking into account the raw materials and their characteristics. The result is a minimal variation [CV%] of the batt weight.

Man-made fibres with strongly lubricating fibre finish or cotton with honeydew tend to contaminate fibre guide elements. Here the web bridge must be frequently cleaned to maintain the quality level. The solution for this time-consuming undertaking is the new, patented web bridge (patent pending). In the shortest possible time, it can be re-moved, cleaned and reinstalled. If there is an appropriate replacement component in the spinning mill, the downtime can be reduced to a few minutes. The new web bridge allows a pefect, uniform web and ensures continuous operation of the card. Thick places are substantially reduced.

Sophisticated Solutions from Card Feed to DeliveryUniform batt and smooth machine running

Course of the batt weight over 24 hours

Classical light barrier control

New, patented pressure control in the card chute

Quickly removable web bridge – a reliable solution

Web bridge

21

12

34

56 7


Sliver formation

The sliver formation takes place over a dynami-cally controlled web transport, that consists of two cross aprons and a pair of rollers. It is therefore possible to reliably produce fine sliv-ers [4 ktex] at a high delivery speed.

Short-term levelling

The feed trough measures the thickness of the supplied batt. The speed of the card feed roller adjusts automatically according to the values determined, so that a uniform sliver fineness is achieved.

Long-term levelling

The sliver fineness is measured by a disc roller pair at the sliver delivery. The measured signals are processed and used to control the feeding system.

From the Batt to the SliverPerfect control of the fibres for unequalled sliver quality

Card levelling

The sliver coiler CBA is extremely space-saving and optimally adapted to the C 70. A compact sliver separa-tion integrated in the calender unit operates reliably at full production. The sliver weight remains the same from start to finish of can filling.

Can change without loss of production and quality

1 Infeed signal: batt thickness2 Delivery signal: chute feeding speed3 Control unit for signal processing4 Infeed signal: delivery speed

5 Delivery signal: feed roller speed6 Input signal: chute filling level7 Input signal: sliver count

Card levelling system

22


Rieter drafting technology

The draw frame module of the C 70 is based on decades of unrivalled Rieter expertise concerning automatic levelling systems and the several ten thousand high-performance draw frames sold.

The integration of draw frame improves the economy and the productivity. In certain cases, application of the direct process with the rotor spinning process can optimise the yarn quality. The draw frame module is available in two versions:

• C 70 SB without levelling system.

• C 70 RSB with the proven Rieter levelling system.

According to the yarn count, raw material and spinning technology, the number of conventional drafting passages can be reduced.

Process Shortening by Process IntegrationDraw frame module based on long established know-how

Process integration

According to the yarn count and material used, the process can be shortened by application of draw frame modules on the card. Consultation on the optimal production process is a core competence of Rieter as system supplier.

Process shortening

Process shortening using rotor spinning as an example

VARIOline

VARIOline

VARIOline

C 70 Card

SB-D 45 Draw Frame

R 60 Rotor Spinning

Rotor SpinningR 60

R 60 Rotor Spinning

SPIDERweb Data System



RSB-D 45 Draw Frame

RSB-D 45 Draw Frame

Process shortening

Process shortening

C 70 Card with SB Module

C 70 Card with RSB Module

23


The C 70 RSB is equipped with a digital short-term levelling system. The uniformity of the C 70 card sliver is recorded using the well-proven principle of tongue-and-groove scanning rollers. Through the application of pneumatic load on the scanning roller, complete scanning is guaranteed. Based on the measured values, the digital signal processor calculates a nominal value for the highly dynamic servo-drive. This value is transferred at the very moment when the measured piece of card sliver reaches the levelling point in the main drafting zone.

Technology

In contrast to conventional products, the RSB module uses exact sliver scanning. This guarantees a 100 % levelling of the sliver, both in the normal production process and in can change mode. The resulting advantages with the draw frame module are:

• Shorter and quicker production process.

• 100 % levelled sliver with the C 70 RSB thanks to genuine draw frame scanning.

• Genuine parallelisation of the fibres by up to 5-fold drafting.

• Increased productivity with lower space requirements.

Maximal levelling quality

RSB levelling principle

Scanning discs

Digital signal processor

AC servo-drive Main motorfrequency-controlled

Drafting system

Rieter Quality Monitor

24


From cotton to man-made fi bres

All the features described make the C 70 card the ulti-mate, universal card, which is at home in every area of application. It is equipped for every requirement profi le. Whether it be man-made fi bres, fi ner or coarser cotton or blends with man-made fi bres.

C 70 Card for All ApplicationsNatural or man-made fi bres – the C 70 processes them

The C 70 reliably processes various raw materials and their blends

Example of a highly flexible blowroom and carding line where two different blends of cotton and man-made fibres are simultaneously produced

25


The advantage of the C 70 as a modular designed card is that it can be quickly adapted to new and familiar challenges of man-made fi bres, without high-performance carding having to be reinvented. Compared to the version for cotton, several diff erences are visible and others can only be recognised when taking a closer look:

• Fibre guiding components are made of chromium (specially coated sheet metal).

• Licker-in, cylinder, fl ats and doff er clothings are specifi cally designed for man-made fi bres produced from natural or syn-thetic polymers.

• The pre- and post-carding zone is accordingly equipped with carding elements (see graph).

The C 70 for man-made fi bres

26

C 70

2 380 345 2 980

3 325

2 93

0 (3

755

*)72

5 (8

25*)

120 (140*)

500

(600

*)

1 96

1

3 65

5 (3

755

*)

75


TECHNOLOGICAL DATA

Raw material Cotton and man-made fibres up to 65 mm

Production up to 280 kg/h

Sliver fineness 4 - 20 ktex

Batt weight 350 - 900 g/m

TECHNICAL DATA (C 70 WITHOUT SLIVER COILING)

Installed power** 21.3 - 29.8 kW

Delivery speed up to 300 m/min

Compressed air 0.7 Nm3/h

Exhaust air 1.20 m3/s

Waste disposal Central suction device, separate licker-in waste disposal

Cylinder speed 600 - 900 rpm

MACHINE DATA

Machine length (with standard chute) 3 325 mm

Machine width 2 380 mm

Machine weight (with standard chute) 5 575 kg

Working width 1 500 mm

Machine DataC 70 card

* JUMBOfeed** incl. chute

27

A 196

B14

2

345 2 980 1 160

2 38

0


CBA COILER

Cans Ø [mm] Measurements [mm]

A B

600 1 100 1 680

750 / 800 / 1 000 1 500 2 250

CBA TECHNICAL DATA

Installed power 1.4 kw



C 70 card with CBA coiler

CBA mounted on the floor, insertion from the side

28

A

755

197

Ø 126

B24

345 2 980 1 160

2 38

0


SB MODULE

Cans Ø [mm] Measurements [mm]

A B

600 1 100 1 680

750 / 800 / 1 000 1 500 2 368

SB MODULE TECHNICAL DATA




C 70 card with SB module

SB module coiler mounted on the floor

29

775 C

810

B

1 237 A

3 280

345 2 980

2 38

0


EMPTY CAN MAGAZINE, CANS WITH CASTORS

Cans Ø [mm] Number of empty cans Measurements [mm]

A B C

420 5 4 790 1 825 800

450 4 4 590 1 825 800

470 4 4 590 1 825 800

500 4 4 790 1 825 800

600 4 5 430 1 995 970

EMPTY CAN MAGAZINE, CANS WITHOUT CASTORS

Cans Ø [mm] Number of empty cans Measurements [mm]

A B C

420 5 3 900 1 825 800

450 4 3 700 1 825 800

470 4 3 700 1 825 800

500 4 3 900 1 825 800

600 4 4 350 1 995 970

RSB MODULE TECHNICAL DATA




C 70 card with RSB module

30

The Comfort of CompetencePut your confidence in Rieter's competence and enjoy the comfort of partnership!

Settle back and relax thanks to Rieter.

Rieter is the leading supplier of installations for manufacturing yarns from short staple fibres. As a competent partner, Rieter makes customers’ lives easier. It provides advice and support from the initial investment discussions to the successful operation of their spinning mills. Rieter’s comprehensive know-how from fibre through yarn to the finished textile is the basis for innovative machines and consistent yarn quality.

31


Rieter's Services • Investment planning• Plant planning• Project planning and realisation• Installation and maintenance• Preventive inspection• Wide range of wear-and-tear,

technology and spare parts

Rieter's Services • Spinning trials based

on the 4 spinning systems• Spinning mill analysis

to optimise quality and productivity

• Textile laboratory services• Professional textile

technological publications

Rieter's Services• Training for management and

operating personnel• Com4® yarn marketing

(yarn licences)• Marketing support

of reference customers• Rieter Award to confer a distinc-

tion on the best students in the textile industry

• Support for universities• Symposia and roadshows

in close proximity to customers

Valuable SystemsRieter is the only textile machine manufacturer to offer four spinning technologies and to advise customers competently, independently and with tailor-made solu-tions. Investments in Rieter machines are exceptionally attractive due to the outstanding price/performance ratio, the low conversion costs and the longevity of the products, which remain competitive by means of retro-fits. Rieter has developed high quality standards since the company was established in Switzerland in 1795. All manufacturing facilities are ISO 9001 certified.

Convincing TechnologyRieter possesses comprehensive textile and technology expertise and covers the four spinning processes through to the textile end product. Alongside the most sophisticat-ed machines and plants, Rieter offers extensive services in the field of textile technology. Customers profit from examinations and tests in Rieter's spinning centres and laboratories and thus ensure the excellent quality of their yarns at high production capacity.

Supportive PartnershipNumerous sales and service centres support customers throughout the world. For decades, customers have en-joyed the advantages of one responsible contact partner for the entire spinning operation.

www.rieter.com

Rieter Machine Works Ltd.Klosterstrasse 20CH-8406 WinterthurT +41 52 208 7171F +41 52 208 [email protected]@rieter.com

Rieter India Private Ltd.Gat No. 768/2, Village WingShindewadi-Bhor RoadTaluka Khandala, District SataraIN-Maharashtra 412 801T +91 2169 304 141F +91 2169 304 226

Rieter (China)Textile Instruments Co., Ltd.Shanghai BranchUnit B-1, 6F, Building A,Synnex International Park1068 West Tianshan RoadCN-Shanghai 200335T +86 21 6037 3333F +86 21 6037 3399

The data and illustrations in this brochure and on the corresponding data carrier refer to the date of printing. Rieter reserves the right to make any necessary changes at any time and without special notice. Rieter systems and Rieter innovations are protected by patents.

2810-v2 en 1604