Volumetric Chamber Metering

Volumetric Chamber Metering With the KOCH metering device it is possible to meter material with an accuracy of up to 0.005 %. You can colour shotweights from 1 to 5000 grams and this if required using just one metering station. Every compact conveyor fits on all large metering stations and intermediate hopper units. Powder metering with ± 0.15 % accuracy A simple calculation shows how important it is to use a good volumetric chamber device: If only 1 % more masterbatch per 100kg/h than the required minimum is processed, and assuming that a 24 hour working day with 5 working days a week is in operation, at a cost factor of 10 per kilogram, it would result in approximately 60,000 extra costs per annum. Exact metering saves 5,000 per month. This means that the costs of purchasing a good metering device are very quickly recouped. A metering roller fitted with small chambers that are always evenly filled. A relief plate ensures the same bulk density irrespective of how much material is contained in the hopper. An agitator and scraper guarantee optimum conditions for accurate metering Granulate metering with ± 0.15 % accuracy Liquid metering by means of a piston pump with ± 0.15 % accuracy A piston stroke activates the metering process. An inlet and outlet valve guarantee a metering accuracy of +/- 0.15 % per stroke Each chamber of the metering roller must be evenly filled before metering. Granulate protruding from the chambers is simply stripped off by a stripper plate. In addition, a constant rpm speed results in a high metering accuracy 12 13

Dosing station Pu/Kö/Ma with Volumetric Chamber metring 230 V/50 Hz connection Scraper Lid Plexiglas container Agitator Star knob screw Type Kö Granular station for masterbatch With volumetric chamber metering to save on colour. This granular station can be employed to meter additional colour with extreme accuracy.the quantity of the metered additive is continuously variable. Whether masterbatch, large or small pellets, the metering roller has been designed to cope with them all and has performed outstandingly over the years. Type to kg/h Capacity/litre Kö 1 0.5 4 Kö 2 1.0 6 Kö 3 4.0 10 Kö 4 7.0 10 Container made of Plexiglas Type Ma Regrind station and granular station up to 200 kg/h The ability to meter sharp-edged pellets without blocking the metering equipment is absolutely essential for continuous production.the regrind station achieves this by a star-feeder of V2A steel. Absolutely leak-proof, with a central agitator and a side-mounted motor. A slider assembly at the bottom of the station provides for quick colour or material exchange without the need to dismantle any of the equipment. Type Pu Metering station Pu 2 Metering roller 02 The powder station Pu is a good example for showing that all KOCH devices can be completely disassembled for example, for cleaning, in a few stages Powder station The Type Pu metering station can be used to meter powder with extreme accuracy, up to 0.005 %. Colours can be changed quickly and cleanly.the powder station is of a simple and logical design and is reliable and easy to use: it has a metering roller with assisted discharge of its chambers, an agitator to move the powder and a screw to remove the roller for cleaning or exchanging. Type to kg/h Capacity/litre Pu 1 0.5 4 * Pu 2 1.0 6 * Pu 3 2.0 10 * Pu 4 4.0 10 * Pu 5 7.0 10 * Pu 7 15.0 40 (V 2 A) * Container made of Plexiglas Type to kg/h Capacity/litre Ma 1 7.0 11 Ma 2 14.0 11 Ma 3 25.0 11 Ma 4 140.0 11 Ma 5 200.0 20 Container made of cast aluminium and Plexiglas Type Ma 7 Regrind station up to 600 kg/h This large Ma 7 metering station has been specifically designed for poor flow granules or grain. A star-feeder fitted with an agitator installed at the bottom of the station provides uniform discharge. It is of identical design to the Pu 7 and has up to 15 kg/h powder throughput. Type to kg/h Capacity/litre Ma 7 15.0 40 Container made of cast aluminium and Plexiglas 8/1 made of V 2 A steel 14 15

Pre-mixers with metering equipment Kö 6 Virgin material and regrind A large star-feeder with integral sealing rings enable not only virgin material to be metered but also flowable regrind. The volumetric chamber metering provides accurate metering. Fully automated conveying system for virgin material, regrind and masterbatch colouring Type G, 2 x Ma 4, Kö 2, A 8 and TM A 8 D Type to kg/h Capacity/litre Kö 6 350.0 25 Kö 7 500.0 60 Kö 8 1000.0 60 Container made of V 2 A steel Type V Granular attachment for powder station This unit provides flexibility because it can be used on the powder station to meter granulate of any kind. Just mount the attachment to the station using the two screws and you re ready for metering granulate.this enables the performing of many additional tasks both quickly and easily. Batch metering for an extruder with 950 kg/h Mixer V 60 x, 2 stations Ma 7, 1 station Ma 5 and conveyor separators A 50 and A 20 Compatible with all metering rollers Pre-mixer Type G, Kö 2, Z 5, 608 Central conveying system with colouring and pre-mixers Type G, Kö 2, Z 5, A 8 16 17

Pre-mixers for injection moulding machines Type KK Processing capacity up to 20 kg/h Shotweight up to 200g You should use a pre-mixer both for powder metering and for extremely accurate masterbatch processing. If regrind is also part of the equation, this is the surest way to go.all that s missing now is a fully automatic operation is a conveyor unit. The small mixer can be attached to all small machines. Mixer made of cast aluminium/so HB 100, abrasion-proof Illu.: shown with intermediate hopper Type Z 5 and metering station Type Kö 2-1. Type V 12 Processing capacity up to 100 kg/h Shotweight up to 1.5 kg Available here are also metering units for liquid colours, powder, masterbatch, virgin material or regrind in conjunction with the matching conveying units.the mixer is made of V 2 A steel. Illu.: shown with intermediate hopper Type Z 12 and metering station Type Kö 3. Type G Processing capacity up to 700 kg/h Shotweight up to 900g An economical unit designed for medium processing capacity. Up to four different components can be processed in the modular system.add a KOCH conveyor unit and you are ready for a trouble-free automatic operation. Mixer made of cast aluminium/so HB 100, abrasion-proof Illu.: shown with intermediate hopper Type Z 12 and metering station Type Kö 2. Type V 25 Processing capacity up to 250 kg/h Shotweight up to 4.0 kg Designed for medium-sized processing capacities with 25 litre capacity, made of V2A steel suitable for up to four components. Illu.: shown with intermediate hopper Type Z 24, metering station Type Ma 2. Type V 40 not shown (comparable to V 24) Processing capacity up to 400 kg/h Shotweight up to 7.0 kg Made of V 2 A steel this machine is intended to cope with large and really large processing capacities. Up to four different components can be processed. 18 19

Pre-mixer for extruders and other equipment (batch metering) Type G x Processing capacity up to 60 kg/h Up to 3 metering stations attached to the mixer. Designed in cast aluminium/so HB 100, abrasion-proof. Intended for extruders and blow moulding machines. Metering is effected in batches. If the material level falls below a predetermined level, all stations meter a precisely adjustable amount of material to the mixer. This means that an identical colour shade is guaranteed at all times irrespective of whether there are fluctuations or changes in the output of the machine. Type G x 7 Processing capacity up to 120 kg/h Up to 4 metering stations can be fitted, comparable to G x, in cast aluminium/so HB 100, abrasion-proof Type V 12 x Processing capacity up to 250 kg/h Another batch metering unit for largest capacities. Up to 4 components can be processed without difficulty.whether powder, granulate or regrind the same excellent results are achieved. Mischer in V 2 A. All that is required to convert the system to trouble-free operation are matching conveyors. Mixer in V 2 A steel. Type V 25 x Processing capacity up to 350 kg/h Comparable to V 40 x, suitable for 4 metering stations. Mixer in V 2 A steel. Type V 40 x Processing capacity up to 600 kg/h Here too, metering takes place in batches. Up to a maximum of 4 metering stations, or alternatively 6 stations can be fitted to the pre-mixer unit.a material change requires just a minute to slide the stations away from the mixer and a further minute to swivel away the conveyors.and all this without the need to resort to tools, saving both time and effort. Mixer in V 2 A steel Type V 60 x Processing capacity up to 900 kg/h Comparable to V 40 x, but higher Type V 40x, Ma A8, Kö 4 Type V 100 x Processing capacity up to 1500 kg/h Comparable to V 40 x, but higher 20 21 3

The Company The Modular System Metering and Mixing Conveyor units Drying Conveyor systems Visualisation Performance data Ma Kö2 183 402 530 KK G ø50 capacity Type KK 20 kg/h 25 kg/h 200 g 150 g 200 g 0,1 KW 2 681 Z2 Shotweight Gx7 284 Pu2, Kö2 V12x ø50 140 100 capacity Type Gx 50 kg/h 60 kg/h 0.21 KW 3 Type Gx7 100 kg/h 120 kg/h 0.22 KW 4 capacity Type V12x 210 kg/h 250 kg/h 0.45 KW 4 Type V25x 280 kg/h 350 kg/h 0,55 KW 4-6 capacity Type V40x 400 kg/h 500 kg/h 0.75 KW 4-6 Type V60x 600 kg/h 1000 kg/h 1 KW 4-6 Ma5 Kö3 Ma4 Pu2, Kö2 263 G V12 V12x ø50 885 Type G 60 kg/h 70 kg/h 900 g 700 g 900 g 0.15 KW 3 815 capacity 1000 Shotweight 398 570 610 Z5 V12x ø97 140 160x170 Pu3, Kö3 Kö6 Ma5 Z12 V12 V12x ø97 160x170 22 Type V25 200 kg/h 250 kg/h 3000 g 2000 g 3000 g 0.25 KW 4-5 V40x ø96 1145 Type V12 80 kg/h 100 kg/h 1500 g 1000 g 1500 g 0.2 KW 4 937 capacity 1115 Shotweight 520 398 885 861 Ma4 200 23 3

Control units Type SL 31 Control unit for 1 station Type SL 41 Control unit for 2 stations On injection moulding machines, metering and colouring is performed in accordance with the work cycle of the processing machine. By determining and entering the required metering times for the individual components, it is possible to colour smallest and largest shotweights of up to 0.005 %. All control units can be equipped with additional acoustic or visual (flashing) alarms for added safety. Metering and mixing equipment integrated in central conveying system Type SLm 31 und SLm 41 These control units also come with a micro-processor controller, input of the metering amount is effected in % with memory for stored recipes and LED display. Type MCm Micro-processor control unit The new generation of KOCH-MC micro-processor control units fulfils all customer requirements.all processes from metering, colouring, processing capacity in kg with date, time, statistics, level control and possible fault monitoring are handled and stored for recall at any time. However, you can also connect it up to a PC via an integral interface which enables you to access the data from your office or to input and change recipes in the recipe memory. Once you have entered the recipe for the material to be processed you need only input the desired percentage values and the metering quantity will be computed automatically by the KOCH-MC control unit. In this way several hundreds of recipes can be inputted and stored.a large LC display facilitates data input.the internal constant value memory ensures that no information is lost. Programming of the control unit is greatly simplified by logic user-guidance.this makes the whole task simple and safe and significantly reduces the effort involved as these days instant access and evaluation of all operating data is no longer a luxury, but rather a necessity. 24 25

Colouring devices KEM with volumetric chamber metering Type KEM / AZ Processing capacity up to 200 kg/h Shotweight up to 10 kg The KOCH Type KEM direct colouring devices with volumetric chamber metering are the economic solution to your needs.the detachable KOCH metering unit provides for continuously adjustable metering and thus guarantees absolutely identical colour shades. A 230 V mains plug and a zero-current pulse is all that is required to colour your granulate on a processing machine of your choice. If required we can supply the matching flange on request. Illu.:Type KEM/AZ/608/Z 2 Type KEM - Ma / AZ Processing capacity up to 200 kg/h Shotweight up to 60 kg The KEM-Ma colouring device is configured as a largest shotweight unit or as the second component in conjunction with a metering station for virgin material up to 60 kg/h. Add to this a matching conveyor, and you would be hard put to find better accuracy and value The following metering rollers are available for shotweights of: 1 to 80 g Roller 9/10 5 to 300 g Roller 9/1 10 to 500 g Roller 9/2 20 to 2000 g Roller 9/3 100 to 1000 g Star-feeder 8/1 Type KEM / AZ with two stations Processing capacity up to 200 kg/h Shotweight up to 10 kg Up to 3 or 4 components can be processed on this adapter. From virgin material, masterbatch to blowing, antistatic or flame resistant agents or regrind via a two-component conveyor it performs equally well whatever the material. Illu.:Type KEM/AZ/Z 12 9/0 9/1 9/2 9/3 Star-feeder made of V2A steel 8/1 Type KEM / AZ 3 Processing capacity up to 150 kg/h Shotweight from 2 g to 2 kg This direct colouring device with volumetric chamber metering represents a favourably priced solution. In a swivelled back position, even the masterbatch can be weighed. Illu.:Type KEM/AZ/Z 5 The KEM control system has four different programs to choose from, one to match each application. The micro-processor controller comes with recipe storage capacity, a percentage figure being inputted. KEM,Tm A 8, Z 5,A Z flange A direct colouring device with two-component separators for virgin material and regrind. Processing in the central conveying system 26 27

GRAVIKO Gravimetric metering and weighing system (patented) Metering and weighing gravimetrically, controlling, correcting and evaluating in one operation and all this at a favourable price. The individual components are metered into a weighing hopper by a slider or alternatively a star-feeder (volumetric chamber metering).the scale registers the actual weight of the individual components which is transferred to the KOCH controller and compared with the calculated desired weight.the weighing for each filling is performed several times consecutively, and normal fluctuations are compensated by forming the mean value. If the desired and actual weight coincide, the bulk goods are emptied into the mixer. By combining the slider opening times with volumetric chamber metering it is usually possible to exactly meter up to ± 4 grains per 1000. A control loop is created by combining the optional accurate volumetric chamber metering with the controlling and correcting gravimetric metering.this control loop guarantees an absolutely correct metering independent of the bulk goods with an accuracy of ± 3 grains per 1000. The KOCH GRAVIKO program detects external interferences as "tearaways and disregards them in the comparison of the weighing results. Faulty metering due to external influences is then a thing of the past. GK 60 lid with weighing cell Graviko GK 60 Processing capacity up to 60 kg/h Depending on the metering station used up to 60 kg/h throughput can be processed.the main components are added via a slider, smaller metering amounts via the proven powder, masterbatch or granular station (Pu/Ma(Kö). For metering and conveying, the modular principle is to be found at work here too.all components are thoroughly mixed after weighing (see photo below right), before they are processed. The GRAVIKO can be disassembled in two minutes without the aid of tools (left). Weighing hopper Viewing window with agitator Graviko GK 300 Processing capacity up to 300 kg/h Depending on your requirements, up to 4 to 5 metering stations can be combined as part of the modular system. Granules, powder, regrind or grains each material can be individually weighed, registered and mixed before being passed on for processing. We supply a suitable control unit for each GRAVIKO type Graviko GK 600 Graviko GK 1000 Comparable to GRAVIKO GK 300 and GK 1000 but lager. GRAVIKO Type GK 60 28 29

Graviko GK 1600 Processing capacity up to 2000 kg/h This GRAVIKO can be used to process up to 2000 kg/h.the 100 mm slider opens up to an accuracy of a thousandth and weighs the quantity within 2 seconds.this is followed by the second and third component until the entire content has been emptied in the mixer and mixed there. Here the mix is directly fed to the processing machine. Depending on the container size between 4 and 6 metering stations can be mounted. GRAVIKO on silos. With material throughput registering, logging, documentation and automatic material provision All KOCH conveyor units can be added as modules to convey the material. MCMG controller The MCMG controller is used for the gravimetric weighing and metering system GRAVIKO GK for n Measuring, controlling, regulating n communicating n Operating n reporting n Logging It is characterised by innovative technology and easy operation Data input of: n Exact recipe n Recipe administration n Batch size n Mixer run-on time Data output: n For documentation of the material composition as it can be used in ISO 9000 ff. verwendet werden kann. n The serial interface enables the printing out of a log for the purpose of operating data acquisition or to transmit it to a higher-level computer. For metering stations with a material throughput of over 1,000 kg/h you are supplied with a swivel device to enable you to change your material quickly without tools This metering station can also be swivelled outwards once the two wing screws have been loosened.then the lid along with the scales can be removed via the snap-release fasteners.the lid and the scales can be separated via a drawing bolt. The KOCH GRAVIKO GK can be disassembled in just two minutes Type/dim. A B C Ø D N E GK 60 540 805 735 50 140 GK 300 660 905 880 100 200 GK 600 860 1640 910 100 200 GK 1000 1400 1560 1060 100 330 GK 1600 1780 2280 1190 100 200 Graviko Throughput Material Maximum No. Supply - of stations input Type up to (kg/h) Graviko Power voltage (KW) ± 10% (V/50 Hz) GK 60 60 GkAl/V2A 4 0.55 400 GK 300 300 V2A 5-6 0.65 400 GK 600 600 V2A 5-6 1.0 400 GK 1000 1000 V2A 6 0.8 400 GK 1600 2000 V2A 5-7 1.0 400 30 31