Dispersion and Fine Milling in the Laboratory DISPERMAT TORUSMILL

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1 Dispersion and Fine Milling in the Laboratory DISPERMAT TORUSMILL VMA-GETZMANN GMBH Verfahrenstechnik

2 Dispersion and Fine Milling Dispersing with a Laboratory DISPERMAT Dispersion with the "Doughnut-Effect" In order to obtain optimal dispersion results with the DISPERMAT, the geometry of the dispersion vessel has to be matched with the peripheral speed and the distance of the impeller disc to the bottom of the vessel, as well as with the viscosity behavior of the millbase. The millbase should be of high viscosity to guarantee that the different speed of impeller disc/mill base causes the dispersion of the pigment agglomerates. When the dissolver is applied properly, the millbase exhibits laminar flow without turbulence. Dissolver disc tip speed m/s Dissolver disc Ø mm Speed rpm The diagram shows the relationship between impeller tip speed compared with rotational shaft speed for different dissolver disc diameters. The red area indicates the optimum range of impeller tip speed of between m/s. Example for a millbase volume of 100 ml container capacity 250 ml inner diameter of container 65 mm container height 85 mm dissolver disc diameter 30 mm revolutions of shaft rpm peripheral velocity of disc m/sec The DISPERMAT can be used as a laboratory dissolver or as a laboratory bead mill by replacing the impeller disc with a media mill impeller. Fine Milling with the DISPERMAT Laboratory Dissolver DISPERMAT bead mill with mill base For the highest levels of particle size reduction or with agglomerates which are difficult to disperse, the DISPERMAT can be converted into a practical and effective bead mill. For this the dissolver disc is removed and replaced by a milling tool (teflon impeller, double milling impeller or pearl mill impeller according to DIN/ISO). The bead milling system consists of a milling tool, a double walled container and the milling beads. In the milling container the milling beads together with the millbase are kept moving by the milling tool.

3 Modular Dispersing and Milling Systems APS APS Milling System Optional: Nano and ceramic version When combined with the APS Milling System and a suitable impeller a DISPERMAT laboratory dissolver is converted into a closed,batch bead mill. The sliding cover is lowered to seal the milling container. The millbase is then dispersed. On completion of the dispersion process, the sieve sealing plug is removed and the millbase is discharged from the milling container with the assistence of compressed air, leaving the beads behind. APS system millbase quantity* container capacity milling beads approx. DISPERMAT APS ml 30 ml 12 ml LC / CV3 APS ml 50 ml 20 ml LC / CV3 APS ml 125 ml 50 ml LC / CV3 APS ml 250 ml 100 ml LC / CV3 APS ml 500 ml 200 ml LC / CV3 APS ml 1 litre 400ml LC55 / CV3 TML TML Basket Milling System Optional: Nano, ceramic and vacuum version The addition of the TML converts the DISPERMAT into a closed basket milling system. Basket mills are extremely efficient grinding systems where a grinding basket is lowered into the millbase for dispersion. The rotating milling tool agitates the beads inside the basket which disperses the millbase. The dissolver disc, the basket and the patented pumping wheel generate effective circulation of the millbase, helping to provide excellent dispersion results in a short period of time. Intense circulation of the product is generated with the dissolver disc and integrated pump wheel. When the milling process is complete, the grinding basket is raised. Any product remaining in the basket is centrifuged out by briefly running the milling and dissolver disc. TML system millbase quantity* container capacity milling chamber DISPERMAT TML ml 500 ml 43 ml CV3

4 CDS CDS Vacuum Dispersion System Optional: Single or double walled container holder The CDS dispersion system enables the dispersion process to be carried out in single walled containers, in a closed system under vacuum. The single walled containers are placed into the container holder and secured in place. The liquid and powder components are added and the glass cover lowered into place. The actual dispersion process can then be carried out under vacuum. The single walled container is placed in the single or double walled container holder and the liquid and powder components are added. After pre-mixing, the dispersion starts under vacuum. The dispersion process can be continuously monitored through the glass cover. CDS system product volume* container size container dimensions DISPERMAT CDS ml 250 ml dia.: 65 mm / height: 85 mm LC / CV3 CDS ml 500 ml dia.: 80 mm / height: 100 mm LC / CV3 CDS ml 1 Liter dia.: 100 mm / height: 130 mm LC / CV3 CDS ,5 Liter 2 Liter dia.: 120 mm / height: 180 mm CV3 CDS ,2 Liter 3 Liter dia.: 140 mm / height: 200 mm CV3 SR SR03 Rotor-Stator System Accessories for DISPERMAT The SR rotor-stator system is a dispersion system for batch processing low viscosity products. The bearing free stator is an ideal flow breaker. It prevents rotation of the product and provides input of mechanical energy in a very concentrated area. The actual dispersion takes place between the rotor and the stator. Dispersion, Milling and Stirring Impellers Stainless Steel Double Walled Containers volume inside dia x height 30 ml 30 x 40 mm 50 ml 40 x 50 mm 125 ml 50 x 70 mm 250 ml 65 x 85 mm 500 ml 80 x 110 mm 1 litre 100 x 130 mm 2 litre 120 x 180 mm 3 litre 140 x 200 mm 5 litre 180 x 200 mm 10 litre 240 x 240 mm 15 litre 280 x 280 mm

5 DISPERMAT LC30 product VOLUME: 50 ml - 1 litre Modular Milling System APS CDS + SR APS APS Milling System with Mill Base Proven laboratory dissolver with the latest motor technology The DISPERMAT LC30 is an efficient high speed dissolver which is suitable for various applications including dispersion and homogenisation. The motor is convection cooled and is extremly quiet during operation. APS with Ceramic Lining LC controls for the DISPERMAT LC30 and LC55: rpm Adaptive turn sensitive speed adjustment digital speed indication timer function with digital display of the pre-selected time as well as the elapsed time

6 DISPERMAT LC55 product VOLUME: 50 ml - 3 litre CDS Vacuum Dispersion System CDS + SR APS SR Rotor-Stator System Strong laboratory dissolver with timer and central clamping system The DISPERMAT LC55 is a strong laboratory dissolver which can be used for small as well as large millbase volumes. In order to comply with the latest safety directives and reduce the risk of injuries caused by the rotating dissolver disc, these DISPERMATs are fitted with a safety device. DISPERMAT LC30 DISPERMAT LC55 product volume* 50 ml - 1 litre 50 ml - 3 litre speed rpm rpm power 0.3 kw 0.55 kw container clamping yes - central clamping system - yes safety device - yes milling systems (see page 2-3) *Product volumes are based on medium viscosity. The actual volume may differ depending on the flow behaviour of the product.

7 DISPERMAT CV3 product VOLUME: 50 ml - 5 litre Standard CV3 Dissolver TML Basket Milling System CDS + SR APS TML DISPERMAT rpm 15 min 40 C Universal laboratory dissolver compatible with all DISPERMAT milling systems The DISPERMAT CV3 has digital displays for speed, torque, time and product temperature. An additional timer enables the speed to be changed automatically to another setting. The ergonomically designed stand with a precision linear guide for easy height adjustment, is available with a stainless steel or painted column. CV3 controls: adaptive turn sensitive speed adjustment digital display of speed and torque timer function with display of the pre-selected time as well as the elapsed time adjustment to a second speed by the timer connection for PT100 with digital display of the product temperature product volume* speed power central clamping system safety device milling systems (see page 2-3) DISPERMAT CV3 50 ml - 5 litre rpm 0.75 kw yes yes

8 Our experience - Your advantage Trials with customers products are carried out in VMA-GETZMANN`s highly sophisticated laboratory and pilot plant facilities.make an appoitment for a demonstration with your own products and let us show you the progress that we have made in dispersion technology. Our complete range of products can be seen on our website as well as in our main catalogue. VMA-GETZMANN GMBH Verfahrenstechnik Euelerhammerstraße 13 D Reichshof Phone Fax info@vma-getzmann.de Novelties Technical modifications reserved.

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