OTEC: Rational Problem Solutions


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HomeLearning CenterJewelry MakingOTEC: Rational Problem Solutions
By Susanne HeuerMore from this author

The company OTEC develops and produces machines for mechanical surface processing. Founded in 1996, the young company received a commendation in the State of Baden Württemberg Innovation Prize. Its first customers were jewelry companies form the Pforzheim region; through using the OTEC disc finishing machines, they intended to lend a shining surface to their products. In addition to state of the art disc centrifuges and drag finish machines, OTEC also offers micro-filtration systems.

OTEC
The M 50 in operation with a disc centrifuge

OTEC, a company from the Southwest of Germany, has since advanced to become one of the world's leading brand names for high quality grinding and polishing systems. In major jewelry production, the traditional polishing drums and vibration barrels have almost disappeared entirely. State of the art technology satisfies the demand for efficiency and economical effectiveness and has substantially influenced the simplified application of the equipment when grinding, smoothening and polishing jewelry and small components.

The new filter concept is an integral element of the systems MF 50-200

OTEC has offered a new perspective in tackling the problems relating to traditional grinding and polishing methods. The high quality systems are equipped with a technology that creates a closed-off cycle. Wet processing of the metal surfaces creates wastewater. Traditional systems operate with expensive filtration systems and centrifuges that frequently only offer a weak performance and insufficiently remove the wastewater. Naturally, this means that expensive precious metal residue is lost, although it should be present in the sludge in a highly concentrated form.

Cleaning the used water: the units in the MF micro-filtration system

The method employed in the MF series by OTEC cleans the wastewater in a significantly more concentrated form. After the grinding and polishing process, the water flows out of the grinding system into the filter chamber of the micro-filtration system. The innovative filter concept removes the entire solid residue from the wastewater and captures the sludge concentrate in replaceable containers. The filter unit in the MF series filters particles out of the wastewater, if they are larger than 0.2 micrometers. The water and compound mixture, which is cleaned in this way, is fed into a clean water tank, and purified water is pumped back into the grinding system. This circuit means that the water can be used for several weeks. The sludge that collects can be removed at any time from the exchangeable containers.

www.otec.de

by Susanne Heuer

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Susanne Heuer

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