The "Preeflow Eco-PEN300 1K" dispenser from Viscotec ensures optimal surface technology processes and low material consumption in automated use. Applications can be found everywhere: for example on steering wheels and grilles for cars, excavators and tractors, on coffee machines, refrigerators and other household appliances.

Partial coatings, opaque, transparent or colored as well as flat or formed surfaces are complex in the order. The colored lacquers are dosed into the molds made of metal or plastic during emblem production. The challenge is both the exact dosage and the optimum viscosity adjustment of the materials to be dosed. The thickness of the paint application is crucial in order to keep the surplus material low or to prevent reworking. The paint must not be too tough or too liquid, otherwise the paint runs too little or too hard. The time of curing also plays a decisive role, so that the material optimally distributed in the trough.

Industrial liquid gasket, adhesive and potting compound

The automotive industry sets the highest standards in terms of quality and design, especially for the supplier industry. In addition, emblems for the interior are often coated with polyurethane for a more pleasant feel after the painting process. So far, the entire paint process was often done by hand, then the workpieces were polished and increased paint application thereby removed.

The Spanish Preeflow distributor Dotest has developed an automated system with which the paint application on emblems succeeds perfectly and with constant process parameters. Two robot systems, each with two Eco-PEN300 1K dispensers in combination with the “Eco-Control EC200-K” dosing controls, ensure that the material can be applied with repeat accuracy, for example with a three-color logo for installation in a steering wheel. The components are pre-mixed and filled into cartridges: paint, solvent and hardener. The dispenser takes on the task of precise and absolutely repeatable dosing from the cartridges.

Dosing machine for sealing foam, adhesive + potting compound

In the Dotest application, the precision volume dispenser in the tabletop robot applies one color after the other in two steps. A precise paint application is created in the shortest possible time - without paint splashes, protrusions and gradients. The shape of the paint application can be precisely pre-programmed in the robot system so that curved shapes and larger areas can also be treated without any problems.

The Preeflow Eco-PEN300 1K Dispenser itself is a rotating, pressure-tight positive displacement system. Thanks to the continuous piston principle, aqueous to pasty liquids are conveyed perfectly. The dispenser consists of self-sealing rotor and stator, whereby the controlled rotational movement of the rotor displaces the medium. As a result, the promotion is generated in the stator, which can be done without changing the medium and also backwards. The dosing pump guarantees a clean, controlled material or medium breakage without dripping.

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