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Clean Grinding Oils Increase Quality, Decrease Cost

This modular micro-filtration system with Vomat FA-series high-performance filter technology is a critical part of any metal processing operation.

Posted: March 14, 2014

A roof or sidewall mounted condenser with selectable heat dissipation.
An external condenser for indoor applications.
An optional slide-out compressor unit for Vomat FA 120 through 240 series.
A condenser mounted in lift-up access hatch of filtration unit.
Vomat not only provides powerful filtration equipment, provides powerful filtering technology

The decision for the right micro-filtration system in any metal processing operation is an important part of the manufacturing success. High quality metalworking fluids and their optimal filtration are prerequisites for high product quality, efficiency, and trouble-free production.

Micro filtration in tool grinding is definitely a worthwhile investment for the user. The cleaner the grinding oil remains, the less often it needs to be replaced and thus saves a lot of money. Likewise, tool costs and machine downtime will be lower. Another benefit is increased surface quality of parts produced.

Clean oil also saves energy, generates less waste and contributes to a favorable environmental footprint. Stephen Hecht, the chief executive officer of Oelheld U.S., Inc. (Elgin, IL), the exclusive distributor of Vomat micro-filtration systems in the U.S., states that “the decision on proper filtration and cooling has a major impact on the production costs of the finished products. That is why our systems are designed to enable manufacturers to achieve these cost advantages.”

Vomat filters separate dirty and clean oil 100 percent. Another standalone feature of all Vomat filtration systems is the availability of clean oil (NAS 7-8) at the point of work, even during the on-demand backwash cycle of the filter elements. Metal coolants cleaned with these systems will outlive any coolant cleaned with more conventional filtration systems. In continuous micro-filtration mode, metal lubricants are constantly cooled to preset temperatures.

Several types of cooling equipment are available to choose from. For the smaller units up to the FA 240 model, there is an integrated, easy to service AC compressor unit with its condenser mounted in the lift-up access hatch of the unit. The obtainable temperature accuracy is  ± 0.2 K. “Our constant temperature capabilities assure utmost accuracy while producing micro tools to extremely tight tolerances,” says Hecht.

Moreover, there are add-on modules with external condenser set-up. The cooling capacity with this type of unit ranges from 9 kW to 60 kW. Another option is a cold water-heat exchanger which can be operated with plant wide cold water cooling systems. If a machine requires drive or spindle cooling, there are modules available to satisfy those needs.

“Our systems are available as solutions for individual applications, as modular systems, or as whole plant central filtration systems,” explains Hecht. “Due to their numerous advantages, these filtration systems are powerful alternatives to previously used conventional filtration systems in the metalworking industry.”

Oelheld U.S., Inc.1760 Britannia Drive Unit #1, Elgin, IL 60124, 847-531-8501, Fax: 847-531-8511,

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