Otec ECO mini dry Operating Instructions Manual
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Otec ECO mini dry Operating Instructions Manual

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  • Page 2 OTEC Präzisionsfinish Einer der weltweit führenden Entwickler und Hersteller von innovativen Schleif- und Poliermaschinen für die Schmuckindustrie. Diese Spitzenposition verdankt das Unter- nehmen seinen technologisch hochent- wickelten Produkten und einem exzellenten Angebot an Serviceleistungen. One of world-wide leaders in manufacturing and developing of innovative grinding and polishing machines for the jewellery industry.

  • Page 3: Table Of Contents

    Operating Instructions Introduction Foreword Safety Information Set up of the machine Technical Data Use and Function of the Machine Disc finishing process Capacities and work piece sizes Work pieces Finishing Process Dry grinding Dry polishing Steps for the finishing process Finishing examples 24 –...

  • Page 4: Operating Instructions

    We would like to take this opportunity to thank you for deciding to purchase our ECO-mini. OTEC conducts trial runs with the machine to check its functions. As a result of these trial runs, you may find that traces of the finishing material that was used (walnut granulate and polishing paste) remain in the machine.

  • Page 5: Safety Information

    The manufacturer will not accept any liability for damages caused by an incorrect voltage supply. Use only the media recommended by OTEC. Acids and abrasive materials can damage the machine and endanger your safety. Always disconnect the electrical lead if the machine is not used or serviced.

  • Page 6: Use And Function Of The Machine

    Use and Function of the Machine Disc finishing process The ECO-mini disc finishing machine is used for dry surface finishing of jewlery. As with hand polishing, some material is removed from the surface. The top of the process container is open and the disc at the bottom is designed to rotate.

  • Page 7: Work Pieces

    Use and Function of the Machine Work pieces The ECO-mini “dry” is especially suitable for the following work pieces: Rings, even with zircons, precious stones, amber, plastics or pearls Necklaces larger than 4 mm (thinner necklaces can be tangled up) Earrings Brooches Pendants...

  • Page 8: Finishing Process

    Finishing Process Both dry grinding and dry polishing can be done in the ECO-mini. Walnut-shell granule of various grain sizes, impregnated with polishing paste or grinding paste, is generally used for processing. The coarser the granulate, the better its smoothing property. The finer the granulate, the better the shine.

  • Page 9: Steps For The Finishing Process

    Finishing Process Observe the following under all circumstances: We recommend examining the work pieces for their suitability of being processed in the ECO-mini. The manufacturer does not guarantee work pieces with weak areas, which have a high probability of breakage. Well-set stones do not normally fall out when finishing with the ECO-mini “dry”.

  • Page 10: Finishing Examples

    Finishing Process Finishing examples for dry polishing Finishing of emerypaper-treated jewelry If you want to avoid wet or dry grinding you should treat jewelry or chains with sandpaper (minimum 600 grain size sandpaper) first. Fill 1.5 litre of HN1/100 (coarse walnut-shell granule) into the process- container.
  • Page 11 Finishing Process Finishing examples for dry grinding Roughly pre-finished work pieces or strongly scratched surfaces Fill 1.5 litres H2/100 (coarse walnut-shell granule impregnated with grinding paste) into the process-container. Set the finishing time by turning the timer in a clockwise direction. The machine starts automatically.

  • Page 12: Use Of Granulates And Pastes

    Finishing Use of Granulates HN1/100 (coarse walnut-shell granule) - for finishing jewelry which have been treated with emerypaper - for finishing scratched jewelry Lasts for up to 100 operating hours. HN1/400 (medium walnut-shell granule) - for filigree jewlery, necklaces or bracelets where HN1/100 (coarse walnut-shell granule) could get caught because of its size.
  • Page 13 Finishing Process Dosing of polishing and grinding pastes New walnut-shell granule from OTEC is already impregnated with polishing or grinding paste. No additional paste has to be added during the first 10 operating hours. During dry polishing After 4 – 6 operating hours add 2 – 3 cm polishing paste P 6 from the tube into the cold granule, by allowing the machine to run for a few minutes without any work pieces.

  • Page 14: Recommended Grinding And Polishing Materials

    Recommended Grinding and Polishing Materials Dry polishing – OTEC walnut-shell granule HN1/100 (coarse) … HN1/500 (fine) – OTEC polishing paste Dry grinding – OTEC walnut-shell granule H2/100 – OTEC grinding paste SP26 While using dry grinding granulates a higher wear of the machine is to be expected.

  • Page 15: Mechanical Malfunctions And Remedies

    Finishing Problems and Remedies Problem: The granulate is very wet. Cause: The polishing paste dose was too high. Remedy: Take the granulate out of the machine and let it dry in the air for a few days. Use fresh granulate in the meantime. Problem: The granulate is very dry –...

  • Page 16: Guarantee

    OTEC, the machine is not protected by an earth leakage circuit breaker (ELCB, FI) There is no warranty for wear parts.
  • Page 17 OTEC Präzisionsfinish GmbH Dieselstraße 12 75334 Straubenhardt- Feldrennach/Germany Tel. + 49 (0) 70 82 / 4911- 0 Fax + 49 (0) 70 82 / 4911- 29 E-Mail: info@otec.de http://www.otec.de Händler / Representative:...

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